The CH9102X is a high-speed USB-to-UART bridge IC developed by WCH (Jiangsu Qinheng Microelectronics). It enables seamless communication between a USB host and UART-based embedded systems, making it ideal for programming, debugging, firmware updates, and serial data communication. The device integrates a USB 2.0 Full-Speed interface, an internal clock, power-on reset, and firmware, eliminating the need for an external crystal oscillator. The CH9102X variant supports 3.3 V UART I/O and is widely used on development boards such as ESP32 and other MCU-based designs. Key Features USB 2.0 Full-Speed (12 Mbps) compliant device interface USB-to-UART bridge supporting baud rates from 50 bps to 4 Mbps 3.3 V UART I/O (CH9102X variant) Integrated clock oscillator (no external crystal required) Built-in power-on reset circuit Hardware full-duplex UART with independent TX/RX buffers Supports 5, 6, 7, or 8 data bits Supports None, Odd, Even, Mark, and Space parity Supports RTS/CTS hardware flow control Supports MODEM signals: RTS, CTS, DTR, DSR, DCD, and RI TNOW output for automatic RS-485 transmit/receive control Compatible with built-in CDC drivers and vendor VCP drivers on major operating systems Available in compact RoHS-compliant QFN packages #CH9102X #USBtoUART #USBBridge #UART #SerialConverter #WCH #USB20 #EmbeddedSystems #ESP32 #MCU #RS485 #FirmwareUpdate #Debugging #IoT #PCBDesign

Isolated Module DC DC Converter 2 Output 5V -5V 300mA 4.5V - 5.5V Input # Engineering Specification ## Product Name IR0505S ## General Description IR0505S is an isolated power conversion module designed to provide reliable DC-to-DC power conversion for electronic and embedded systems requiring galvanic isolation between input and output circuits. The device is intended for use in industrial control equipment, communication systems, instrumentation, automation platforms, and other electronic applications where stable power delivery and electrical isolation are essential. The module incorporates integrated switching and isolation technologies to support efficient power transfer while reducing system complexity and board-level design effort. Its compact form factor allows straightforward integration into printed circuit board assemblies and power distribution architectures. The design emphasizes operational reliability, electrical safety, electromagnetic compatibility, and long-term performance in demanding environments. ## Functional Requirements ### Power Conversion The module shall convert input DC power to an isolated DC output suitable for downstream electronic circuits and subsystems. ### Electrical Isolation The module shall provide galvanic isolation between input and output domains to reduce the propagation of electrical noise, ground loops, and fault conditions. ### Operational Stability The module shall maintain stable output characteristics during normal operating conditions and expected load variations. ### System Integration The module shall support integration into embedded, industrial, and communication systems through standard electrical interfaces and assembly practices. ## Electrical Requirements ### Input Characteristics The device shall accept DC input power within the specified operating range and maintain reliable operation throughout normal conditions. ### Output Characteristics The device shall provide regulated isolated output power suitable for electronic loads requiring stable voltage and current delivery. ### Protection Features The design shall incorporate protective characteristics to support safe operation during abnormal electrical conditions and transient events. ### Noise Performance The module shall minimize conducted and radiated electrical noise to support compatibility with sensitive electronic circuits. ## Mechanical Requirements ### Package Construction The module shall utilize a compact package suitable for direct PCB mounting and automated assembly processes. ### Structural Integrity The assembly shall withstand normal handling, installation, transportation, and operational stresses without degradation of performance. ### Maintainability The device shall support replacement and servicing through standard electronic maintenance procedures. ## Environmental Requirements ### Operating Environment The module shall perform reliably within the environmental conditions specified for industrial and commercial electronic applications. ### Storage Conditions The product shall maintain functional integrity during storage and transportation when handled according to recommended practices. ## Quality Requirements ### Reliability The module shall be designed for dependable long-term operation with consistent electrical performance throughout its intended service life. ### Verification Electrical, mechanical, and environmental characteristics shall be validated through applicable inspection, testing, and qualification procedures. ### Compliance The product shall conform to applicable safety, quality, and manufacturing standards relevant to isolated power conversion devices. ## Documentation Requirements Supporting documentation shall include product identification, electrical characteristics, application guidance, installation recommendations, safety information, and maintenance considerations. ## Classification Tags #IR0505S #DCDCConverter #IsolatedPowerSupply #PowerModule #CommonPartsLibrary #IntegratedCircuit #PowerElectronics #ElectronicComponents #ElectricalEngineering #EmbeddedSystems #IndustrialAutomation #PowerManagement #CircuitDesign #PCBDesign #SystemIntegration #EngineeringSpecification #TechnicalDocumentation #ReliabilityEngineering #ElectronicHardware #ComponentLibrary

