Any chance its an IGBT?? They sometimes tend to resemble a Darlington
depending on who drew the schematic.
Bob Smith
--- Avoid computer viruses, Practice safe hex ---
-- Specializing in small, cost effective
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Robert L. (Bob) Smith
Smith Machine Works, Inc.
9900 Lumlay Road
Richmond, VA 23236 804/745-1065
[EMAIL PROTECTED]
----- Original Message -----
To: "Multiple recipients of list CHIPDIR-L" <[EMAIL PROTECTED]>
Sent: Thursday, June 05, 2003 10:24 AM
> I stuck my nose into a drive from a (Japanese?) Milling Machine, and
> came out holding a dud transistor module. The Markings are
>
> P 50 Z
> No: 1604
>
> They all say No: 1604. The label shows a darlington class B stage made
> with NPN Bipolar transistors, and with reverse diodes incorporated. It
> runs from a DC bus. Absolutely no manufacturer's markings or logo, and I
> smell a spacial part here. It's three phase ~200V phase to phase, so the
> most believable guess at the '1604' bit would be 160Amps/400Volts
>
> Can anyone throw me a bone with this one?
>
> --
>
> With best Regards,
>
>
> Declan Moriarty.
> --
> Author: Declan. Moriarty
> INET: [EMAIL PROTECTED]
>
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--
Author: Robert Smith
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