Electronics > Projects, Designs, and Technical Stuff

Transistor question

(1/2) > >>

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.

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod