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Default Root cause insight into the common BMW blower motor resistorfailures

On Thu, 21 Mar 2013 15:16:46 -0400, Scott Dorsey wrote:

there are two TO-3 devices there which have been removed
in all of those photos.


I don't know what a "TO-3" device is, but nobody removed anything
in those photos other than the goop that covered the circuit board.

has anyone got docs on that mystery IC there? It's from Elmos
Semiconductor, but it's not a standard Elmos part number on it


Focusing just on that Elmos Semiconductor AG IC from this thread:
http://www.bimmerfest.com/forums/sho...d.php?t=309399
It looks like the PN is ELMOS, 10901D, 667A 1302A

It might be a generic or a special chip; I can't find it on the web:
http://www.elmos.com/produkte/automo...motor-ics.html