Hello i am trying to reverse engineer a PCB but i have a problem identifying an SOT23 component.
Given that SOT23 components usually are diodes or transistors i tried measuring the diode voltages to identify the nature of the component.
In the first ic i got the following results
1(+) --> 2(-) Forward Biased Diode 960mV
1(+) --> 3(-) Forward Biased Diode 960mV
3(+) --> 2(-) Forward Biased Diode 960mV
See problem is the third measurement which if it was an NPN transistor it should be open circuit but it displays a forward voltage of 960mV i do not know if the component is busted or not so that is another problem
There is an identical component above (Markings are 493) and i got the readings below from it.
1(+) --> 2(-) Forward Biased Diode 960mV
1(+) --> 3(-) Forward Biased Diode 960mV
3(+) --> 2(-) Open Circuit
Which tells me that it should be an NPN transistor.
Again i am not sure if both components are operational thank you in advance.