Where to use darlington npn transistor TIP120?
‘’What is TIP120?’’ You may ask, well, technially, which is in a boring way, the TIP120 is a Darlington pair NPN transistor. It functions like a normal NPN transistor, but since it has a Darlington pair inside it has good collector current rating of about 5A and a gain of about 1000. It can also withstand about 60V across its collector- Emitter hence can be used to drive heavy loads. And by the way, it looks like this:(just like ever other normal transistor)
So, here’s may come another question,”what can i use it for?’’
First of all, it need to be cleared that TIP120 transistor is known for its high current gain (hfe = 1000) and high collector current (IC =5A), therefore, it is normally used to control loads with high current or in applications where high amplification is required. Which is to say, this transistor has a low Base-Emitter Voltage of only 5V, so it can be easily controlled by a Logic device like microcontrollers. Although care has to be taken to check if the logic device can source upto 120mA.
So, if you looking for a transistor that could be easily controlled by a Logic device to switch high power loads or to amplify high current, then this transistor might be an ideal choice for your application.
Okay that’s all for today’s ic chip time, if you are enjoying it, man you are kowledgeable(sir stop bragging), if you don’t, well, i guess i can’t do nothing about it xD.
If you wanna know more about this ic, here is the key to TIP120>>
