Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-S3-WROOM-1-N16R8 is a high-performance Wi-Fi + Bluetooth Low Energy (BLE) module developed by Espressif Systems. It is built around the ESP32-S3 SoC, featuring a dual-core Xtensa LX7 32-bit processor running up to 240 MHz. This module integrates 16 MB Flash memory and 8 MB PSRAM, making it suitable for memory-intensive applications such as AI, image processing, and advanced IoT systems. It also includes an onboard PCB trace antenna, RF circuitry, crystal oscillator, and power management components—allowing designers to quickly integrate wireless connectivity into compact embedded designs. Key Features Processing & Memory Dual-core Xtensa LX7 CPU, up to 240 MHz 384 KB ROM, 512 KB SRAM + 16 KB RTC SRAM 16 MB Flash (Quad SPI) 8 MB PSRAM (Octal/Quad SPI) Connectivity 2.4 GHz Wi-Fi (802.11 b/g/n) Bluetooth 5 (LE) + Mesh support Integrated PCB antenna Peripherals & Interfaces Up to 36 GPIOs Interfaces: UART, SPI, I2C, I2S, PWM, ADC, USB OTG Built-in USB Serial/JTAG support Supports touch sensors, timers, watchdogs, CAN (TWAI) Electrical Characteristics Supply voltage: 3.0 V – 3.6 V TX power: up to ~20.5 dBm RX sensitivity: ~-103.5 dBm Operating temp: −40 °C to +65 °C (typical) Advanced Capabilities Optimized for AI acceleration (vector instructions) Suitable for voice recognition, image processing, and edge AI Low-power modes for battery-operated devices| Typical Applications IoT devices and sensor hubs Smart home & home automation AIoT (voice/image recognition) Industrial automation & monitoring Wearables and health devices USB-connected embedded systems #Module #RF-Transceiver #ESP32-S3

Electronic Fuse Regulator 5.3A 20-WQFN (3x4) The TPS25940LRVCR is a compact eFuse (electronic fuse) power management IC from Texas Instruments designed to provide advanced power-path protection and load management for systems such as SSDs, servers, storage devices, and embedded electronics. It integrates protection features like overcurrent limiting, reverse current blocking, overvoltage protection, and controlled startup sequencing into a single chip. Wide input voltage range: 2.7 V to 18 V Adjustable current limit: 0.6 A to 5.3 A Low ON resistance: 42 mΩ typical True reverse current blocking using back-to-back MOSFETs Programmable output slew rate (dV/dt control) for inrush current management Overvoltage and undervoltage protection Fault and Power-Good outputs for system monitoring Current monitor (IMON) output Low-power DevSleep support for SSD applications Fast reverse voltage shutdown (~1 µs) Operating temperature: −40°C to +125°C junction temperature Available in a compact 20-pin WQFN package Typical Applications PCIe / SATA / SAS SSDs and HDDs Enterprise servers and storage systems RAID controller cards Smart load switches Set-top boxes and gaming systems Backup power and holdup capacitor systems Component Category This component belongs to: Power Management IC (PMIC) More specifically: eFuse / Hot-swap / Load Switch IC Package Information Package type: 20-WQFN (3 mm × 4 mm) Mounting type: Surface Mount (SMD) #commonpartslibrary #integratedcircuit #powermanagement #currentregulation

Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH 4 s Surface Mount The SHT41-AD1B-R2 is a fully calibrated, low-power environmental sensor that measures relative humidity (RH) and temperature. It integrates sensing elements, signal processing, and a digital interface into a small surface-mount package, making it ideal for space-constrained designs. Key Features Sensor Type: Digital humidity and temperature sensor Interface: I²C (easy MCU integration) Supply Voltage: ~1.08 V to 3.6 V Humidity Accuracy: up to ±1.8% RH (typical) Temperature Accuracy: up to ±0.2 °C (typical) Response Time: Fast measurement and low latency Power Consumption: Ultra-low, suitable for battery devices Package: DFN (compact, ~1.5 × 1.5 mm) Factory Calibration: No external calibration required Functional Overview The sensor uses capacitive humidity sensing combined with a bandgap temperature sensor. Internal electronics convert these measurements into digital data via I²C, eliminating the need for external ADCs or complex signal conditioning. Design Advantages Small footprint for compact PCBs Low power consumption for IoT and portable devices High reliability with long-term stability Fast response time for real-time monitoring Simple integration with microcontrollers Typical Applications IoT and smart home devices HVAC and climate control systems Wearables and portable electronics Industrial monitoring systems Environmental data logging #CommonPartsLibrary #Sensors,-Transducer #Humidity #Moisture-Sensor #SHT4x

1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC with 4.2 VBAT The BQ24075TRGTR (from Texas Instruments) is a highly integrated single-cell Li-Ion / Li-Polymer linear battery charger IC with power-path management. It is designed for portable and space-constrained applications, allowing a device to be powered from a USB port or AC adapter while simultaneously charging the battery. The device integrates charging control, power-path management, and safety features into a compact package. A key feature is its Dynamic Power Path Management (DPPM), which ensures the system is powered even when the battery is low or absent, while intelligently managing charging current. Key Features Battery Charging Supports single-cell Li-Ion / Li-Polymer batteries Up to 1.5 A programmable charge current Three-phase charging: Pre-charge (conditioning) Constant current Constant voltage Fixed 4.2 V charge voltage Power Path Management Dynamic Power Path Management (DPPM): Powers system and charges battery simultaneously Prioritizes system load over charging Allows system operation even with: Deeply discharged battery No battery connected Input & Power Features Operates from: USB input (100 mA / 500 mA selectable) AC adapter Programmable input current limit up to 1.5 A Input voltage range: ~4.35 V to 6.4 V (28 V max rating) Input dynamic power management (VIN-DPM) prevents source overload Protection & Safety Thermal regulation and shutdown Over-voltage protection (OVP) Short-circuit and reverse current protection Battery temperature monitoring (NTC thermistor input) Battery disconnect (SYSOFF) feature Control & Status Standalone operation (no MCU required, resistor-programmable) Charge status outputs: Charging Charge complete Power good Physical Characteristics Package: 16-pin VQFN (3 mm × 3 mm) Operating temperature: –40°C to +85°C #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

USB Controller USB 2.0 I2C Interface 24-QFN (4x4) The STUSB4500QTR is a standalone USB Type-C Power Delivery (PD) controller from STMicroelectronics designed for power sink applications (devices that receive power, like chargers, IoT devices, or battery-powered systems). It enables automatic negotiation of USB Power Delivery contracts (up to 100 W: 20 V / 5 A) without requiring an external microcontroller, thanks to its built-in auto-run algorithm. Power profiles (PDOs) can be pre-configured and stored in internal non-volatile memory, simplifying system design and reducing component count. The device is optimized for modern USB-C designs, offering robust protection, high-voltage tolerance, and support for operation even from a dead battery state. Key Features Power Delivery & Control Standalone USB Type-C™ and USB PD sink controller Supports up to 100 W (20 V, 5 A) power negotiation Auto-run mode (no MCU required) for PD negotiation Up to 3 configurable sink PDO profiles stored in NVM Power Management Dead battery mode support (can start with no battery power) Dual power supply inputs: V_SYS: 3.0 V – 5.5 V V_DD: 4.1 V – 22 V Integrated VBUS monitoring and control Integrated Functions Built-in VBUS switch gate drivers (PMOS) Internal/external VBUS discharge paths I²C interface for configuration and monitoring Protection & Reliability Short-to-VBUS protection on CC pins (up to 22 V) High-voltage tolerance: Up to 28 V on VBUS pins ESD protection: 3 kV HBM / 1.5 kV CDM Physical & Environmental Package: QFN-24 (4×4 mm) Operating temperature: –40°C to +105°C Industrial-grade reliability Compliance & Compatibility Certified for: USB Type-C Rev 1.2 USB PD Rev 2.0 Interoperable with USB PD 3.0 #commonpartslibrary #integratedcircuit #usbcontroller

Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 3.5A 8-PowerSOIC (0.154", 3.90mm Width) The LM5013DDAR is a 100-V input, 3.5-A buck switching regulator IC that efficiently steps down high DC voltages (such as 24 V, 48 V, or battery rails) to lower regulated outputs. It is optimized for rugged environments where wide input variations and high reliability are required. It features ultra-low quiescent current operation, making it suitable for systems that require high efficiency even at light load or standby conditions. Key Features Wide input voltage range: 6 V to 100 V Up to 3.5 A output current capability Integrated 100-V high-side MOSFET Non-synchronous buck topology Ultra-low quiescent current (IQ) for high efficiency in standby Constant-on-time (COT) control for fast transient response No external compensation components required Adjustable output voltage (down to ~1.2 V reference) 50 ns minimum on/off time for high step-down ratios Built-in protection features: Overcurrent protection Thermal shutdown Input undervoltage lockout (UVLO) Open-drain power-good (PGOOD) signal for system monitoring Meets low EMI requirements (CISPR 25 Class 5 capable) Package 8-pin SO PowerPAD (DDA) surface-mount package Designed for good thermal performance in high-voltage applications Typical Applications Industrial power supplies (24 V / 48 V systems) Automotive power systems Telecom and networking equipment High cell-count battery systems Motor control and inverter subsystems #LM5013 #BuckConverter #DCDCConverter #TexasInstruments #PowerManagementIC #HighVoltageRegulator #3ARegulator #IndustrialPower #AutomotiveElectronics #SwitchingRegulator #COTController

24 Bit Analog to Digital Converter 8 Input 8 Sigma-Delta 32-TQFP (5x5) The ADS131M08IPBSR is a high-precision, simultaneous-sampling analog-to-digital converter designed for multi-channel data acquisition systems requiring accurate and synchronized measurements. Manufactured by Texas Instruments, this device integrates eight differential input channels with low-noise performance, programmable gain amplification, and precision voltage reference support. The converter architecture is optimized for industrial automation, energy monitoring, medical instrumentation, and precision sensing applications where phase alignment and signal fidelity are critical. The device incorporates delta-sigma conversion technology with integrated digital filtering to provide high dynamic range and excellent noise performance across a wide operating bandwidth. It supports flexible data interface configurations through a high-speed SPI-compatible serial interface, enabling efficient communication with microcontrollers, DSPs, and FPGA-based systems. The integrated diagnostic and monitoring features improve system reliability and simplify fault detection in safety-critical applications. The ADS131M08IPBSR operates from low-voltage analog and digital supplies while maintaining low power consumption suitable for embedded and portable systems. The compact thermally enhanced package supports dense PCB layouts and reliable operation across industrial temperature environments. Engineering Specification Device Type: Simultaneous-Sampling Delta-Sigma Analog-to-Digital Converter Manufacturer: Texas Instruments Channel Configuration: Eight Differential Input Channels Resolution: Twenty-Four Bit ADC Architecture: Delta-Sigma Sampling Type: Simultaneous Sampling Input Type: Differential Analog Inputs Programmable Gain Amplifier: Integrated Data Output Interface: SPI-Compatible Serial Interface Reference Support: External Precision Voltage Reference Digital Filtering: Integrated Sinc Filter Architecture Operating Supply Voltage: Low-Voltage Analog and Digital Supplies Noise Performance: Low Noise Precision Measurement Capability Power Consumption: Optimized for Low Power Operation Diagnostics Features: Integrated Self-Monitoring and Fault Detection Temperature Range: Industrial Operating Temperature Range Package Type: TQFP Surface-Mount Package Mounting Type: Surface Mount Technology Application Areas: Energy Metering, Industrial Automation, Medical Instrumentation, Data Acquisition Systems, Multi-Channel Sensor Interfaces #commonpartslibrary #integratedcircuit #analog #digital #converter

