Connector Header Through Hole 4 position 0.100" (2.54mm) UART header 1x4 2.54mm Single-row, through-hole male pin header with 4 positions and 2.54 mm pitch. Designed for board-to-wire or board-to-board interconnect applications such as UART interfaces. Mechanical Specifications Number of Positions: 4 Number of Rows: 1 Pitch: 2.54 mm (0.100") Mounting Style: Through Hole Mounting Angle: Straight (Vertical) Contact Gender: Male (Pin) Termination Type: Solder Pin Housing Material: Polybutylene Terephthalate (PBT) Housing Color: Black Electrical Specifications Current Rating: 4.3 A – 6.3 A (per pin, depending on conditions) Voltage Rating: 450 VAC – 550 VAC Contact Resistance: (Typical for series, not specified exact) Insulation Resistance: (Not specified) Material & Plating Contact Material: Phosphor Bronze Contact Plating: Gold Flammability Rating: UL94 V-0 Environmental & Compliance RoHS Compliance: Yes Country of Origin: USA Packaging Packaging Type: Bulk Factory Pack Quantity: 1 Series Information Series: TSW (Samtec Pin Strip Header Series) Product Type: Headers & Wire Housings Typical Applications UART / Serial communication headers Microcontroller programming interfaces General-purpose 2.54 mm interconnects Prototyping and development boards #commonpartslibrary #connector

Bluetooth, WiFi 802.11b/g/n/ax, Bluetooth v5.4 Transceiver Module 2.4GHz Integrated, Chip Surface Mount Silicon Labs SiWG917 module is our lowest power Wi-Fi 6 plus Bluetooth LE 5.4, ideal for ultra-low power IoT wireless devices using Wi-Fi®, Bluetooth, Matter, and IP networking for secure cloud connectivity. It is optimal for developing battery operated devices that need long battery life. SiWG917 module includes an ultra-low power Wi-Fi 6 plus Bluetooth Low Energy (LE) 5.4 wireless CPU subsystem, and an integrated micro-controller (MCU) application subsystem, security, peripherals and power management subsystem all in a single 16 x 21.1 x 2.3 mm package. The wireless subsystem consists of a multi-threaded Network Wireless Processor (NWP) running up to 160 MHz, baseband digital signal processing, analog front end, 2.4 GHz RF transceiver and integrated power amplifier. The application subsystem consists of an ARM® Cortex®-M4 running up to 180 MHz, embedded SRAM, flash, ultra-low power sensor hub, and matrix vector processor. The ARM® Cortex®-M4 is dedicated for peripheral and application-related processing, while the NWP runs the wireless and networking stacks on independent threads, thus providing a fully integrated solution that is ready for a wide range of embedded wireless IoT applications. The modules come with modular radio type approvals for various countries, including USA (FCC), Canada (IC/ISED) and Japan (MIC), and are in compliance with the relevant EN standards (including EN 300 328 v2.2.2) for the conformity with the directives and regulations in EU and UK. KEY FEATURES • Wi-Fi 6 Single Band 2.4 GHz 20 MHz 1x1 stream IEEE 802.11 b/g/n/ax • Bluetooth LE 5.4 • Single chip Matter Over Wi-Fi Solution • ARM® Cortex® M4 Processor with FPU subsystem up to 180 MHz with rich set of Digital and Analog Peripherals. • Wi-Fi 6 Benefits: TWT for improved efficiency and longer battery life, MUMIMO/OFDMA for Higher Throughput, network capacity and low latency • Best in Class Device and Wireless Security • WLAN Tx power up to +17.5 dBm with integrated PA • Bluetooth LE Tx power up to +17 dBm with integrated PA • WLAN Rx sensitivity as low as -95.5 dBm • Wi-Fi 4 Standby Associated mode current: 71 μA @ 1-second listen interval • Embedded Flash option up to 8 MB/ optional external Flash up to 16 MB • Embedded PSRAM option up to 2 MB/ optional external PSRAM option up to 16 MB • Ultra-low power sensor hub peripherals • Matrix Vector Processor (MVP) • Embedded Wi-Fi, Bluetooth LE, Matter, and networking stacks supporting wireless coexistence • Three software-configurable MCU application memory options for sharing the RAM between the wireless, system, and application (192/256/320 KB) • Operating temperature: -40 to +85 ºC • Operating supply range: 3.0 to 3.63 V • Supply voltage for GPIOs: 1.71 to 3.63 V #WiFi6 #BluetoothLE54 #IoTModule #WirelessSoC #SiliconLabs #EmbeddedSystems #SmartHome #IndustrialIoT #LowPowerDesign #RFModule #ConnectedDevices #EdgeComputing #MatterReady #PCBDesign #ElectronicsEngineering

