ARM® Cortex®-M0+ STM32G0 Microcontroller IC 32-Bit Single-Core 64MHz 32KB (32K x 8) FLASH 8-SOIC The STM32G031J6M6 is a compact, low-power 32-bit microcontroller from STMicroelectronics, based on the Arm® Cortex®-M0+ core running at up to 64 MHz. It belongs to the STM32G0 series, designed for cost-sensitive and energy-efficient embedded applications. This MCU integrates essential peripherals, memory, and system functions into a small package (8-pin SOIC), making it suitable for consumer electronics, industrial control, appliances, and IoT devices where space and power efficiency are critical. Key Features Core & Performance 32-bit Arm Cortex-M0+ CPU Up to 64 MHz clock frequency Memory Protection Unit (MPU) for improved reliability and security 💾 Memory 32 KB Flash memory (program storage) 8 KB SRAM Flash protection (read/write protection, secure area) Peripherals & Interfaces Communication: I2C (2x) SPI (2x) / I2S USART (2x) + Low-power UART 12-bit ADC (up to ~2.5 MSps, multiple channels) DMA controller (5 channels) Timers: Advanced PWM timer (motor control capable) General-purpose timers (16-bit & 32-bit) Low-power timers Watchdog timers RTC (Real-Time Clock) with VBAT backup Power & Efficiency Operating voltage: 1.7 V to 3.6 V Multiple low-power modes: Sleep, Stop, Standby, Shutdown Optimized for low energy consumption (battery-powered designs) I/O & Package Up to 44 GPIOs (depending on package) 6 GPIOs available in the 8-pin (J6M6) package 5V-tolerant I/O pins (select pins) Compact SOIC-8 package#commonpartslibrary #integratedcircuit #microcontroller

Tactile Switch SPST-NO Top Actuated Through Hole tactile switch 6x6 through hole The B3F-1000 is a compact, through-hole mounted tactile switch designed for momentary input applications. It features a standard 6.0 mm square footprint and is widely used in consumer and industrial electronics for reliable user interface control. Mechanical Characteristics Dimensions (L × W × H): 6.0 mm × 6.0 mm × 3.4 mm Actuator Type: Round Actuator Height: 4.3 mm Mounting Style: Through Hole Mounting Direction: Straight Termination Style: Solder Pin Color: White Electrical Characteristics Switch Function: SPST, Momentary (OFF-(ON)) Contact Rating: 50 mA @ 24 VDC Operating Force: 1 N (~100 gf) Contact Resistance: ≤100 mΩ (typical, refer to datasheet) Insulation Resistance: ≥100 MΩ (typical, refer to datasheet) Environmental Characteristics Operating Temperature Range: -25°C to +70°C RoHS Compliance: Yes Reliability Operating Life: 1,000,000 cycles Packaging Information Factory Pack Quantity: 1500 pcs Unit Weight: 0.008818 oz (~0.25 g) Additional Information Country of Origin: Japan (JP) Illumination: Non-illuminated Ground Terminal: No #commonpartslibrary #switch #tactile #spst

PIC PIC® 16F Microcontroller IC 8-Bit 20MHz 14KB (8K x 14) FLASH 40-PDIP The PIC16F877A-I/P is a high-performance 8-bit microcontroller from Microchip Technology, based on a Harvard architecture with separate program and data memory buses. It is designed for a wide range of embedded applications requiring reliable processing, multiple communication interfaces, and analog capability. The device integrates Flash program memory, EEPROM data storage, and numerous peripherals including ADC, timers, serial communication modules, and PWM functions. Packaged in a 40-pin PDIP form factor, it is widely used in industrial automation, consumer electronics, and educational development systems. Core Features 8-bit PIC microcontroller architecture Harvard architecture with RISC instruction set Operating frequency up to 20 MHz Single-cycle instruction execution (except branches) Memory Program Memory: 8K words (Flash) Data Memory (RAM): 368 bytes EEPROM Data Memory: 256 bytes I/O Features Up to 33 programmable I/O pins Multiple input/output ports (PORTA, PORTB, PORTC, PORTD, PORTE) High current sink/source capability on selected pins Analog Features 10-bit Analog-to-Digital Converter (ADC) Up to 8 analog input channels Programmable voltage reference Timers and Control Three timers (Timer0, Timer1, Timer2) Capture/Compare/PWM (CCP) modules Watchdog Timer (WDT) Power-on Reset (POR) and Brown-out Reset (BOR) Communication Interfaces USART (Universal Synchronous/Asynchronous Receiver/Transmitter) SPI (Serial Peripheral Interface) I²C (Inter-Integrated Circuit) via MSSP module Electrical Characteristics Operating Voltage: 4.0V to 5.5V Operating Temperature Range: -40°C to +85°C (Industrial grade) Low power consumption modes available Package Information Package Type: PDIP (Plastic Dual Inline Package) Pin Count: 40 pins Mounting Type: Through-hole Applications Industrial control systems Embedded automation Consumer electronics Sensor interfacing and data acquisition Educational and prototyping platforms #commonpartslibrary #integratedcircuit #microcontroller

