Diode 1N 540 905

[CRC]

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