please help me identify the elements.
first with a blue stripe.
second with a black one and the inscription A81C or A810 or 018V
This is from a power supply for 24V and 48V
The body style of those diodes would be called ‘MELF’.
The only other comment I have is if you have a Zxx reference designator next to a diode you’re probably dealing with a Zener diode.
Unfortunately I’m not sure what voltage zener you’ve probably got there.
thank you very much for the answer. the one with the blue stripe has zero resistance in both directions. maybe this will help to identify it?