Bipolar (BJT) Transistor NPN 40V 200 mA 300MHz 625 mW Through Hole TO-92-3 The 2N3904TFR is a general-purpose NPN bipolar junction transistor (BJT) designed for low-power amplification and switching applications. It is widely used in signal processing, small-signal amplification, and digital switching circuits. This transistor offers fast switching speed, low saturation voltage, and reliable performance in a compact surface-mount package, making it suitable for consumer electronics, industrial controls, and embedded systems. Manufacturer Various (commonly ON Semiconductor / onsemi, Diodes Inc., Central Semiconductor) Part Number 2N3904TFR Transistor Type NPN Bipolar Junction Transistor (BJT) Configuration Single Package / Case SOT-23 (TO-236AB) Mounting Style Surface Mount (SMD/SMT) Collector-Emitter Voltage (VCEO) 40 V Collector-Base Voltage (VCBO) 60 V Emitter-Base Voltage (VEBO) 6 V Collector Current (IC) 200 mA (max) Power Dissipation (PD) ~200 mW to 350 mW (package dependent) DC Current Gain (hFE) 100 to 300 (typical, varies with operating conditions) Transition Frequency (fT) ~300 MHz Collector-Emitter Saturation Voltage (VCE(sat)) ~0.2 V (typical at IC = 10 mA, IB = 1 mA) Operating Temperature Range -55°C to +150°C Polarity NPN Packaging Tape & Reel (TFR suffix) RoHS Compliance Compliant #commonpartslibrary #transistor #bjt

600 Ohms @ 100 MHz 1 Ferrite Bead 0603 (1608 Metric) ferrite bead 600 ohm 0603 ferrite bead 600 ohm 100MHz 0603 ferrite bead 0603 600ohm The BLM18AG601SN1D is a surface-mount ferrite bead designed for suppression of high-frequency noise in electronic circuits. It provides high impedance at high frequencies while maintaining low DC resistance, making it suitable for power lines and signal line filtering. This component is commonly used in portable electronics, communication devices, and general digital circuits to improve EMI performance. ELECTRICAL CHARACTERISTICS Impedance: 600 Ω ±25% @ 100 MHz Rated Current: 500 mA (max) DC Resistance (DCR): 0.5 Ω (typ), 0.8 Ω (max) Insulation Resistance: 10 MΩ min PHYSICAL CHARACTERISTICS Package Size: 0603 (1608 Metric) Length: 1.6 mm Width: 0.8 mm Height: 0.8 mm (typ) Mounting Type: Surface Mount (SMD) ENVIRONMENTAL & OPERATING CONDITIONS Operating Temperature Range: -55°C to +125°C Storage Temperature Range: -55°C to +125°C APPLICATIONS Power supply line noise suppression Signal line EMI filtering Mobile devices and handheld electronics Computers and peripherals Consumer electronics FEATURES High impedance at high frequencies for effective noise suppression Low DC resistance minimizes signal/power loss Compact 0603 package suitable for high-density PCB layouts Reliable multilayer construction Lead-free and RoHS compliant PACKAGING Packaging Type: Tape and Reel Standard Reel Quantity: Typically 4000 pcs/reel #CommonPartLibrary #Filter #FerriteBead

