I ask about one 12v tvs-diode of ST-electronics manufacture - Bux c543. It was found on sp0812n samgung 80 gb hdd
and was soldered through due to overvoltage from psu. Now I need to relace it, but I cannot find any info in the internet on bux series tvs (just the 543- is date marking).
So I want to ask for what another tvs I could replace, could it be any 12v tvs or similar ones? Can you provide any technical characteristics of bux c543 type tvs?
For example data-sheet?
What is critical electrical characteristics of it?
On the internet forum I was proposed to use SMBJ12A diode,
is it appropriate replacement. My master after unsoldering defect bux c543
replaced it temporarily for M545 16a -- could it work temporarily?