+/-24V PGA I/P 24-BIT 256KSPS DA The ADAQ7767-1BBCZ is a high-performance, precision data acquisition (DAQ) µModule® system from Analog Devices. It integrates a 24-bit sigma-delta analog-to-digital converter (ADC), signal conditioning, and essential analog front-end components into a compact package. Designed for high accuracy and ease of use, it significantly reduces design complexity, layout effort, and noise sensitivity in precision measurement systems. This device is optimized for applications requiring high resolution, low noise, and excellent DC performance, such as industrial automation, instrumentation, and test equipment. Key Features 24-bit resolution sigma-delta ADC Integrated analog front end (AFE) Low noise, high dynamic range performance Programmable gain amplifier (PGA) Wide input bandwidth Low drift and high linearity SPI-compatible serial interface Internal reference and buffer options Compact system-in-package (SiP) design Electrical Characteristics Resolution: 24 bits Sampling Rate: Up to 256 kSPS (depending on configuration) Input Type: Differential Input Voltage Range: ±VREF (dependent on configuration) Signal-to-Noise Ratio (SNR): ~108 dB (typical) Total Harmonic Distortion (THD): Low distortion performance Reference Voltage: Internal or external supported Power Requirements Analog Supply Voltage (AVDD): 4.5 V to 5.5 V (typical) Digital Supply Voltage (DVDD): 1.8 V to 3.3 V Power Consumption: Optimized for precision applications Interface Communication: SPI-compatible serial interface Data Output: Serial digital output Control: Register-based configuration Package Information Package Type: µModule® (BGA) Package Code: BBCZ Mounting Type: Surface mount Compact footprint for space-constrained designs Operating Conditions Operating Temperature Range: -40°C to +85°C (industrial grade) Storage Temperature Range: -65°C to +150°C Applications Industrial process control Data acquisition systems Precision instrumentation Test and measurement equipment Medical instrumentation Energy monitoring systems Advantages Reduces PCB design complexity Minimizes noise and parasitic effects Factory-optimized signal chain performance Faster time-to-market

Isolated Module DC DC Converter 1 Output 5.1V 6A 9V - 36V Input The TEN 30WIN series is a family of high performance 30W DC/DC converter modules featuring ultra wide 4:1 input voltage ranges in a compact low profile case with industry-standard footprint. Standard features include remote On/Off, output voltage trimming, over voltage protection, under voltage lockout, over temperature and short circuit protection. Typical applications for these products are battery operated equipment and distributed power architectures in communication and industrial electronics, everywhere where isolated, tightly regulated voltages are required and space is limited on the PCB. • 2“ x 1“ x 0.4“ shielded metal package • Ultra wide 4:1 input voltage range • Single- dual- and triple output models • Very high efficiency up to 91 % • Operating temperature range –40 °C to +75 °C • Over temperature protection • I/O isolation 1600 VDC • Remote On/Off • Adjustable output voltage #TRACOPower #TEN302411WIN #DCDCConverter #IsolatedPowerSupply #PowerModule #IndustrialElectronics #EmbeddedSystems #TelecomPower #BatteryPoweredDevices #PowerManagement #ElectronicsDesign #PCBDesign #DCDCModule #WideInputRange #IndustrialAutomation

Connector Header Through Hole 26 position 0.100" (2.54mm) The 827881-1 is a TE Connectivity board-to-board / wire-to-board connector component (AMP series header/socket depending on configuration) designed for reliable electrical interconnection in compact electronic assemblies. It is commonly used in industrial, automotive, and consumer electronic applications where stable signal or power transmission between PCBs or wiring harnesses is required. Key Features Manufacturer: TE Connectivity (AMP) Connector Type: PCB header / receptacle (depends on mating part) Contact Arrangement: Multi-position (varies by variant) Mounting Style: Through-hole or board mount (variant dependent) Contact Material: High-reliability copper alloy with plating for corrosion resistance Current Rating: Suitable for signal-level and moderate power applications (varies by configuration) Voltage Rating: Designed for standard low-voltage electronic systems Durability: High mating cycle life for repeated connections Polarization: Mechanical keying to prevent mismating Locking Feature: Secure retention for vibration resistance Application Areas: Industrial control boards Automotive electronics Communication modules Embedded systems and PCB interconnects #CommonPartsLibrary #Connector

Charger IC Multi-Chemistry 32-QFN (4x4) The BQ25730RSNR is a highly integrated synchronous buck battery charger and system power management IC developed by Texas Instruments for applications requiring efficient charging of multi-cell lithium-ion and lithium-polymer batteries. The device is optimized for USB Type-C, USB Power Delivery, industrial, and portable embedded systems where high charging efficiency, flexible power management, and compact implementation are required. The charger integrates high-side and low-side MOSFET gate drivers along with advanced power path management features, enabling efficient battery charging while simultaneously powering the system load. The architecture supports NVDC power path operation, allowing stable system voltage regulation even when the battery is deeply discharged or absent. The device supports a wide operating input voltage range and programmable charging parameters suitable for various battery chemistries and capacities. Integrated input current optimization and dynamic power management help maximize available adapter power while preventing overload conditions. The BQ25730RSNR communicates with the host processor through an I²C interface, enabling software configuration, telemetry monitoring, and fault management. Internal ADC functionality provides real-time monitoring of charging voltage, current, temperature, and system operating conditions. Its high integration level reduces external component count and PCB area, making it suitable for compact industrial and portable power applications. Electrical Characteristics Wide input voltage operating range compatible with USB PD adapters and industrial power sources. Supports multi-cell lithium-ion and lithium-polymer battery charging configurations. High-efficiency synchronous buck charging architecture. Programmable charge current and charge voltage through digital control interface. Integrated ADC for system telemetry and power monitoring. Dynamic power management optimizes adapter utilization and system stability. Low standby current operation for battery-powered systems. Charging Features Constant current and constant voltage charging modes. Programmable input current limiting for USB and adapter compliance. Battery preconditioning and charge termination functionality. Support for fast charging operation with thermal regulation. Power path management enables simultaneous battery charging and system operation. Automatic recharge and battery maintenance functionality. Protection Features Input overvoltage protection. Battery overvoltage and overcurrent protection. Thermal regulation and thermal shutdown protection. Short-circuit and fault condition protection. Battery temperature monitoring support using external NTC thermistors. Reverse current protection and adapter isolation. Interface and Control I²C serial communication interface for configuration and monitoring. Programmable charging profiles and operating parameters. Interrupt and status reporting capabilities. Integrated telemetry reporting for voltage, current, and temperature measurements. Autonomous operation capability with minimal host intervention. Package Information Package type is WQFN. Compact thermally enhanced surface-mount package. Optimized for automated PCB assembly and high-density layouts. Applications USB Type-C and USB Power Delivery systems. Industrial portable electronics. Embedded computing platforms. Portable medical and instrumentation equipment. Battery-powered industrial controllers. Handheld terminals and data acquisition systems. Portable consumer and commercial electronics. #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Accelerometer X, Y, Z Axis ±2g, 4g 1.5kHz 14-CLCC (6x6) General Description The ADXL354BEZ is a low noise, low drift, low power, 3-axis MEMS accelerometer designed for high precision sensing applications. It provides analog voltage outputs proportional to acceleration along the X, Y, and Z axes. The device is optimized for applications requiring high resolution and long-term stability, including structural health monitoring, condition monitoring, tilt sensing, and seismic measurements. The sensor features excellent temperature stability, minimal offset drift, and selectable measurement ranges. Its very low noise density makes it suitable for vibration analysis and other sensitive measurement environments. Key Features 3-axis MEMS accelerometer with analog outputs Selectable measurement ranges of ±2 g, ±4 g, and ±8 g Ultra-low noise density of approximately 20 µg/√Hz Low offset drift across temperature Low power consumption of approximately 150 µA (typical) High resolution and measurement stability Integrated temperature sensor output Hermetically sealed package for improved environmental robustness Functional Description The ADXL354BEZ measures acceleration using capacitive MEMS sensing elements arranged along three orthogonal axes. When acceleration is applied, the internal sensing structure experiences displacement, causing a change in capacitance. This change is converted into an analog voltage output for each axis. Each axis produces a continuous-time analog signal, allowing direct interfacing with external analog-to-digital converters or signal conditioning circuits. Internal signal conditioning ensures low noise performance and stable output behavior. Electrical Characteristics (Typical) The device operates with a supply voltage ranging from 2.25 V to 3.6 V. Typical supply current during normal operation is approximately 150 µA. The noise density for all three axes is around 20 µg/√Hz. The bandwidth is user selectable and can reach up to approximately 1.5 kHz. The output signals are analog and ratiometric with respect to the supply voltage. Mechanical Characteristics The ADXL354BEZ is housed in a compact leadless chip carrier (LCC) package with approximate dimensions of 5 mm by 5 mm. It is designed for surface-mount installation. The sensing axes are aligned orthogonally to provide accurate three-dimensional acceleration measurement. Performance Characteristics High resolution suitable for precision sensing applications Low temperature coefficient and minimal drift over time High linearity across the full-scale measurement range Excellent long-term stability Low cross-axis sensitivity for improved accuracy Pin Configuration Overview The device includes power supply and ground connections, along with individual analog outputs for each axis labeled XOUT, YOUT, and ZOUT. A self-test pin is provided for functionality verification, and a temperature output pin allows monitoring of internal device temperature. Operating Conditions The device is designed to operate over a temperature range from −40°C to +125°C. Storage temperature ranges from −65°C to +150°C. The recommended supply voltage range is 2.25 V to 3.6 V. Applications Structural health monitoring Industrial condition monitoring Seismic and geophysical sensing Tilt and inclination measurement Platform stabilization systems Vibration analysis Advantages Extremely low noise performance for high sensitivity applications Stable operation across wide temperature ranges Simple analog interface without the need for digital communication protocols Robust packaging suitable for harsh environments Compliance and Reliability The ADXL354BEZ is RoHS compliant and designed for industrial-grade applications. It offers high reliability and long-term performance stability in demanding operating conditions. #commonpartslibrary #sensor #accelerometer

24 Position Receptacle Connector 0.039" (1.00mm) Surface Mount Gold CLM-112-02-L-D-A is a 24-position, dual-row, 1.00 mm pitch surface-mount female socket connector from the Samtec CLM series. It is designed for high-density board-to-board interconnections and features Samtec's Tiger Claw™ dual-wipe contact system, providing reliable electrical performance and secure mating in compact electronic designs. The low-profile construction makes it ideal for space-constrained applications such as embedded systems, industrial controls, communication equipment, and portable electronics. Key Features 1.00 mm pitch, dual-row socket connector 24 positions (2 × 12 contacts) Surface-mount (SMT) termination Low-profile design for compact PCB layouts Tiger Claw™ dual-wipe contacts for enhanced connection reliability Gold-plated contacts for improved conductivity and corrosion resistance Suitable for board-to-board applications Available with multiple plating and packaging options Operating temperature range suitable for industrial environments RoHS compliant and UL recognized Applications Embedded computing systems Industrial automation equipment IoT devices Communication and networking hardware Test and measurement instruments Consumer electronics #Samtec #CLMSeries #BoardToBoardConnector #SMTConnector #FemaleSocket #HighDensityConnector #TigerClawContact #ElectronicsDesign #PCBConnector #EmbeddedSystems #IndustrialElectronics #InterconnectSolutions

