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need help identifying a transistor

trex666

Jun 3, 2024
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it appears to be a C945 NPN I just want to make sure the other numbers don't mean anything

K-244
C945
P
 

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bertus

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Nov 8, 2019
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Hello,

On japanese transistors the 2S is often ommitted.
Your transistor is most likely an 2SC945:

Bertus
 

trex666

Jun 3, 2024
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Hello,

On japanese transistors the 2S is often ommitted.
Your transistor is most likely an :

Bertus
So I’m I looking for 2SC945 not the C945 or are they the same
 

Delta Prime

Jul 29, 2020
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So I’m I looking for 2SC945 not the C945 or are they the same
photo_1717466121326.png

Look these two pages carefully the numbers.Yes they're the same. Can you imagine all the different manufacturers out there sometimes they even put their own number on it... And let me go back and get you that data sheet .
I don't recognize 90% of the manufacturers on those two pages. wow!
photo_1717465904551.png
 
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Delta Prime

Jul 29, 2020
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It's the wild west now.they did a generation ago. You and me are literally standing on the shoulders of giants. I think that datasheet from NEC might have been a little bit too big. There you go buddy you can try digi-key Mauser things like that, if you in the United States. You got to get used to finding components and where to buy them it's actually kind of fun. I'm on the back end of 20 years old this is all going to be gone by the time I get my sheepskins in multiple scientific disciplines . electronics is just fun.
 

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Bluejets

Oct 5, 2014
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If you had a component tester ($20) you could simply clip it in, check parameters and select from possibly a gazillion replacement possibilities.
 
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