Darlington NPN Transistor (TIP122)

The TIP122 is a Darlington pair NPN transistor. It functions like a normal NPN transistor, but since it has a Darlington pair inside it has a good collector current rating of about 5A and a gain of about 1000. It can also withstand about 100V across its collector- Emitter hence can be used to drive heavy loads.

• Darlington Medium-power NPN Transistor
• High DC Current Gain (hFE), typically 1000
• Continuous Collector current (IC) is 5A
• Collector-Emitter voltage (VCE) is 100 V
• Collector-Base voltage (VCB) is 100V
• Emitter Base Voltage (VBE) is 5V
• Base Current(IB) is 120mA