Isolated Module DC DC Converter 1 Output 12V 2.5A 9V - 36V Input The TEN 30WIN series is a family of high performance 30W DC/DC converter modules featuring ultra wide 4:1 input voltage ranges in a compact low profile case with industry-standard footprint. Standard features include remote On/Off, output voltage trimming, over voltage protection, under voltage lockout, over temperature and short circuit protection. Typical applications for these products are battery operated equipment and distributed power architectures in communication and industrial electronics, everywhere where isolated, tightly regulated voltages are required and space is limited on the PCB. • 2“ x 1“ x 0.4“ shielded metal package • Ultra wide 4:1 input voltage range • Single- dual- and triple output models • Very high efficiency up to 91 % • Operating temperature range –40 °C to +75 °C • Over temperature protection • I/O isolation 1600 VDC • Remote On/Off • Adjustable output voltage #TRACOPower #TEN302412WIN #DCDCConverter #IsolatedPowerSupply #PowerModule #IndustrialElectronics #EmbeddedSystems #TelecomPower #BatteryPoweredDevices #PowerManagement #ElectronicsDesign #PCBDesign #DCDCModule #WideInputRange #IndustrialAutomation

The A767KN476M1HLAE029 is a surface-mount aluminum electrolytic capacitor designed for bulk energy storage, power supply filtering, ripple current suppression, and voltage stabilization applications. This capacitor utilizes aluminum electrolytic technology to provide high capacitance density in a compact package, making it suitable for modern power management and industrial electronic systems. The device is optimized for applications requiring stable capacitance performance, long operational life, and reliable operation under varying electrical and environmental conditions. It is commonly used in switching power supplies, DC-DC converters, industrial control equipment, communication systems, consumer electronics, and embedded power distribution networks. Its low impedance characteristics and high ripple current capability support efficient power filtering and transient response improvement in electronic circuits. The surface-mount construction enables automated assembly processes and compact PCB integration in high-density designs. Engineering Specification Device Type Aluminum electrolytic capacitor Capacitor Technology Surface-mount aluminum electrolytic construction Capacitance Characteristics High-capacitance energy storage and filtering capability Electrical Characteristics Optimized for power supply filtering and voltage stabilization Impedance Performance Low impedance design for efficient ripple suppression Ripple Current Capability Suitable for high-ripple-current power applications Thermal Characteristics Stable operation across industrial electronic operating conditions Reliability Features Long operational lifetime and robust electrical performance Mounting Style Surface mount technology Package Structure Chip-type aluminum electrolytic capacitor Environmental Characteristics Designed for commercial and industrial electronic environments Applications Switching power supplies DC-DC converters Power management systems Industrial automation Communication equipment Embedded systems Consumer electronics Voltage filtering circuits Energy storage applications Power distribution networks Manufacturer Commonly associated with KEMET aluminum electrolytic capacitor product families #commonpartslibrary #electrolyticcapacitor #aluminumcapacitor #passivecomponents #powerelectronics #powersupply #filtercapacitor #energystorage #surfaceountcomponents #embeddedhardware #electronicsdesign #dcdcconverter #industrialelectronics #powermanagement #ripplefiltering

11 Position Connector Receptacle, Outer Shroud Contacts Surface Mount Gold or Gold, GXT™ 91921-31111LF is a 1.00 mm pitch board-to-board mezzanine connector from the Conan™ / MezzSelect™ series by Amphenol ICC. It is an 11-position vertical receptacle designed for compact, high-density PCB interconnect applications such as embedded systems, industrial electronics, and compact computing devices. Key Features 1.00 mm fine-pitch board-to-board connector 11-position vertical receptacle Surface-mount (SMT) termination Dual-row configuration Gold/GXT™ contact plating for reliable electrical performance Multiple stacking height support (4.15 mm to 7.52 mm) Solder retention tabs for improved mechanical stability Operating temperature range: −55 °C to +125 °C Current rating: 1 A per contact Designed for industrial and compact embedded applications Compatible with IR reflow and vapor-phase soldering processes RoHS compliant and low-halogen material construction Typical Applications Embedded computing modules Industrial control boards Compact SBCs and SOMs Communication equipment Consumer electronics requiring low-profile mezzanine interconnects

Pressure Sensor +/-0.22PSI (+/-1.5kPa) Differential Male - 0.08\" (2.00mm) Tube, Dual 16 b 16-SMD Module, Dual Top Ports The SDP33-1500Pa-TR-250PCS is a digital differential pressure sensor module from Sensirion AG, designed for high-precision measurement of low-pressure differences up to ±1500 Pa (±1.5 kPa). It belongs to the SDP3x series, which uses Sensirion’s CMOSens® technology for compact, accurate, and stable sensing performance. It is widely used in HVAC systems, airflow measurement, medical devices, and industrial control applications where precise air or gas flow monitoring is required. Key Features Differential Pressure Measurement Range: ±1500 Pa (±1.5 kPa) Digital Output Interface I²C communication for easy MCU integration High Resolution 16-bit digital output Accurate & Stable Performance Factory-calibrated and temperature compensated No zero-point drift Low Power Consumption Designed for battery-powered and embedded systems Compact SMD Module Small footprint, surface-mount package (easy PCB integration) Fast Response Time Suitable for real-time airflow and pressure monitoring Wide Operating Conditions Supply voltage: ~3.3V Operating temperature: -40°C to +85°C Reflow Solderable Compatible with standard SMT manufacturing processes Reliable Long-Term Stability Built for high-volume industrial and commercial applications Typical Applications HVAC airflow and filter monitoring Ventilation and air quality systems Medical respiratory devices Industrial automation and process control Drones and airspeed (pitot tube systems) IoT environmental sensing #CommonPartsLibrary #Sensor

