This transistor is known for its high current gain (hfe = 1000) and high collector current (IC =5A) hence it is normally used to control loads with high current or in applications where high amplification is required. This increases the current gain and current rating of this transistor. The Darlington pair inside this transistor is shown clearly as its internal circuit schematic belowĪs you can see, there are two transistors inside this TO-220 package in which the emitter of the first transistor is connected with the base of the second transistor and the collector of both transistors are connected together to form a Darlington pair.

It can also withstand about 100V across its collector- Emitter hence can be used to drive heavy loads. 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. The TIP122 is a Darlington pair NPN transistor. Note: Complete Technical Details can be found at the TIP122 datasheet given at the end of this page.īC549, BC636, BC639, BC547, 2N2369, 2N3055, 2N3904, 2N3906, 2SC5200

Collector-Emitter voltage (VCE) is 100 V.

Continuous Collector current (IC) is 5A.High DC Current Gain (hFE), typically 1000.Controls the biasing of transistor, Used to turn ON or OFF the transistorĬurrent flows in through collector, normally connected to loadĬurrent Drains out through emitter, normally connected to ground

Daftar persamaan ic dan transistor