USB-C (USB TYPE-C) USB 2.0 Receptacle Connector 24 (16+8 Dummy) Position Surface Mount, Right Angle; Through Hole USB Type-C receptacle 16 pin USB2.0 The USB4215-03-A is a USB Type-C receptacle connector designed for USB 2.0 applications. It features a 16-pin configuration supporting reversible plug orientation with standard USB 2.0 differential data lines and configuration channel (CC) pins. The connector is intended for surface-mount PCB assembly with through-hole shell stakes for enhanced mechanical strength. It is widely used in compact embedded systems for power delivery, charging interfaces, and basic data communication. Key Features USB Type-C receptacle (USB 2.0 compliant) 16 functional pins (no SuperSpeed support) Reversible plug orientation Surface-mount contacts with through-hole shell tabs Compact, low-profile design High insertion cycle durability Suitable for automated assembly Electrical Characteristics Rated Current: VBUS: up to 5.0 A (depending on PCB design and cable) Signal pins: 0.25 A max Rated Voltage: 20 V DC max Contact Resistance: ≤ 40 mΩ Insulation Resistance: ≥ 100 MΩ Dielectric Withstanding Voltage: 100 V AC Mechanical Characteristics Mounting Type: Surface Mount (SMT) with Through-Hole Shield Tabs Number of Positions: 16 Mating Cycles: 10,000 cycles (typical) Insertion Force: 5–20 N Extraction Force: 8–20 N Material Specifications Contacts: Copper Alloy Contact Plating: Gold over Nickel Housing: High-temperature thermoplastic (UL94V-0) Shell: Stainless Steel Environmental Characteristics Operating Temperature Range: -25°C to +85°C Storage Temperature Range: -40°C to +85°C RoHS Compliant: Yes Halogen Free: Yes Pin Configuration (USB 2.0 Type-C) VBUS (Power) GND (Ground) D+ / D− (USB 2.0 differential pair) CC1 / CC2 (Configuration channel) SBU pins (optional/unused in USB 2.0 designs) Applications USB power input (5 V / USB-C PD trigger designs) Embedded systems and development boards Consumer electronics Charging interfaces Low-speed USB communication devices Packaging Tape & Reel for automated pick-and-place assembly Compliance & Standards USB Type-C Specification (USB 2.0 interface) RoHS / REACH compliant UL recognized materials #CommonPartsLibrary #Connector #USB-C

10 (8 + 2) Position Card Connector Secure Digital - microSD™ Surface Mount, Right Angle Gold microSD socket push push The DM3AT-SF-PEJM5 is a low-profile, surface-mount microSD card connector from Hirose Electric featuring a push-push insertion and ejection mechanism. Designed for compact and portable electronic devices, it supports standard microSD, microSDHC, and microSDXC cards. The connector provides reliable electrical contact through gold-plated copper alloy terminals and is rated for up to 10,000 insertion/removal cycles, ensuring long-term durability. With a right-angle SMT configuration, integrated card detection switch, and robust mechanical retention, this connector is well-suited for applications such as embedded systems, IoT devices, consumer electronics, and industrial equipment where space efficiency and dependable card interfacing are critical. Product Category: Memory Card Connectors Product Type: Card Connector Subcategory: Memory Connectors & Sockets Card Type: microSD Number of Contacts: 8 Number of Rows: 1 Pitch: 1.1 mm Mounting Type: PCB Mount Mounting Style: Standard Orientation: Right Angle Termination Style: SMD/SMT Insertion / Extraction Style: Push-Push Mating Cycles: 10,000 Current Rating: 500 mA Voltage Rating: 125 VAC Contact Material: Copper Contact Plating: Gold Housing Material: Liquid Crystal Polymer (LCP) Insulation Resistance: 1 GΩ Height: 1.68 mm Length: 13.85 mm Operating Temperature Range: -25°C to +85°C Color: Black Packaging Options: Reel, Cut Tape, MouseReel Factory Pack Quantity: 1500 RoHS Compliance: Yes Country of Origin: China Country of Assembly: China Country of Diffusion: China Unit Weight: 0.003527 oz #commonpartslibrary #connector #memory #cardsocket #microsd

Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-C3-WROOM-02-N4 is a compact, general-purpose Wi-Fi and Bluetooth Low Energy (BLE) module developed by Espressif Systems. It is built around the ESP32-C3 SoC and integrates RF components, crystal oscillator, flash memory, and PCB antenna in a single module. It is designed for a wide range of applications such as IoT devices, smart home systems, industrial automation, and consumer electronics, offering a balance of performance, low power consumption, and cost efficiency. Key Features MCU & Memory 32-bit RISC-V single-core processor up to 160 MHz 384 KB ROM 400 KB SRAM + 8 KB RTC SRAM Integrated 4 MB SPI flash (N4 variant) Connectivity 2.4 GHz Wi-Fi (802.11 b/g/n) Supports Station, SoftAP, and Station + SoftAP modes Bluetooth 5 (BLE) with mesh support Data rates up to 150 Mbps (Wi-Fi) Peripherals & Interfaces Up to 15 GPIOs Interfaces: SPI, UART, I2C, I2S LED PWM ADC (SAR) Timers & watchdog USB Serial/JTAG support TWAI® (CAN 2.0 compatible) #commonpartslibrary #transceiver #module #wireless #rf

20 Hz ~ 20 kHz Analog Microphone Electret Condenser 3 V ~ 10 V Omnidirectional (-44dB ±2dB) PC Pins JLI 140A HD microphone microphone capsule The CMA-4544PF-W is an electret condenser microphone designed for compact audio capture applications. It features high sensitivity, low noise characteristics, and stable frequency response, making it suitable for voice recording, communication devices, and embedded audio systems. The device integrates a permanently charged electret diaphragm with a built-in FET preamplifier, enabling reliable signal output with minimal external circuitry. Key Features Electret condenser microphone element High sensitivity and signal-to-noise ratio Omnidirectional pickup pattern Compact, low-profile package Built-in FET impedance converter Stable performance over temperature range RoHS compliant Electrical Characteristics Operating Voltage: typically 2.0 V (range: 1.5 V to 10 V) Current Consumption: typically 0.5 mA Sensitivity: typically -44 dB ±3 dB (at 1 kHz, 0 dB = 1 V/Pa) Signal-to-Noise Ratio: typically 60 dB Output Impedance: typically 2.2 kΩ Frequency Response: 20 Hz to 16 kHz Acoustic Characteristics Directivity: Omnidirectional Maximum Sound Pressure Level: typically 110 dB SPL Equivalent Noise Level: typically 34 dB SPL Mechanical Characteristics Package Type: Through-hole cylindrical metal can Dimensions: approximately 4.5 mm diameter × 4.4 mm height Mounting Type: PCB through-hole Terminal Configuration: Two-pin (signal and ground) Environmental Specifications Operating Temperature Range: -20°C to +70°C Storage Temperature Range: -40°C to +85°C Applications Voice recording devices Mobile and handheld electronics Intercom and communication systems Embedded audio input modules IoT and consumer electronics Pin Configuration Pin 1: Output (Vout) Pin 2: Ground (GND / Case) Compliance RoHS compliant Suitable for general consumer electronics use #commonpartslibrary #audio #microphone #analog #condenser

Polymeric PTC Resettable Fuse 60V 500 mA Ih Surface Mount 2-SMD 500mA resettable fuse pptc The SMD050F-2 is a surface-mount resettable fuse (PPTC – Polymer Positive Temperature Coefficient) designed to provide overcurrent protection in low-voltage electronic circuits. It operates by increasing its resistance significantly when excessive current flows, thereby limiting current and protecting downstream components. Once the fault condition is removed and the device cools, it automatically resets to its low-resistance state, enabling normal operation without replacement. This component is commonly used in power supply lines, USB ports, battery-powered devices, and general electronic protection applications where space-saving and reliability are important. Key Features Resettable overcurrent protection (self-recovering) Surface-mount package for compact PCB layouts Low resistance in normal operation Fast response to fault conditions Automatic reset after fault removal RoHS compliant and lead-free Electrical Characteristics Hold current: 0.5 A Trip current: 1.0 A (typical) Maximum voltage: 60 V Maximum current: 40 A (fault current rating) Initial resistance: low resistance range suitable for minimal voltage drop Resistance after trip: significantly increased to limit current Thermal Characteristics Operating temperature range: -40°C to +85°C Trip time dependent on applied current and ambient temperature Reset time dependent on cooling conditions Mechanical Characteristics Package type: Surface-mount (SMD) Compact footprint suitable for dense PCB layouts Compatible with standard reflow soldering processes Applications USB and peripheral port protection Power supply and DC line protection Battery pack protection Consumer electronics Industrial control circuits Compliance and Standards RoHS compliant Halogen-free (depending on manufacturer variant) Meets industry standards for resettable fuses #commonpartslibrary #circuitprotection #ptc #fuse