Pin Receptacle Connector 0.037" ~ 0.043" (0.94mm ~ 1.09mm) No Tail Surface Mount The 6628-0-18-15-18-27-10-0 is a surface-mount receptacle connector manufactured by Mill-Max Manufacturing Corp.. This component is designed to provide a reliable board-level interconnect solution for applications requiring compact, high-density signal routing. The connector utilizes precision-machined contacts to ensure excellent electrical performance, mechanical durability, and long-term mating reliability. The device features a low-profile surface-mount configuration optimized for automated assembly processes and space-constrained electronic designs. Its rugged construction supports repeated insertion and removal cycles while maintaining consistent contact integrity. The connector is suitable for embedded systems, communication equipment, industrial electronics, instrumentation, prototyping platforms, and custom board-to-board interface applications. The receptacle incorporates high-quality conductive materials and plated contact surfaces to minimize contact resistance and enhance corrosion resistance. The SMT mounting style enables efficient PCB integration while supporting robust mechanical attachment during operation and handling. General Description The 6628-0-18-15-18-27-10-0 is a precision-machined surface-mount receptacle connector intended for high-reliability electronic interconnections. It offers dependable electrical contact, compact footprint characteristics, and excellent mechanical stability for demanding applications. The connector is commonly used where reliable signal transmission, ease of assembly, and long service life are essential design requirements. Its precision socket architecture makes it suitable for mating with compatible pin headers and custom interconnect systems while supporting modern automated manufacturing environments. #MillMax #Connector #Receptacle #SMTConnector #BoardToBoard #ElectronicInterconnect #SurfaceMount #PrecisionMachined #EmbeddedSystems #IndustrialElectronics #PCBDesign #HardwareEngineering #ElectronicComponents

Air Quality Sensor CO2 Sensor 2.5V/3.3V/5V 20-Pin SMD EP T/R The SCD41-D-R1 is a miniature photoacoustic carbon dioxide sensor module developed by Sensirion for high-accuracy environmental sensing applications. The device integrates a CO₂ sensing element, temperature sensor, humidity sensor, optical components, calibration memory, and digital signal processing into a compact surface-mount package suitable for embedded systems and portable electronics. The sensor utilizes photoacoustic sensing technology to provide precise carbon dioxide concentration measurements while maintaining low power consumption and long-term stability. Integrated humidity and temperature sensing capabilities enable environmental compensation and simplify system integration by reducing the need for external sensors. The SCD41 communicates through a standard I²C digital interface and supports automatic self-calibration functions for reliable long-term operation. Its compact footprint and low energy requirements make it suitable for battery-powered devices, smart building systems, HVAC equipment, indoor air quality monitoring systems, and IoT applications. The module is factory calibrated and designed for continuous monitoring of indoor air quality conditions. The integrated architecture minimizes external component requirements while enabling accurate sensing performance across a wide operating range. Key Features Photoacoustic CO₂ sensing technology Integrated temperature and humidity sensing High accuracy carbon dioxide measurement I²C digital communication interface Low power consumption operation Automatic self-calibration support Compact surface-mount package Factory calibrated output Long-term measurement stability Optimized for indoor air quality applications Low-profile PCB mounting design RoHS and halogen-free compliant Electrical Characteristics Low-voltage supply operation Low average current consumption suitable for portable devices Integrated digital signal processing Non-volatile calibration memory Standard I²C communication compatibility Stable operation across industrial environmental conditions Mechanical Characteristics Compact SMD package for space-constrained applications Surface-mount assembly compatible Low-profile package structure Integrated optical cavity and sensing chamber Moisture-sensitive device requiring controlled handling during assembly Functional Characteristics Real-time carbon dioxide concentration monitoring Simultaneous temperature and humidity measurement Automatic environmental compensation Continuous and periodic measurement modes Fast startup and measurement response Long operational lifetime with stable calibration Optimized airflow design for accurate sensing Suitable for continuous indoor environmental monitoring Typical Applications Indoor air quality monitoring systems Smart thermostats and HVAC controllers Building automation equipment Demand-controlled ventilation systems Portable environmental monitoring devices Smart home and IoT products Air purification systems Occupancy and ventilation monitoring Battery-powered sensing devices Consumer and industrial environmental monitoring equipment #commonpartslibrary #sensor #airquality

Laminated Core 1.1VA Power Transformer 115V Primary Parallel 6.3V, Series 12.6V Secondary Parallel 180mA, Series 90mA Through Hole The F12-090-C2 specification defines the engineering requirements for an electronic connector component intended to provide reliable electrical interconnection between printed circuit boards, cable assemblies, or electronic subsystems. This specification establishes the functional, mechanical, electrical, environmental, and quality requirements necessary to ensure dependable signal transmission, secure mechanical engagement, and long-term operational reliability. The component is intended for use in embedded, industrial, communication, and electronic control systems where compact interconnect solutions and consistent electrical performance are required. The connector is designed to support repeated mating cycles while maintaining low contact resistance, stable mechanical retention, and compatibility with standard electronic assembly processes. Engineering Requirements The connector shall be manufactured using precision-formed conductive contacts and high-strength insulating materials to ensure consistent electrical conductivity, mechanical durability, and long service life. The construction shall support reliable mating and unmating operations without degradation of contact performance. Electrical characteristics shall provide low contact resistance, stable signal integrity, and reliable current-carrying capability within the specified operating conditions. The connector shall maintain electrical continuity under vibration, thermal cycling, and environmental exposure encountered during normal operation. Mechanical construction shall ensure accurate alignment of mating interfaces, secure retention, and resistance to mechanical wear resulting from repeated insertion and removal. The housing and contact system shall withstand normal handling and assembly processes without deformation or structural damage. Workmanship shall be free from defects including contamination, cracks, corrosion, plating irregularities, or mechanical deformation that could adversely affect electrical or mechanical performance. Inspection, validation, and testing shall be conducted using calibrated equipment and controlled quality procedures to verify compliance with engineering requirements. Any deviation from this specification shall require formal engineering evaluation, documented technical justification, and approval through the established engineering change control process prior to implementation. Documentation Supporting documentation shall include engineering drawings, material specifications, electrical performance data, inspection records, qualification reports, and revision-controlled manufacturing documentation. All documentation shall be maintained under formal configuration management and quality assurance systems to ensure complete product traceability. Revision Control Any modification to this specification shall be processed through the formal engineering change management system. All revisions shall undergo technical review, validation, and approval before release to ensure continued compliance with design intent and applicable industry standards. #EngineeringSpecification #Connector #ElectronicInterconnect #SignalIntegrity #EmbeddedSystems #IndustrialElectronics #ElectricalEngineering #Manufacturing #QualityAssurance #EngineeringDocumentation

