IDing parts that look like power transitors

Thread Starter

electronis whiz

Joined Jul 29, 2010
512
i have a bunch of parts that look like power transistors but i'm not sure
i look up using the #s online but yet to find some

hswc
2scf4242
gft


sec
604
c2335-r
the priveus ones were on heatsinks so i'm thnking shockety or vreg not sure though

another looks like an old metal case transistor. has A23, 380-3, 449 on it. a saw a pic of a traic that looked just like this too though. the lastic holder has a B and an E by 2 terminals. and it has a resistor between these then the E terminal has a ceramic cap and a part that apears to be a diode going to a screw holding it on. what do you think this is?
i was guesing transitor but where's the colector? or is the case th colector.

i pull these type parts alot and i'm getting tired of having to google every one. i try to use all data sheets but they only have about 60% of them.
do the numbers mean anything. E.G. 111-444 mean it is a transistor. then 555-888 is a voltage vegulator. or do i just need to look them up?
 
Last edited:

praondevou

Joined Jul 9, 2011
2,942
Could it be:

2sc4242
2sc2335

?

These you find on alldatasheets.com

Can you post a picture of the last one you were talking about?
 
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