Battery Holder (Open) 9V 1 Cell PC Pin 9V battery holder through hole The BH9VPC is a through-hole, printed circuit board–mount battery holder designed to accommodate a single standard 9 V (PP3) battery. It provides a secure mechanical enclosure and reliable electrical interface for powering electronic assemblies directly from a PCB. The holder is constructed from durable insulating material with integrated metal contacts to ensure stable retention and consistent electrical connection during operation. Its form factor supports straightforward integration into compact designs while maintaining ease of battery replacement. Engineering Specification: The component is intended for through-hole mounting using PC pins that provide both mechanical stability and electrical connection to the circuit board. It supports one 9 V battery with standard snap terminal interface internally routed to PCB pins. The housing material is typically molded plastic with good mechanical strength and electrical insulation properties suitable for general electronic applications. Contact terminals are metal, commonly nickel-plated or equivalent, to ensure low contact resistance and corrosion resistance over repeated battery insertions. The holder is designed for vertical mounting orientation relative to the PCB, with a compact footprint suitable for space-constrained layouts. It provides sufficient retention force to secure the battery under normal handling and vibration conditions encountered in consumer and light industrial electronics. The operating characteristics are aligned with typical 9 V battery usage, supporting low to moderate current applications depending on battery capability. The part is compatible with standard wave soldering processes used in through-hole assembly. It is intended for use in ambient environmental conditions typical of indoor electronic equipment and is not inherently sealed against moisture or contaminants. The design allows easy manual insertion and removal of the battery without specialized tools, supporting maintenance and replacement in field applications. #commonpartslibrary #batteryholder

2 Position Board Side/Socket - Closed 5.08mm Pitch Right-Angle Pin The WJ2EDGRC-5.08-02P-14-00A is a 2-position pluggable terminal block (screw-type connector) with a 5.08 mm pitch, commonly used for PCB power and signal connections. It is part of the EDGRC series designed for reliable wire-to-board connectivity in industrial, automation, and power electronics applications. It allows secure cable termination using screw clamps and is designed for easy plug-in/out mating with a corresponding header on a PCB. Key Features Type: Pluggable terminal block (female plug) Pin count: 2 positions Pitch: 5.08 mm Connection method: Screw clamp / rising cage clamp Mounting style: Through-hole (mates with PCB header) Wire termination: Suitable for solid and stranded wires High reliability contact design for stable electrical connection Detachable plug-in design for easy maintenance and replacement High current capability (typical for 5.08 mm pitch terminal blocks) Industrial-grade insulation material for durability and safety Wide usage: Power supply input, motor control, industrial I/O, and general PCB wiring #CommonPartsLibrary #Connector #Terminal block

Espressif’s ESP8266EX delivers highly integrated Wi-Fi SoC solution to meet users’ continuous demands for efcient power usage, compact design and reliable performance in the Internet of Things industry. With the complete and self-contained Wi-Fi networking capabilities, ESP8266EX can perform either as a standalone application or as the slave to a host MCU. ESP8266EX integrates antenna switches, RF balun, power amplier, low noise receive amplier, lters and power management modules. TheQFN50P500X500X80-33N

