Ultra-Low-Power Voltage Supervisor (Reset IC) – Single-channel voltage supervisor designed for microcontrollers, processors, IoT devices, industrial control systems, automotive electronics, battery-powered equipment, and embedded systems requiring reliable power-on reset and brownout detection. The Texas Instruments TLV803EA30DBZR monitors a 3.0 V supply rail with a 3.08 V reset threshold, providing an active-low open-drain RESET output to ensure proper system initialization and recovery during undervoltage conditions. Features 250 nA typical quiescent current, 130 ms minimum reset timeout, supply voltage operation from 0.7 V to 6 V, and open-drain output for easy interfacing with multiple voltage domains. Includes power-on reset, brownout protection, and low-power operation, making it ideal for energy-efficient embedded applications. Operates over a −40°C to +125°C temperature range and is housed in a compact 3-pin SOT-23 (DBZ) package for surface-mount designs. #TexasInstruments #TLV803EA30DBZR #TLV803E #VoltageSupervisor #ResetIC #PowerOnReset #BrownoutDetection #LowPower #OpenDrain #PowerManagement #EmbeddedSystems #IndustrialElectronics

Accelerometer X, Y, Z Axis ±5g 1.6kHz (X,Y), 550Hz (Z) 16-LFCSP-LQ (4x4) The ADXL325 is a small, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of ±5 g. It can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration, resulting from motion, shock, or vibration. The user selects the bandwidth of the accelerometer using the CX, CY, and CZ capacitors at the XOUT, YOUT, and ZOUT pins. Bandwidths can be selected to suit the application with a range of 0.5 Hz to 1600 Hz for X and Y axes and a range of 0.5 Hz to 550 Hz for the Z axis. The ADXL325 is available in a small, low profile, 4 mm × 4 mm × 1.45 mm, 16-lead, plastic lead frame chip scale package (LFCSP_LQ). 3-axis sensing Small, low profile package 4 mm × 4 mm × 1.45 mm LFCSP Low power: 350 μA typical Single-supply operation: 1.8 V to 3.6 V 10,000 g shock survival Excellent temperature stability Bandwidth adjustment with a single capacitor per axis RoHS/WEEE lead-free compliant #CommonPartsLibrary #Sensor #Transducer #Motion-Sensor #Accelerometer #ADXL325

Supervisor Open Drain or Open Collector 1 Channel SOT-23-3 The MCP120T-450I/TT is a microcontroller supervisory (voltage reset) IC from Microchip Technology designed to monitor the system supply voltage and ensure reliable startup and operation of microcontroller-based systems. It keeps the microcontroller in the reset state until the supply voltage reaches a safe operating level and automatically asserts a reset signal if the supply voltage falls below the preset threshold, protecting the system from brown-out and power-failure conditions. The device features an open-drain active-low RESET output, a 4.375 V threshold, and is housed in a compact SOT-23-3 package, making it suitable for space-constrained embedded applications. Key Features Monitors a single supply voltage with a 4.375 V reset threshold Open-drain, active-low RESET output Holds the microcontroller in reset during power-up until VDD is stable Automatically resets the system during brown-out or power-loss events 150 ms minimum reset timeout after VDD exceeds the threshold Supports 3 V, 3.3 V, and 5 V system supervision Low operating current (typically 45 µA) Wide operating temperature range: −40°C to +85°C Compact SOT-23-3 surface-mount package Hashtags #Microchip #MCP120 #VoltageSupervisor #ResetIC #BrownOutProtection #PowerOnReset #PMIC #EmbeddedSystems #Microcontroller #SOT23 #PowerManagement #CircuitProtection

