27 Jul
2005
27 Jul
'05
5:53 a.m.
On Tue, 26 Jul 2005 22:38:18 -0400 Chuck Swiger
<cswiger at widomaker.com> wrote:
[...]
Anyway it's blowing fuses - traced it to a shorted
diode in a power
supply, marked
(Motorola Symbol)
ZP
1N
540
905
Don't think it's a 1N540 - top hat silicon - this one just looks
like a
fat 1N4007 cylinder. Not a 1N5409. 1N540905 doesn't exist in
google-world. ---(==(---
Any tips, actually just want ratings for replacement TIA
--Chuck
You might want to look at ONSemi.com (ex Motorola). Entering 1N540
gets a listing for 1N540x. The data sheet shows a diode as described
with the markings similar to that above, except that you seem to be
missing a trailing character on each of the numeric lines. This is a
series of 3 amp diodes with various voltage ratings. If you can't
make out the training number, either go for the highest rating or
measure the open circuit voltage that feeds the diode. Hope this
helps...
CRC