Battery Fuel Gauge IC Lithium Ion/Polymer 24-TQFN (4x4) The MAX17320G20+ is a high-accuracy, ultra-low-power fuel gauge and battery protector IC designed for 2-cell to 4-cell lithium-ion and lithium-polymer battery packs. The device integrates Maxim Integrated’s ModelGauge™ m5 EZ algorithm to provide precise battery state-of-charge estimation without requiring battery relearning after system resets or battery replacement. It is optimized for portable, wearable, industrial, and IoT battery-powered applications where accurate battery monitoring and robust protection are required. The device combines fuel gauging, battery authentication support, autonomous battery protection, current sensing, and voltage monitoring into a single integrated solution. It includes configurable protection features such as overvoltage, undervoltage, overcurrent, short-circuit, and thermal protection, helping improve system safety and battery reliability. The MAX17320G20+ communicates through an I²C-compatible interface and supports low-power operation for extended battery runtime. Features High-accuracy battery fuel gauge for multi-cell lithium-ion batteries Supports 2-cell to 4-cell battery pack configurations Integrated ModelGauge m5 EZ algorithm with no battery relearning required Integrated battery protector with autonomous safety monitoring Supports overvoltage, undervoltage, overcurrent, short-circuit, and thermal protection Integrated current-sense amplifier for accurate current measurement Low quiescent current optimized for portable and always-on systems I²C-compatible communication interface Configurable alert and interrupt functions Battery aging compensation and cycle tracking Supports battery authentication functionality Integrated ADCs for voltage, current, and temperature monitoring Programmable protection thresholds and timing parameters Low-power hibernate and sleep operating modes Electrical Characteristics Designed for lithium-ion and lithium-polymer battery chemistries Supports battery stack voltages corresponding to 2S to 4S configurations High-resolution voltage, current, temperature, and capacity measurements Low operating current suitable for battery-powered systems Integrated precision coulomb counter Wide operating temperature range suitable for industrial applications Protection Functions Cell overvoltage protection Cell undervoltage protection Charge overcurrent protection Discharge overcurrent protection Short-circuit protection Overtemperature and undertemperature protection Permanent failure detection and fault logging Autonomous FET control for pack isolation Interface and Control I²C serial communication interface Programmable registers for protection and fuel gauge configuration Interrupt and alert outputs for fault and status indication Supports host processor communication and diagnostics Nonvolatile memory for configuration storage Package Information Package type is TQFN Compact surface-mount package suitable for space-constrained designs RoHS compliant and lead-free package option Typical Applications Smart battery packs Portable medical devices Industrial handheld equipment IoT and wireless sensor devices Battery-powered consumer electronics Portable test and measurement systems Rechargeable multi-cell battery systems #commonpartslibrary #integratedcircuit #powermanagement #batterymanagement

Buck-Boost Switching Regulator IC Positive Programmable 0.8V 1 Output 8A 21-PowerVFQFN Synchronous buck-boost DC-DC converter IC that regulates output voltage from a wide input supply range for power management applications. The TPS552892RYQR integrates a four-switch synchronous buck-boost power stage and operates with a 2.7 V to 36 V input voltage range, providing a regulated output voltage across a wide conversion range. It supports programmable output voltage settings and adjustable switching frequency operation, enabling flexible power design optimization. The device includes I²C interface control for configuration and telemetry monitoring. It is designed for high-efficiency step-up and step-down conversion in compact power systems. Key specifications (per datasheet): Input voltage range: 2.7 V to 36 V Topology: Synchronous 4-switch buck-boost converter Control/interface: I²C configurable operation Adjustable switching frequency (as specified in datasheet) #DC-DCConverter #BuckBoost #PowerManagement #TexasInstruments #SynchronousConverter #IC

NTC Thermistor 10k 0805 (2012 Metric) The TX08F103F3435ER is a surface-mount NTC (Negative Temperature Coefficient) thermistor designed to measure temperature by changing its resistance as temperature varies. It is commonly used in compact electronics for temperature monitoring, control, and protection circuits. It comes in a small 0805 (2012 metric) SMD package, making it suitable for high-density PCB designs. ⭐ Key Features NTC thermistor (negative temperature coefficient type) Nominal resistance: 10 kΩ @ 25°C B-value: 3435 K (B25/85) High precision: ±1% resistance tolerance B-value tolerance: ±1% SMD package: 0805 (2012 metric size) Wide operating temperature range: -40°C to +125°C Low power dissipation (max ~130 mW) Fast thermal response due to small package size RoHS compliant and suitable for automated PCB assembly Designed for temperature sensing, compensation, and control applications #commonpartslibrary #ntc #thermistor