N-Channel 30 V 5.7A (Ta) 1.4W (Ta) Surface Mount SOT-23-3 The AO3400A N-Channel MOSFET is a 30V N-channel enhancement-mode MOSFET designed using trench MOSFET technology. It is widely used for load switching, DC-DC converters, motor driving, and PWM control applications due to its very low on-resistance and compact SOT-23 package. It is especially popular in small electronics and embedded systems because it can be driven directly by 3.3V or 5V logic signals, making it ideal for microcontroller-based designs. Key Features Drain-Source Voltage (VDS): 30V Continuous Drain Current (ID): up to 5.7A (at 25°C) Ultra-low RDS(on): ~26.5 mΩ @ VGS = 10V ~32 mΩ @ VGS = 4.5V ~48 mΩ @ VGS = 2.5V Logic-level gate drive (works well with MCU GPIOs) Fast switching performance (ns-range switching times) Low gate charge (~6–7 nC) → efficient switching Compact SOT-23 package for space-saving PCB design Low power dissipation (~1.4W typical at 25°C ambient) Operating temperature: −55°C to +150°C Typical Applications Load switching (LEDs, sensors, small motors) Power management in battery-powered devices DC-DC converters PWM control circuits Fan and heater control in embedded systems #AO3400A #MOSFET #NChannelMOSFET #PowerElectronics #SOT23 #LoadSwitch #EmbeddedSystems #ElectronicsComponents #TrenchMOSFET #Commonpartslibrary #Transistor #FET

0.1uF 0402 (1005 metric) fixed ceramic SMD capacitor #CommonPartsLibrary #Capacitor #GCM155R71H

0.1 µF ±10% 50V Ceramic Capacitor X7R 0603 (1608 Metric) #CommonPartsLibrary #Capacitor #SMD

10uF 0402 (1005 metric) fixed ceramic SMD capacitor #CommonPartsLibrary #Capacitor #GRM155R60J

330 Ohms ±5% 0.167W, 1/6W Through Hole Resistor Axial Carbon Film #CommonPartsLibrary #Resistor #THT #Axial

Diode 1000V 1A Through Hole Axial #CommonPartsLibrary #Diode #Rectifier #1N4007

USB-C (USB TYPE-C) USB 2.0 Receptacle Connector 24 (16+8 Dummy) Position Surface Mount, Right Angle; Through Hole The USB4105-GF-A is a USB Type-C receptacle connector designed for USB 2.0 applications, commonly used in embedded systems, IoT devices, and consumer electronics. It features a 24-position (16 active + 8 dummy) contact design that supports reversible plug orientation, making it user-friendly and compliant with USB Type-C standards. This connector is a right-angle, surface-mount (SMT) device with through-hole retention tabs, providing both compact PCB integration and strong mechanical stability. Key Features USB Type-C Interface Reversible plug orientation (no wrong insertion) Standard USB Type-C receptacle Supports USB 2.0 signaling Contact Configuration 24 pins total (16 active + 8 dummy pins) Includes: Power (VBUS) Ground (GND) USB 2.0 data (D+, D−) Configuration channel (CC) Electrical Capability Supports multiple current levels (up to 5A depending on design) Rated voltage up to 48V DC Mechanical Design Right-angle (horizontal) mounting Surface-mount + through-hole hybrid Includes: Board guide Solder retention tabs (strong anchoring) Durability & Materials Shielded metal shell (EMI protection) Contact finish: Gold plating Housing: UL94 V-0 flame rated Mating cycles: ~20,000 insertions Environmental Specs Operating temperature: -40°C to +85°C RoHS compliant (lead-free) Typical Applications Microcontroller boards (ESP32, Arduino, etc.) Charging + data interface for embedded devices Power + USB communication ports Consumer electronics (gadgets, accessories) #CommonPartsLibrary #Connector #USB #DVI #USB4105 #USB-C

PC Test Point, Compact Phosphor Bronze Silver Plating Surface Mount Mounting Type Generic Test Point #commonpartslibrary #testpoint #SMD

Bipolar (BJT) Transistor NPN 40V 200 mA 300MHz 300 mW Surface Mount SOT-23-3 (TO-236) The MMBT3904LT1G is a general-purpose NPN bipolar junction transistor designed for switching and amplification applications. It is housed in a compact SOT-23 surface-mount package, making it suitable for high-density PCB designs. This transistor is widely used in low-power signal processing, digital switching, and analog amplification circuits due to its reliable performance and fast switching characteristics. Key Features General-purpose NPN transistor Compact SOT-23 surface-mount package Fast switching speed Low saturation voltage Suitable for low-current and low-power applications High reliability and stability Pb-free, Halogen-free, and RoHS compliant Electrical Characteristics (Typical @ 25°C unless otherwise specified) Collector-Emitter Voltage (VCEO): 40 V Collector-Base Voltage (VCBO): 60 V Emitter-Base Voltage (VEBO): 6 V Collector Current (IC): 200 mA (max) DC Current Gain (hFE): 100 – 300 Collector-Emitter Saturation Voltage (VCE(sat)): 0.2 V (typ) Transition Frequency (fT): ~300 MHz Absolute Maximum Ratings Collector Current (Continuous): 200 mA Power Dissipation: ~225 mW Junction Temperature: +150°C (max) Operating Temperature Range: -55°C to +150°C Storage Temperature Range: -55°C to +150°C Mechanical Characteristics Package Type: SOT-23 (TO-236AB) Mounting Type: Surface Mount Number of Pins: 3 Marking Code: Dependent on lot/manufacturer marking Applications General-purpose switching circuits Signal amplification Digital logic interfacing LED drivers and small load switching Audio and RF signal processing #CommonPartsLibrary #TransistorBJT #MMBT2222

Bipolar (BJT) Transistor NPN 300MHz Through Hole TO-92_Inline #CommonPartsLibrary #TransistorBJT

Green 573nm LED Indication - Discrete 2V 0603 (1608 Metric) #commonpartslibrary #optoelectronic #led #WL-SMCD #150060

JST PH SMD Connector Header Surface Mount, Right Angle 2 position 0.079" (2.00mm) The S2B-PH-SM4-TB(LF)(SN) is a surface-mount, 2-position wire-to-board header connector from the JST PH series. It is designed for compact and reliable connections in low-current, signal, and power applications. With a 2.0 mm pitch and secure friction-lock mechanism, this connector ensures stable mating with corresponding PH series crimp housings. The connector features side-entry (horizontal) orientation and solder tabs for enhanced PCB retention, making it suitable for automated assembly and high-vibration environments. Key Features 2-position connector (2 circuits) 2.0 mm pitch spacing Surface-mount, right-angle (side entry) configuration Friction-lock mechanism for secure mating Solder hold-down tabs for mechanical stability Compact, low-profile design Compatible with JST PH series housings and terminals Tape & reel packaging for automated assembly Mechanical Characteristics Mounting Type: Surface Mount (SMT) Orientation: Right Angle (Side Entry) Pitch: 2.0 mm Number of Positions: 2 Mating Type: Friction lock Board Retention: Solder tabs (SM4 type) Electrical Characteristics Rated Current: 2 A (per contact, AWG #24) Rated Voltage: 100 V AC/DC Contact Resistance: ≤ 20 mΩ (initial) Insulation Resistance: ≥ 100 MΩ Withstanding Voltage: 800 VAC/minute Material Specifications Insulator: Polyamide (Nylon), UL94V-0 rated Contact Material: Copper alloy Contact Plating: Tin over nickel (Sn plating) Environmental Specifications Operating Temperature Range: -25°C to +85°C Storage Temperature: -40°C to +85°C Packaging Information Packaging Type: Tape & Reel (TB suffix) Lead-Free: Yes (LF) Surface Finish: Tin plating (SN) Compatible Components Mating Housing: JST PH series (e.g., PHR-2) Crimp Terminals: SPH-002T-P0.5S or equivalent Typical Applications Consumer electronics Battery connections Signal and low-power connections Embedded systems and IoT devices Portable and compact electronic assemblies #commonpartslibrary #connector #header #tht

12 MHz ±30ppm Crystal 10pF 50 Ohms 4-SMD, No Lead #CommonPartsLibrary #Crystal #Oscillator #Resonator

0.1 µF ±10% 16V Ceramic Capacitor X7R 0402 (1005 Metric) #CommonPartsLibrary #CeramicCapacitors