Humidity Temperature Sensor 20 ~ 80% RH Digital ±5% 1s Through Hole #commonpartslibrary #sensor #integratedcircuit

Bipolar (BJT) Transistor NPN 40V 200mA 300MHz 350mW Surface Mount SOT-23 The MMBT3904-TP is an NPN general-purpose bipolar junction transistor (BJT) in a SOT-23 surface-mount package. It is a compact SMD version of the classic 2N3904, designed for switching and low-power signal amplification in a wide range of electronic circuits. It is commonly used in embedded systems, consumer electronics, and PCB designs where small size and reliable switching performance are required. Key Features NPN Bipolar Junction Transistor (BJT) Suitable for switching and amplification applications SOT-23 Surface-Mount Package Compact footprint for high-density PCB designs Collector-Emitter Voltage (Vceo) Typically up to 40V Collector Current Up to 200 mA continuous Low Power Operation Designed for small signal and low-power switching tasks High Gain (hFE) DC current gain typically 100–300 Fast Switching Capability Suitable for digital and pulse applications Wide Operating Temperature Range Typically -55°C to +150°C High Reliability Stable performance for general-purpose use RoHS Compliant Environmentally compliant manufacturing Typical Applications Signal switching in digital circuits LED driving circuits Small relay or load switching Sensor interface circuits General-purpose amplification stages 2N3904 SOT-23 #CommonPartsLibrary #Transistor #BJT #NPN #MMBT3904

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

8 Position Card Connector Secure Digital - microSD™ Surface Mount, Right Angle Gold #commonpartslibrary #connector #memoryconnector #pccardsocket

Mechanical Encoder Rotary Incremental Flat 10mN.m Straight Quadrature Digital Square Wave 15PPR Through Hole PC Pin #commonpartslibrary #connector #encoder #switch

Humidity, Pressure, Temperature 0 ~ 100% RH I²C, SPI ±3% 1 s Surface Mount The BME280 integrates three sensors—temperature, relative humidity, and pressure—along with a high-performance digital interface. It communicates via I²C or SPI, making it easy to interface with microcontrollers like Arduino, ESP32, and STM32. It is designed for low power consumption, making it suitable for battery-powered applications such as portable weather stations and smart home devices. Key Features Environmental Sensing Measures: Temperature Relative Humidity Barometric Pressure Enables altitude estimation based on pressure readings High Accuracy Temperature: ±1.0°C (typical) Humidity: ±3% RH (typical) Pressure: ±1 hPa (typical) Low Power Consumption Typical current: ~0.6 µA (sleep mode) ~3.6 µA (measurement mode) Ideal for battery-operated devices Communication Interfaces Supports: I²C (up to 3.4 MHz) SPI (3-wire / 4-wire) Easy integration with most microcontrollers Compact Package Small footprint: 2.5 × 2.5 × 0.93 mm LGA package Suitable for space-constrained designs Built-in Features Factory-calibrated coefficients stored in NVM Configurable oversampling and filtering Integrated ADC for high-resolution measurements #commonpartslibrary #sensor #humidity #pressure

Temperature Sensor Digital, Local -55°C ~ 150°C 16 b 6-WSON (2x2) #commonpartslibrary #integratedcircuit #temperaturesensor

10 Bit Analog to Digital Converter IC 8 Input 1 SAR 16-DIP #commonpartslibrary #integratedcircuit #analog #digital #converter