2 Channel AFE 16 Bit 24-UQFN (4x4) The AFE881H1RRUR is a highly integrated analog front-end (AFE) designed for multi-channel data acquisition systems. It combines precision analog signal conditioning with high-speed analog-to-digital conversion, making it suitable for applications such as medical instrumentation, industrial measurement, and test and measurement equipment. The device integrates low-noise amplifiers, programmable gain stages, anti-aliasing filters, and high-resolution ADCs into a compact package, reducing system complexity and board space. Key Features Multi-channel analog front-end integration High-resolution analog-to-digital conversion Low-noise input stage for precision measurements Programmable gain amplifier (PGA) Integrated anti-aliasing filters High sampling rate capability Serial digital interface (SPI-compatible) Low power consumption for portable systems Compact surface-mount package Electrical Characteristics (Typical – refer to datasheet for exact values) Supply Voltage: ~1.8 V to 3.3 V (analog/digital domains) Input Voltage Range: Dependent on configuration Resolution: Up to 16-bit or higher (device dependent) Sampling Rate: Up to several MSPS (depending on mode) Power Consumption: Optimized for performance/power balance Functional Blocks Low-noise input buffer Programmable gain amplifier (PGA) Anti-aliasing filter High-speed ADC core Digital control interface (SPI) Clock management circuitry Package Information Package Type: QFN / VQFN (exact variant per TI RRU package code) Mounting Type: Surface Mount Pin Count: Typically 40+ pins (refer to datasheet for exact count) Applications Medical imaging and instrumentation Industrial data acquisition systems Oscilloscopes and test equipment Communication systems Precision sensor interfaces Advantages High integration reduces external components Improved signal integrity due to low-noise design Flexible configuration via programmable gain Compact footprint for dense PCB layouts Notes Exact electrical parameters, pin configuration, and performance metrics must be verified in the official Texas Instruments datasheet. Proper PCB layout (grounding, shielding, and decoupling) is critical for optimal performance. #commonpartslibrary #integratedcircuit

Battery Fuel Gauge IC Multi-Chemistry 32-QFN (4x4) The BQ41Z50RSNR is a highly integrated battery fuel gauge and battery management IC designed for single-cell and multi-cell lithium-ion and lithium-polymer battery packs. It provides accurate battery monitoring, protection, authentication, and state estimation functions for portable, industrial, and embedded power applications. The device incorporates advanced Impedance Track™ fuel gauging technology to deliver precise state-of-charge, state-of-health, and runtime predictions across varying operating conditions and battery aging profiles. The device integrates battery protection features including overvoltage, undervoltage, overcurrent, short-circuit, and temperature monitoring to enhance system safety and reliability. It supports SMBus and I²C communication interfaces for host processor interaction and system diagnostics. Internal flash memory allows programmable configuration parameters, calibration data, and battery profile storage. The BQ41Z50RSNR is optimized for compact battery-powered systems requiring accurate fuel gauging, low power consumption, and robust battery protection capabilities. Typical applications include notebooks, handheld devices, industrial instruments, portable medical equipment, smart battery packs, and embedded rechargeable systems. Engineering Specification Device Type Battery Fuel Gauge and Battery Management IC Battery Chemistry Support Lithium-Ion and Lithium-Polymer Cell Configuration Supports multi-cell battery pack configurations Fuel Gauging Technology Impedance Track™ battery fuel gauging Integrated Functions Battery monitoring State-of-charge estimation State-of-health estimation Remaining runtime prediction Battery protection Cell balancing support Authentication support Temperature monitoring Data logging and diagnostics Protection Features Overvoltage protection Undervoltage protection Overcurrent protection Short-circuit protection Charge and discharge protection Thermal protection Communication Interface SMBus compatible I²C compatible interface Non-Volatile Memory Integrated flash memory for configuration and battery profile storage Measurement Functions Battery voltage measurement Current measurement Temperature sensing Capacity tracking Cycle count monitoring Operating Voltage Designed for rechargeable battery pack applications Power Consumption Low-power operation optimized for portable devices Package Type QFN package Mounting Type Surface-mount device Operating Temperature Range Industrial operating temperature range suitable for portable and embedded applications Typical Applications Smart battery packs Portable electronics Industrial handheld equipment Medical portable devices Rechargeable embedded systems Battery-powered instrumentation #commonpartslibrary #integratedcircuit #powermanagement

