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Electronic Components Datasheets, aplication data, analogue.

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Old 03-16-2016, 09:55 AM   #1
rapid
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Default Identify this transistor?

Im trying to repair an identical board, and need to find the components below the 4 pin socket connector (which I'm also trying to find the exact part number for if anyone can recognize it). More importantly I need to figure out what the 3 Pin IC below the socket is, which looks like some sort of transistor.

The marking is "ADZV" horizontally (with a line above the Z), and "1Y" vertically. The only thing I could come up with was with the 1Y marking, and that lead me to a NPN transistor packaged as an SOT23.

Also the tiny resistors below the socket are 0403 size correct?
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Old 03-21-2016, 04:05 PM   #2
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Best I could come up with for 1Y is Motorola MMBT3903
https://www.sos.sk/pdf/SMD_Catalog.pdf
See page 12
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