Battery Power Management IC Lithium Ion/Polymer 24-QFN (4x4) nPM1100 is an integrated Power Management IC (PMIC) with a linear-mode lithium-ion/lithium-polymer battery charger in a compact 2.1x2.1 mm WLCSP package. It has a highly efficient, dual-mode configurable output DC/DC buck regulator. nPM1100 is an extremely compact PMIC device, created for space constrained applications with a small lithium-ion or lithium-polymer battery. It is compatible with all nRF52 and nRF53 Series SoCs and supports charging batteries at up to 500 mA through USB, and also delivers up to 150 mA of current to power external components with regulated voltage. A minimum of five passive components are required for operation and the device functions without a control interface. It is the perfect companion for nRF52 and nRF53 multiprotocol SoCs in battery powered designs. Low quiescent current (IQ) extends battery life during shipping and storage with Ship mode, or in operation using auto-controlled hysteretic buck mode for high efficiency down to 1 µA loads. Charge and error indication LED drivers are built in. Charge profile limits are configurable and VBUS current limits can be fixed or auto-controlled with on-chip USB port detection. • 400 mA linear battery charger • Linear charger for lithium-ion/lithium-polymer batteries • Adjustable charge current from 20 mA to 400 mA • Selectable termination voltage of 4.1 V or 4.2 V • Automatic trickle, constant current, and constant voltage charging • Battery thermal protection • Discharge current limitation • JEITA compliant • Li-ion/Li-polymer USB battery charger with a high efficiency buck regulator • 800 nA - Typical quiescent current • 460 nA - Shipping mode quiescent current • Thermal protection • Input regulator • USB compatible current limit of 100 mA and 500 mA • 4.1 V to 6.7 V input voltage range for normal operation • 20 V overvoltage protection • Reverse current protection • 3.0 V to 5.5 V system voltage output • USB port detection supporting the following types: • SDP • CDP/DCP • 1.8 V to 3.0 V, 150 mA step-down buck regulator • Step-down buck regulator with up to 92% efficiency • Automatic transition between hysteretic and pulse width modulation (PWM) modes • Forced PWM mode for clean power operation • Pin-selectable output voltage (1.8 V, 2.1 V, 2.7 V, 3.0 V) • Soft start-up • LED drivers for charger state indication • 5 mA low side LED driver for charging indication • 5 mA low side LED driver for error indication • 2.3 V to 4.35 V battery operating input range • 2.1x2.1 mm WLCSP package • Suitable for two layer PCB design #CommonPartsLibrary #IntegratedCircuit #NordicSemiconductor #nPM1100 #PMIC #BatteryCharger #PowerManagement #LiIon #LiPolymer #BuckConverter #Wearables #IoT #WirelessSensor #LowPowerDesign #USBCharging #EmbeddedSystems #nRF52 #nRF53 #PortableElectronics

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

Solid State Hall Effect Sensors High Performance Miniature Ratiometric Linear Hall Effect Sensor Single Axis Radial Lead #CommonPartsLibrary #IntegratedCircuit #Sensor #Transducer #Magnetic-Sensor #Compass #SS490

Automotive 6.6 kW Surface-Mount TVS Diode – Unidirectional transient voltage suppressor (TVS) diode designed for automotive electronics, industrial power supplies, DC power rails, telecom equipment, battery protection, load dump suppression, and embedded circuit protection applications. The Littelfuse SM8S33A features a 33 V reverse standoff voltage (VRWM), 36.7 V minimum breakdown voltage, and 53.3 V maximum clamping voltage at a 132 A peak pulse current (10/1000 µs). Rated for 6.6 kW peak pulse power dissipation, it provides robust protection against ESD, lightning-induced surges, inductive switching transients, and automotive load dump events. Features AEC-Q101 qualification, low leakage current (2 µA typical), fast response time, and high surge capability for demanding environments. Packaged in a SMTO-263 (DO-218AB-compatible) surface-mount package, it operates over a −55°C to +175°C junction temperature range, making it ideal for high-reliability automotive and industrial designs. #Littelfuse #SM8S33A #TVSDiode #TransientVoltageSuppressor #CircuitProtection #ESDProtection #SurgeProtection #LoadDumpProtection #AECQ101 #AutomotiveElectronics #IndustrialElectronics #EmbeddedSystems

Miniature PCB Relay 24VDC, 10A 250VAC, 15A 125VAC, 10A 250VAC #CommonPartsLibrary #Relay

