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SMD marking codes / PH3o / 3103-T marking code of SOT-223 device

« on: 27 August 2017, 17:46:29 »

Hi everybody,

I have a hard time to find out what this device is. Seems to be an NPN transistor, but not 100% sure as I don't want to remove it from the PCB.

Thank you very much in advance for helping me resolve this enigma