TIP120 is a three-layer NPN device within the working range, the collector current IC is a function of the base current IB, a change in the base current giving a corresponding amplified change in the collector current for a given collector-emitter voltage VCE.
Features:-
- Low saturation voltage
 - Simple drive requirements
 - High safe operating area
 - For low-distortion complementary designs
 - Easy to carry and handle
 