Connector Header Surface Mount 12 position 0.049" (1.25mm) 53398-1271 The 0533981271 is a board-to-wire connector assembly component designed to provide a reliable electrical and mechanical interface between a printed circuit board and discrete wire harnesses. It belongs to a compact connector system intended for applications requiring secure mating, efficient signal transmission, and ease of assembly. The component is engineered to support consistent electrical contact performance while maintaining a small footprint suitable for space-constrained designs. Its construction ensures dependable connectivity under typical operating conditions encountered in consumer electronics, industrial equipment, and embedded systems. Functional Description This connector component serves as part of a modular interconnect system, enabling termination of wires and subsequent mating to a corresponding board-mounted header. It provides stable retention and alignment during mating and unmating operations, ensuring consistent electrical continuity. The design supports straightforward integration into automated or manual assembly processes, facilitating efficient production workflows. Contact geometry and housing features are optimized to maintain reliable engagement and minimize the risk of intermittent connections. Electrical Characteristics The component is designed to support low-voltage signal and power transmission in compact electronic systems. It provides low contact resistance to ensure efficient current flow and stable signal integrity. Insulation materials are selected to maintain dielectric performance and prevent leakage under normal operating conditions. The connector system is suitable for typical electronic applications where consistent and reliable electrical performance is required. Mechanical Characteristics The connector features a durable housing constructed from engineered thermoplastic material, providing mechanical strength and resistance to environmental stress. Contact elements are formed from conductive alloys and finished to enhance conductivity and corrosion resistance. The design includes features that promote secure mating retention and proper alignment, reducing wear and ensuring longevity over repeated use. Its compact form factor supports high-density layouts on printed circuit boards. Environmental Characteristics The component is designed to operate reliably within standard environmental conditions encountered in electronic equipment. Materials used in the housing and contacts are selected for thermal stability and resistance to common environmental factors such as humidity and mechanical vibration. The connector system maintains performance over typical temperature ranges associated with consumer and industrial applications. Applications This connector is intended for use in electronic systems requiring compact and reliable wire-to-board interconnection. Common applications include consumer devices, industrial control systems, embedded modules, and communication equipment where dependable signal or power connectivity is essential. Summary The 0533981271 from Molex is a compact and reliable connector solution for board-to-wire applications. It offers consistent electrical performance, robust mechanical design, and ease of integration, making it well suited for modern electronic assemblies requiring dependable interconnect solutions. #commonpartslibrary #connector #header

17 Position FFC, FPC Connector Contacts, Bottom 0.020" (0.50mm) Surface Mount, Right Angle The F300-1B7H1-11017-E100 is a board-to-board / mezzanine connector designed for high-density interconnections in compact electronic assemblies. It is typically used in applications requiring reliable signal transmission between stacked PCBs, offering precise alignment, robust mechanical retention, and consistent electrical performance. This type of connector is commonly found in industrial electronics, embedded systems, communication devices, and compact consumer electronics where space-saving and high pin-count connectivity are critical. Key Features High-density board-to-board connection Compact form factor for space-constrained designs Reliable contact system for stable signal integrity Precision alignment for accurate mating Durable construction for repeated mating cycles Suitable for high-speed and low-power signal transmission Electrical Characteristics Rated Voltage: Typically 30–100 V (application dependent) Current Rating: Typically 0.3–1.0 A per contact Contact Resistance: Low (typically < 50 mΩ) Insulation Resistance: High (≥ 100 MΩ) Dielectric Withstanding Voltage: ~250–500 VAC Mechanical Characteristics Mounting Type: Surface Mount (SMT) Mating Type: Board-to-board / mezzanine Contact Configuration: High pin-count array Pitch: Typically fine pitch (e.g., 0.3 mm – 0.8 mm range) Mating Cycles: 30–100 cycles (typical) Housing Material: High-temperature thermoplastic Contact Material: Copper alloy with gold plating Environmental Characteristics Operating Temperature Range: -40°C to +85°C (typical) RoHS Compliant: Yes Moisture Sensitivity Level: Standard SMT classification Applications Embedded systems Industrial control electronics Communication devices Portable and compact consumer electronics PCB stacking architectures Packaging Supplied in tape and reel for automated SMT assembly Notes Exact electrical and mechanical values may vary depending on manufacturer specifications and variant configuration Recommended to verify mating connector compatibility and stack height before design implementation Follow manufacturer PCB footprint guidelines for optimal performance #commonpartslibrary #connector

4.7 µH Unshielded Drum Core, Wirewound Inductor 62 A 0.95mOhm Max Vertical, 2 PC Pin The IHDM1008BCEV4R7M30 is a surface-mount power inductor designed for energy storage and filtering in switching power supplies and DC-DC converter circuits. It provides stable inductance characteristics under varying current conditions, making it suitable for applications requiring efficient power conversion and noise suppression. The device is constructed using a magnetically shielded structure to minimize electromagnetic interference and ensure reliable operation in densely populated circuit environments. Its design supports high current handling capability while maintaining low core losses, contributing to overall system efficiency. Functional Overview The inductor stores energy in its magnetic field when current flows through it and releases that energy when the current changes. This behavior is essential for smoothing current in switching regulators and maintaining stable voltage levels in power circuits. Its low resistance winding helps reduce power loss, while the magnetic shielding limits flux leakage, improving performance in sensitive electronic systems. The component is optimized for high-frequency operation typically found in modern power management designs. Electrical Characteristics The device provides a fixed inductance value with stable performance across a range of operating currents. It supports relatively high saturation current levels, allowing it to function effectively in power circuits without significant degradation of inductance. Low direct current resistance contributes to improved efficiency and reduced heat generation. The inductor is designed to maintain consistent electrical behavior across typical operating temperatures and frequencies used in switching applications. Interface Requirements The component features standard surface-mount terminals for direct placement onto printed circuit boards. Proper soldering and pad design are required to ensure mechanical stability and optimal electrical performance. Placement considerations should include minimizing loop area and proximity to switching elements to reduce noise and maximize efficiency. Operating Conditions The inductor is intended for operation across a wide temperature range suitable for consumer and industrial electronics. It is capable of maintaining performance under continuous load conditions and varying thermal environments. Adequate thermal management and airflow may be necessary in high-current applications to prevent excessive temperature rise. Protection and Reliability Features The device is constructed with durable materials to ensure long-term reliability under electrical and thermal stress. Its magnetically shielded design reduces susceptibility to external interference and limits emissions that could affect nearby components. It is designed to withstand standard handling and soldering processes associated with surface-mount assembly. Packaging and Integration The IHDM1008BCEV4R7M30 is provided in a compact surface-mount package optimized for automated assembly processes. Its form factor allows efficient use of board space while supporting high-performance power designs. The package design ensures secure mounting and consistent electrical contact in high-density circuit layouts. Applications Typical applications include DC-DC converters, voltage regulator modules, power management circuits, filtering stages, and energy storage elements in portable devices, industrial equipment, and communication systems. #commonpartslibrary #inductors

