Hi

I have a circuit board that I'm trying to identify two components circled red in the image. They're both physically identical and look like diodes but larger in size to a typical one (circled yellow). The values are difficult to ascertain but as far as I can make out, I see 261-211, Underneath is stamped RS.

This is an old circuit and the components could be obsolete so perhaps equivalents are available?

Any help would be appreciated

 

They look like normal 3 amp diodes but they could be zener diodes or some other type of diode. Trace out the schematic of the circuit containing the diode, From that you should be able to decide their function and therefore the type of diode it is likely to be. You have a better chance of identifying them as you can see the whole board and probably know the function of the board.

Les.

 

Probably these:
https://sa.rsdelivers.com/product/vishay/-/silicon-diodes-by127mgp/0261211