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Topic: Transistor question (Read 526 times) previous topic - next topic

Gadget999

i have a 2N5551

pins

1 Emitter
2 Base
3 Collector


connected as follows


3 +15 v
2 +6v
1 is reading +6 v

i would have expected 1 to read the collector voltage of +15v


Grumpy_Mike

Quote
i would have expected 1 to read the collector voltage of +15v

Why?

The voltage on the emitter is always 0.7V less than the voltage on the base.

Are there no resistors in this circuit? If not you have just blown it up.

Njay


The voltage on the emitter is always 0.7V less than the voltage on the base.


In a NPN transistor.

Grumpy_Mike

Yes in an NPN transistor. In a PNP it is always 0.7v greater than the base.

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