Hello friends, I hope you all are doing great. Today, I am going to share the new TIP122 Darlington Library for Proteus . The TIP122 is the transistor almost every Arduino maker reaches for when a pin has to switch something big: a 12 V motor, a solenoid, an LED strip, a heater. It needs only a few milliamps on its base to carry amps through its collector, it comes in the sturdy TO-220 package that bolts onto a heatsink, and it costs very little. Updates TIP122 Darlington Library for Proteus Latest version: V1.0 (November 2026, this tutorial) Other component libraries: C945 Transistor · PC817 Optocoupler · Relay Module · Resistor · 5 mm LED · Designer Colour LED · Push Button · Active Buzzer · Electrolytic Capacitor · Ceramic Capacitor · Tantalum Capacitor · Film Capacitor · 1N4007 Diode · ...