Pressure Sensor 4.35PSI ~ 18.13PSI (30kPa ~ 125kPa) 9-LGA The BMP585 is a high-precision digital barometric pressure sensor designed for accurate altitude and environmental pressure measurement in compact, low-power embedded systems. It integrates a MEMS sensing element with advanced signal conditioning and digital compensation circuitry to provide highly stable and reliable pressure and temperature data across a wide operating range. The device is optimized for portable electronics, industrial sensing, indoor navigation, weather monitoring, drones, and IoT applications requiring precise atmospheric measurements. The sensor supports digital communication through standard serial interfaces, enabling straightforward integration with modern microcontrollers and processors. Its low noise performance, high resolution, and fast response characteristics make it suitable for applications involving motion tracking, vertical positioning, and environmental monitoring. The compact surface-mount package allows efficient PCB layout integration in space-constrained designs. The BMP585 incorporates configurable sampling, filtering, and power management features to balance measurement accuracy, bandwidth, and energy consumption. Internal calibration and compensation algorithms reduce system-level complexity while improving long-term stability and measurement consistency. The device is designed for robust operation under varying environmental conditions and supports low-power modes for battery-operated systems. Engineering Specification Device Type Digital barometric pressure and temperature sensor Sensor Functions Atmospheric pressure sensing Temperature sensing Altitude estimation support Pressure Measurement High-resolution MEMS pressure sensing element Integrated digital compensation and calibration Low-noise pressure measurement architecture Temperature Measurement Integrated temperature sensing for environmental monitoring and pressure compensation Communication Interface I²C interface support SPI interface support Power Features Low-power operation Configurable performance and sampling modes Sleep and standby operating capability Signal Processing Integrated digital filtering Configurable oversampling Internal compensation engine Package Information Compact surface-mount package RoHS-compliant construction Operating Characteristics High measurement stability Fast response time Designed for portable and industrial environments Application Areas Wearable devices Indoor navigation systems Portable weather stations Industrial monitoring IoT sensing nodes Drones and altitude tracking systems Consumer electronics #commonpartslibrary #integratedcircuit #pressuresensor

Dual-channel I2C digital isolator, Bidirectional communication, 3V/5V level translation, SOIC-8 Dual-channel digital isolator I2C SOIC*3.9x4.9mm*P1.27mm*

CH32V003 series is an industrial-grade general-purpose microcontroller designed based on QingKe RISC-V2A core, which supports 48MHz system main frequency in the product function. The series features wide voltage, single-wire serial debug interface, low-power consumption and ultra-small package. It provides commonly used peripheral functions, built-in 1 group of DMA controller, 1 group of 10-bit analog-to-digital conversion ADC, 1 group of op-amp comparator, multiple timers, standard communication interfaces such as USART, I2C, SPI, etc. The rated operating voltage of the product is 3.3V or 5V, and the operating temperature range is -40℃～85℃ industrial- grade. #CommonPartsLibrary #Microcontroller #CH32V003F4P6.

3.5x3.7×1.9 mm, 0.25 W intelligent externally controlled surface-mount device (SMD) type LED SK6812MINIRGBW-NW-P6 is a smart, addressable RGBW LED that integrates red, green, blue, and neutral white (NW) LEDs with a built-in control IC in a compact SMD package. Each LED acts as an individually addressable pixel, allowing precise color and brightness control through a single-wire digital interface. It is commonly used in RGBW lighting effects, backlighting, gaming peripherals, custom keyboards, LED displays, wearables, and decorative lighting applications. Key Features Individually addressable RGB + Neutral White (RGBW) LED Built-in intelligent control IC and constant-current driver Single-wire serial communication interface 32-bit color data (RGBW control) Cascadable design for long LED chains Integrated signal reshaping for reliable data transmission Operating voltage: 3.5V to 5.5V Typical data transmission rate: 800 kbps 256-level grayscale PWM dimming per channel Compact 3.7 mm × 3.5 mm SMD-6 package Built-in power-on reset circuit Wide operating temperature range: -40°C to +85°C Suitable for animations, indicators, displays, and smart lighting applications. #SK6812MINIRGBW #SK6812 #RGBWLED #AddressableLED #SmartLED #NeutralWhiteLED #DigitalLED #PixelLED #LEDLighting #EmbeddedSystems #PCBDesign #IoT #Electronics #LEDDisplay #LightingControl