Electronics > Projects, Designs, and Technical Stuff
Transistor question
Gazucha:
Hola,
I have a project which has two 450V 10A NPN transistors in the circuit and I haven't found a suitable data-sheet.
One is stuffed. Which is being changed.
On a diode test, the other reads 0.385 and 0.502 when measured, which seems to me to be a large difference.
So, the question is,
is the transistor still within functionable parameters with those readings, or could it possibly fail alongside a new partner?
Cheers.
Alana:
First - do you mesure it desoldered completely?
Gazucha:
Hi,
Yeah, desoldered completely. On the bench.
Gazucha:
The reason I ask is that if those readings were on, say a BC547, then I would consider it failing...
and the high voltage, high amperage, transistor field is not my comfort zone.
I would imagine it would work, but unless someone knows different, then I'm not mad on having such an imbalance in the transistors, as I am fairly sure that the new transistor (C4237) will read 0.600+ on from B to both C & E pins.
Alana:
I'd do the very same thing - if BE and BC are so different its usually faulty. To be sure try to turn a light blub with that transistor - if it works it may be ok but i doubt that.
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