MPU with Dual Arm Cortex-A35 @1.5GHz, Cortex-M33 @400MHz, 3xEthernet (2+1 switch), 3xFD-CAN, LVDS/DSI, H.264, 3D GPU, AI/NN, Secure Boot, Cryptography, DRAM enc/dec, PKA The STM32MP257FAI3 is a high-performance microprocessor from STMicroelectronics' STM32MP2 series, integrating dual 64-bit Arm Cortex-A35 cores running at up to 1.5 GHz, a Cortex-M33 real-time core, and a Cortex-M0+ low-power management core. It is designed for advanced industrial, edge AI, machine vision, HMI, IoT gateway, and multimedia applications requiring Linux-class processing alongside deterministic real-time control. The device features AI acceleration, 3D graphics, video encoding/decoding, extensive connectivity, advanced security, and support for high-speed external memory. Key Features Dual-core 64-bit Arm Cortex-A35 CPU operating up to 1.5 GHz Arm Cortex-M33 real-time processor with TrustZone and FPU support Arm Cortex-M0+ low-power coprocessor for autonomous operation Integrated NPU (Neural Processing Unit) delivering up to 1.35 TOPS AI performance 3D GPU and hardware video encoder/decoder acceleration Supports DDR3L, DDR4, and LPDDR4 external memory up to 4 GB Multiple display interfaces including MIPI-DSI, LVDS, and parallel RGB USB 2.0 Host and USB 3.0 Dual-Role with embedded PHYs PCI Express interface with integrated 5 Gbps PHY Up to three Gigabit Ethernet interfaces with TSN and IEEE 1588 support Extensive connectivity: I2C, I3C, SPI, UART, USART, CAN FD, SDMMC, SAI, and SPDIF Hardware cryptographic accelerators including AES, SHA, RSA, ECC, PKA, and True RNG Secure boot, TrustZone security, tamper detection, and resource isolation framework Multiple low-power operating modes for energy-efficient designs Available in fine-pitch BGA packages for high-density embedded systems. #STM32MP257FAI3 #STM32MP2 #STMicroelectronics #CortexA35 #CortexM33 #EdgeAI #EmbeddedLinux #IndustrialAutomation #MachineVision #HMI #IoTGateway #MPU #PCIe #USB3 #GigabitEthernet #TrustZone #EmbeddedSystems #ArtificialIntelligence #LinuxProcessor #IndustrialIoT #CommonPartsLibrary #IntegratedCircuit #Microprocessor #STM32MP2

Power Switch/Driver 1:1 N-Channel 1.35A 28-WQFN (4x5) The TPS274160 device is a smart high-side switch with four integrated 160-mΩ NMOS power FETs and a chargepump to drive the gates. The device offers robust protection and diagnostic features to drive various loads (inductive, capacitive, and resistive) such as low wattage bulbs, LEDs, relays, solenoids, heaters, and sub-modules. The part enables flexible, multi-channel output configurations through paralleling channels and is in a very small WQFN package to enable usage in space constrained applications. The device is protected against short circuit events and over-temperature events, safely shutting off the output during fault events. The device also implements an external adjustable current limiting feature. This feature improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current thereby eliminating system supply brown out condition. The device also integrates diagnostic features like output current monitoring (version B) and open load detection to enable improved intelligence in modules and to enable predictive maintenance functionality. • Quad-channel 160-mΩ smart high-side switch • Wide DC operating voltage range: 5 V to 36 V – 50-V absolute maximum voltage • Accurate adjustable current limiting (250 mA to 4 A) • Intelligent diagnostic features – TPS274160A: Open-drain fault output – TPS274160B: Analog current sense – Open-load or short to supply detection in the off-state • Robust protection features – Short-circuit protection – Inductive load flyback clamp – Undervoltage lockout (UVLO) protection – Loss of GND protection • Excellent ESD protection on VS and OUT pins – ±8/±15 kV IEC 61000-4-2 ESD contact/air discharge • Available in small and 28-pin leadless QFN packages • Functional Safety-Capable – Documentation available to aid functional safety system design 2 Applications • Digital output modules • Standalone remote I/O • Motor drives • Solenoid or valve drive #TexasInstruments #TPS274160BRLHR #HighSideSwitch #SmartSwitch #IndustrialAutomation #PowerManagement #LoadDriver #CurrentLimiting #ProtectionIC #IndustrialControl #RemoteIO #SolenoidDriver #MotorDrive #EmbeddedSystems #ElectronicsDesign

Enclosed AC DC Converters 2 Output 15V 340mA, 340mA 80 ~ 305 VAC Input The RAC10-K/277 series are highly efficient PCB-Mount power conversion modules with ultra-low energy losses even in light load conditions. Built for worldwide usage, the AC/DC units cover an enhanced mains input range of 85VAC up to 305VAC and come with international safety certifications for both industrial and household standards. These AC/DC modules offer fully protected single or dual outputs as well as EMC Class B compliance without the need of any external components. The 140% peak power capability makes the RAC10-K/277 series suitable for inductive, high start-up current or nonlinear loads. With a full load temperature range of -40°C to +65°C, they are ideal for always on and standby mode operations in process automation, IoT and smart building applications. Input voltage: 85 VAC to 305 VAC (wide-range, including 277 VAC industrial lines) Output: Dual output (±15 V DC) Power rating: 10 Watts Isolation: Fully isolated AC to DC conversion Encapsulation: Fully sealed/potted module for safety and reliability #CommonPartsLibrary #power-supply #RAC10-15