Ultra-Low Capacitance Quad-Channel ESD Protection Array – Four-channel rail-to-rail transient voltage suppressor (TVS) / ESD protection array designed to protect high-speed data and communication interfaces including USB 2.0, HDMI, DVI, Ethernet, mobile devices, and embedded systems from electrostatic discharge (ESD) and transient overvoltage events. Features ultra-low 1 pF input/output capacitance to preserve signal integrity on high-speed lines, 6 V minimum breakdown voltage, and IEC 61000-4-2 Level 4 ESD protection (±8 kV contact discharge) with very low clamping voltage through an integrated rail-to-rail steering diode architecture. Includes four unidirectional protection channels, low reverse leakage current, and AEC-Q101 qualification for automotive applications. Specified for operation over a −55°C to +150°C ambient temperature range and housed in a compact 6-pin TSOP (SOT-457 / SC-74) surface-mount package. #Nexperia #PRTR5V0U4D125 #PRTR5V0U4D #TVSDiode #ESDProtection #TransientProtection #USBProtection #HDMIProtection #DVISProtection #HighSpeedInterface #AutomotiveElectronics #EmbeddedSystems

Yellow 588nm LED Indication - Discrete 2.1V Radial ellow Through-Hole LED for status indication and general-purpose illumination, featuring a 3 mm (T-1) diffused package with a GaAsP/GaP yellow emitter. It operates at a forward voltage of 1.95 V typ. (2.4 V max.) at 10 mA, provides 8 mcd minimum and 15 mcd typical luminous intensity at 10 mA, has a 50° viewing angle, and a 588 nm dominant wavelength (590 nm peak). The device supports a maximum continuous forward current of 30 mA and operates over an ambient temperature range of -40°C to +85°C. #YellowLED #ThroughHoleLED #3mmLED #T1LED #DiffusedLED #GaAsPGaP #IndicatorLED #StatusIndicator #Kingbright #Optoelectronics #CommonPartsLibrary #Optoelectronics #LED #SMD

Automotive Smart High-Side Power Switch – Single-channel N-channel smart high-side power switch for automotive power distribution and wire harness protection. Operates from a 4.1 V to 28 V supply (2.75 V minimum during cranking), supports a 15.7 A nominal load current, and features an ultra-low 3.6 mΩ typical RDS(on). Includes adjustable overcurrent protection (24 A to 137.5 A), integrated I²t wire protection, analog current sensing, open-load detection (ON/OFF state), short-circuit protection, reverse battery protection, overvoltage protection, undervoltage lockout (UVLO), overtemperature protection, slew-rate control, and logic-level control input. Qualified to AEC-Q100 and ISO 26262-compliant, it operates over a −40°C to +150°C junction temperature range and is housed in a 14-pin PG-TSDSO exposed-pad package. #Infineon #BTG7003A1EPWXUMA1 #PROFET #HighSideSwitch #SmartPowerSwitch #Automotive #PowerDistribution #LoadDriver #CurrentSense #WireProtection #AECQ100 #ISO26262 #EmbeddedSystems

