transistor help

• transistor help
  Posted by rayzcam1 on 23 Jun, 2026 11:36
• Need help to identify this transistor 176 051  TO-92 body  It's a npn
• #1 Reply
  Posted by Ugur on 23 Jun, 2026 12:00
• Can you share a picture of this transistor?
• #2 Reply
  Posted by rayzcam1 on 23 Jun, 2026 14:15
• yes

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• #3 Reply
  Posted by Ugur on 23 Jun, 2026 14:38
• What device is this part used in? Are you sure it's an NPN transistor? My first thought is that it might be a J176 JFET.
• #4 Reply
  Posted by Emo on 23 Jun, 2026 15:02
• Hi,
  
  there does exist a 2sc176, a NPN Ge transistor with max 15V and Ft 10 Mhz.
  Measuring the diode voltage over the B-E junction will show if it is indeed Ge(0,3V versus 0,6V Si)
• #5 Reply
  Posted by Grandchuck on 23 Jun, 2026 17:37
• TO-92 germanium transistors are rare.
• #6 Reply
  Posted by rayzcam1 on 23 Jun, 2026 17:46
• It's in a BK 1640 power supply

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• #7 Reply
  Posted by PGPG on 23 Jun, 2026 18:04
• You have schematic without part list?
  Having schematic you should be able to select transistor to be used there.
  
• #8 Reply
  Posted by mikerj on 23 Jun, 2026 20:15
• This part drives the base of the main pass transistor which is a 2N6383 NPN darlington.  I have no idea what that exact part is, but there are numerous jellybean parts that would work fine in this position, e.g. 2N3904.
• #9 Reply
  Posted by rayzcam1 on 23 Jun, 2026 20:42
• Thank you!
• #10 Reply
  Posted by mikerj on 23 Jun, 2026 21:29
• Check pin outs carefully, they may not match the original so you may need to bend the pins and/or rotate the new device to shift the pins into the correct places.