The TIP122 is a high-gain NPN Darlington power transistor designed for switching and amplification applications. With a collector-emitter voltage rating of 100V and current handling up to 5A, it's ideal for driving motors, relays, solenoids, LEDs, and other medium to high-power loads.
Commonly used in Arduino and microcontroller projects, this transistor simplifies circuit design by combining two transistors in a single TO-220 package for higher gain and output. It’s a popular and cost-effective choice in the Bangladesh electronics market for DIY and industrial control systems.
Transistor Type: NPN Darlington
Collector-Emitter Voltage (Vce): 100V
Collector Current (Ic): 5A continuous
DC Current Gain (hFE): 1000 (typical)
Package: TO-220
Saturation Voltage: 2V (max)
Applications: Motor drivers, relay switching, LED control, audio amps, power regulation