3.9 nH Unshielded Wirewound Inductor 700 mA 80mOhm Max 0603 (1608 Metric) ## Engineering Specification ## General Description The **0603CS-3N9XJRW** is a Coilcraft **0603CS series ceramic-core chip inductor** designed for RF, microwave, and high-frequency circuit applications. It provides low-value inductance in a compact surface-mount package and is suitable for impedance matching, RF filtering, tuning networks, resonant circuits, and general high-frequency signal-path designs. The component is commonly used in wireless modules, RF front-end circuits, communication equipment, test hardware, and compact printed circuit board assemblies requiring stable high-frequency inductive performance. ## Device Identification Manufacturer Part Number: **0603CS-3N9XJRW** Manufacturer: **Coilcraft** Product Series: **0603CS** Device Category: **Passive Electronic Component** Device Type: **Fixed Inductor** Inductor Type: **RF Chip Inductor** Construction Type: **Unshielded Wirewound Ceramic-Core Inductor** Mounting Type: **Surface Mount** ## Functional Description The device functions as a fixed-value RF inductor used to store magnetic energy and provide frequency-dependent impedance in electronic circuits. It is designed for high-frequency performance where low inductance value, compact size, and predictable RF behavior are required. The component can be used in matching networks, RF filters, oscillators, resonant circuits, and signal conditioning paths. ## Electrical Description The inductor has a nominal inductance of **three point nine nanohenries** with **five percent tolerance**. It is rated for **seven hundred milliamps** current and has a maximum DC resistance of **eighty milliohms**. The part provides a minimum self-resonant frequency of **six point nine gigahertz** and a minimum Q value suitable for RF circuit applications. It should be operated within the manufacturer’s specified current, temperature, and electrical limits. ## Mechanical Description The component is supplied in an **0603 surface-mount package**, also known as **1608 metric size**. It is designed for compact PCB layouts and automated pick-and-place assembly. The unshielded chip construction is suitable for high-frequency signal applications where board layout and nearby component placement are carefully controlled. ## Material and Construction Description The device uses a ceramic-core wirewound construction, which supports stable high-frequency inductance characteristics. The specified configuration includes RoHS-compliant matte tin over nickel over silver-platinum-glass frit termination, suitable for standard surface-mount soldering processes. ## Mounting and Assembly Description The **0603CS-3N9XJRW** is intended for surface-mount PCB assembly. Proper land pattern design, solder paste control, placement accuracy, and reflow soldering profile should follow Coilcraft recommendations. RF layout practices should be observed, including short trace lengths, controlled impedance routing, proper grounding, and minimized parasitic capacitance. ## Application Suitability The device is suitable for RF matching networks, wireless communication circuits, antenna tuning, filters, oscillators, resonant circuits, broadband RF designs, cellular modules, Wi-Fi and Bluetooth hardware, test equipment, and high-frequency embedded electronics. ## Design Considerations The design should account for inductance tolerance, Q factor, self-resonant frequency, DC resistance, current rating, operating temperature, layout parasitics, solder joint reliability, and interaction with nearby magnetic or conductive structures. For RF applications, the final performance should be validated in the actual PCB layout because trace geometry and component placement can affect impedance and resonance behavior. ## Hashtags #commonpartslibrary #inductor #rfinductor #chipinductor #coilcraft #coilcraftinductor #0603cs #0603component #smdinductor #surfacemount #wirewoundinductor #ceramiccoreinductor #passivecomponent #rfdesign #highfrequency #impedancematching #rffilter #wirelesshardware #communicationequipment #pcbdesign #hardwaredesign #electronicscomponents #electronicparts #componentlibrary #engineeringparts #electronicsengineering

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

Omron G5LE relay, Miniature Single Pole, SPDT, 10A Miniature Single Pole Relay Relay*SPDT*Omron*G5LE?1*

Single-String 3V Minimum VIN 36V VOUT Boost LED Driver #ultralibrarian

Multilayer Ceramic Capacitor (MLCC) – 2.2 µF ceramic chip capacitor with 100 V DC rated voltage, ±10% capacitance tolerance, and X7R dielectric for general-purpose decoupling and filtering applications. Features 3% maximum dissipation factor, 227 MΩ minimum insulation resistance, and operates over a −55°C to +125°C temperature range. Designed for surface-mount assembly in a 1210 (3225 Metric) package. #TDK #C3225X7R2A225K230AB #MLCC #CeramicCapacitor #MultilayerCeramicCapacitor #X7R #2_2uF #100V #1210 #3225Metric #SurfaceMount #PassiveComponents #EmbeddedSystems

Telecom Relay DPDT (2 Form C) Through Hole Relay, miniature signal relay designed for switching low-level signal and general-purpose loads. The G6S-2 DC5 is a 2-pole (DPDT), non-latching relay with a 5 VDC coil, featuring bifurcated crossbar contacts for high contact reliability. It is rated to switch up to 2 A at 30 VDC or 0.5 A at 125 VAC, provides 1,500 VAC dielectric strength between coil and contacts, and is available in a compact through-hole PCB package suitable for high-density circuit designs. #Relay #SignalRelay #DPDT #5VDC #ThroughHole #PCBRelay #Omron #ElectromechanicalRelay #BifurcatedContacts #2A

