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

Display Modules - LED Character and Numeric Red 7-Segment 1 Character Common Cathode 2V 20mA 0.512" H x 0.386" W x 0.148" D (13.00mm x 9.80mm x 3.75mm) 10-SMD, No Lead #Commonpartslibrary #optoelectronic #LEDcharacter #module

Red, Green, Blue (RGB) 624nm Red, 525nm Green, 470nm Blue LED Indication - Discrete 2.1V Red, 3.35V Green, 3.35V Blue 0606 (1616 Metric)

LED Driver IC 16 Output Linear PWM Dimming 25mA 28-TSSOP

LED Driver IC 1 Output DC DC Controller Step-Down (Buck) Analog, PWM Dimming 10-HVSSOP #commonpartslibrary #integratedcircuit #powermanagement #leddriver

555 Type, Timer/Oscillator (Single) IC 100kHz 8-PDIP NE555 DIP-8 through hole The NE555P is a classic and widely used precision timer IC manufactured by companies like Texas Instruments and others. It belongs to the popular 555 timer family and is designed for generating accurate time delays, oscillations, and pulse signals. The “P” variant refers to the PDIP (Plastic Dual In-line Package), making it ideal for through-hole mounting, breadboarding, and prototyping. NE555P PDIP-8 timer Internally, the NE555P consists of: Two comparators A flip-flop A discharge transistor A voltage divider network These blocks allow flexible configuration for timing and waveform generation. Key Features Timing & Operation Modes Monostable mode (one-shot pulse generation) Astable mode (continuous oscillator) Bistable mode (flip-flop operation) Electrical Characteristics Supply voltage range: 4.5V to 16V Output can source or sink up to 200 mA Adjustable duty cycle Performance High timing accuracy and stability Timing range from microseconds to hours (depends on external R and C) Temperature-stable operation Package & Usability 8-pin DIP (through-hole) package Easy to use for: Breadboards DIY electronics Educational projects Common Applications LED flashers and blinkers Pulse generation Time delay circuits PWM control (e.g., dimming LEDs, motor speed control) Tone/sound generation #Timer #commonpartslibrary

Modular Connectors / Ethernet Connectors GIGABIT 1x1 Tab Down RJ45 w/mag No LED #CommonPartsLibrary #Connector #Modular-Connector #RJ45 #Ethernet

Red, Green, Blue (RGB) 620nm Red, 524nm Green, 471nm Blue LED Indication - Discrete 2V Red, 2.95V Green, 2.85V Blue 4-PLCC #commonpartslibrary #led

LED Driver IC 16 Output Linear Shift Register Dimming 120mA 32-VQFN (5x5) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LED-Driver #TLC5940

LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Analog, PWM Dimming 1A TSOT-25 #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LED-Driver #AL8860

Addressable Lighting - 1 LED Discrete Red, Green, Blue (RGB) 1.50mm L x 1.50mm W #commonpartslibrary #led #rgb

APA102-202 Super LED

LED Driver IC 16 Output Linear PWM Dimming 25mA 5.5V 28-TSSOP PCA9685PW,118 is a 16-channel, 12-bit PWM LED controller with an I²C interface designed for LED dimming, RGB/RGBA lighting, and servo motor control applications. It provides independent PWM control for up to 16 outputs, allowing precise brightness or position control while minimizing MCU GPIO usage. The device supports Fast-mode Plus I²C communication up to 1 MHz and operates from a 2.3 V to 5.5 V supply range. It is commonly used in robotics, LED backlighting, automation systems, and PWM expansion modules for microcontrollers such as Arduino, ESP32, and Raspberry Pi. Key Features 16 independent PWM output channels 12-bit PWM resolution (4096 steps) Programmable PWM frequency from approximately 24 Hz to 1526 Hz I²C Fast-mode Plus compatible interface up to 1 MHz Six hardware address pins allowing up to 62 devices on one I²C bus Programmable open-drain or totem-pole outputs Output capability: 25 mA sink current 10 mA source current Internal 25 MHz oscillator with optional external clock input Individual programmable LED ON/OFF timing for reduced EMI and current surges Supports software reset and group addressing (All Call/Sub Call) 5.5 V tolerant inputs and outputs Operating voltage range: 2.3 V to 5.5 V Package: 28-pin TSSOP (PW suffix) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LEDdriver