Identifying Diode
Identifying Diode
(OP)
Hello, I am attempting to repair an audio mixer. The manufacturer will not release the schematic and the board needing repairs is two sided, so I am somewhat reluctant to map out the schematic. The board is a 17/48 volt supply/regulator board. At some point the wires from the external transformer (20V, CT, 20V) became crossed, which blew a filter cap and a diode. The problem being, I cannot identify the numbers on the diode, the only info I have is that it says "51V" below on the PCB, and it is a small red glass diode, similar package to a general purpose 1N914. I tried using a 1N914 and one of the V regs started smoking (7815A). Thanks to any who help me..... Justin Roth
JMR Productions
JMR Productions





RE: Identifying Diode
RE: Identifying Diode
Philips used to indicate zener voltage in 100 mV increments and 51 would be 5.1 V. 51 V is not a very common zener voltage, but 5.1 V is.
RE: Identifying Diode
RE: Identifying Diode
RE: Identifying Diode
NTE Device Number: NTE5089A
ZD-51.0V,1W,DO-41
RE: Identifying Diode
Cuz both come in the DO-41 package.