Surface-Mount Piezo Audio Transducer – Externally driven piezoelectric audio transducer designed for audible alerts, alarms, user notifications, medical devices, consumer electronics, and embedded systems. Operates at a 3 Vp-p rated drive voltage with an operating voltage range of 1 to 25 Vp-p, producing a minimum sound pressure level of 70 dBA at 10 cm with a 4 kHz ±500 Hz resonant frequency. Features 1 mA maximum current consumption, 12,000 pF ±30% capacitance, top sound port, and surface-mount (SMD) construction with 9 × 9 × 2.4 mm dimensions. Supports reflow soldering, utilizes an LCP housing with tin-plated brass terminals, and is specified for operation over a −30°C to +85°C temperature range. #PUIAudio #SMT0940T3VR #PiezoTransducer #PiezoBuzzer #AudioTransducer #SMDBuzzer #Alarm #AudibleIndicator #EmbeddedSystems #IndustrialElectronics #ConsumerElectronics #MedicalDevices

The NCP4304A and NCP4304B, manufactured by ON Semiconductor, are advanced controllers and drivers designed to optimize synchronous rectification in high-efficiency switch mode power supplies (SMPS). These versatile components are suitable for various topologies, including flyback, forward, and half-bridge resonant LLC converters. Featuring an externally adjustable minimum on and off times, the NCP4304A/B effectively mitigates ringing caused by PCB layout and parasitic elements, ensuring reliable and noise-free operation. The components boast an extremely low turn-off delay time of typically 40 ns, high sink current capability, and an automatic package parasitic inductance compensation system, which together maximize the conduction time of the synchronous rectification MOSFET, thereby enhancing SMPS efficiency. The NCP4304A offers a gate drive clamp of 12 V, while the NCP4304B provides a 6 V clamp, facilitating implementation in 24 V output applications. Key features include precise secondary zero current detection with an adjustable threshold, a maximum operating frequency of 500 kHz, and a low startup and standby current consumption. The devices are available in SOIC-8 and DFN8 packages, making them suitable for high power density AC/DC power supplies, notebook adapters, gaming consoles, and other applications demanding high efficiency.

Zero-Drift Operational Amplifier – Dual auto-zero, rail-to-rail input/output operational amplifier for precision signal amplification. Operates from a 1.8 V to 5.5 V supply, features 2 µV maximum input offset voltage, ±50 nV/°C maximum offset drift, 1.3 MHz typical gain-bandwidth product, 0.5 V/µs typical slew rate, 300 µA typical supply current per amplifier, and 22 mA typical output current per channel. Includes unity-gain stability, 130 dB minimum CMRR, 130 dB minimum PSRR, and is specified for operation over a −40°C to +125°C temperature range. Housed in an 8-pin SOIC package. #Microchip #MCP6V02 #MCP6V02ESN #OperationalAmplifier #ZeroDrift #AutoZero #RailToRail #PrecisionAmplifier #DualOpAmp #LowOffset #SOIC8 #AnalogIC #EmbeddedSystems

Polymeric PTC Resettable Fuse – Surface-mount resettable overcurrent protection device with a 9 V maximum operating voltage, 200 mA hold current (Ih), 500 mA trip current (It), and 100 A maximum fault current. Features 400 mΩ minimum initial resistance, 3.5 Ω maximum post-trip resistance, 20 ms typical time-to-trip, and operates over a −40°C to +85°C temperature range. Housed in an 0805 (2012 Metric) concave surface-mount package. #BelFuse #0ZCK0020FF2G #PTCResettableFuse #PolymericPTC #ResettableFuse #OvercurrentProtection #CircuitProtection #SurfaceMount #0805 #PassiveComponents #EmbeddedSystems

Single-String 1.8V Minimum VIN 36V VOUT Boost LED Driver #ultralibrarian