bananasiong
New Member
audioguru said:No. Look at the datasheet. At a collector current of 3A and a base current of 300mA, the base-emitter voltage is typically about 1.0V and could be as high as 1.5V. At 6A it is higher.
Where is it? Under 'ON characteristics > Base-emitter On viltage' ?? I see that it is 2Vdc.. Or under the graph? I still don't know which part of the datasheet to read..
So, you mean the base current must be 1/10th of the collector current, not more than or less than that?Wrong. Of course the base current is extremely important. If it is more than 1/10th of the collector current then the base-emitter junction might fail. If it is less then the transistor might not turn on hard enough then it will have a voltage across it and a high current through it which makes a lot of heat in it.
I want to learn more about BJT first, since I've learned some about BJT before. I will learn MOSFET after this.Hero999 said:I don't see why you're messing around with BJTs, a MOSFET is probably more suited to your application.
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