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RE: [TCML] CM300 with current limiting, good, bad?
I was interested in their faster performance. I find it weird they don't list the exact cutoff current. They must know that they are capable of handling more than the rated current for short periods.
They are the newer ones as well and they have the newer package types. I was thinking of designing some 4 layer pcb's for them to eliminate all the buss bars. I guess that's an invitation to try them out with limiter still connected and see how they work.
> Date: Tue, 28 Jul 2009 22:15:44 -0500
> Subject: Re: [TCML] CM300 with current limiting, good, bad?
> From: steve.ward@xxxxxxxxx
> To: tesla@xxxxxxxxxx
> In the past i have opened those modules and snipped the bond wires to
> disable the RTC limiter.
> Those modules are nice because they are lower ESL, and trench technology, at
> the same time the thermal impedance is higher because the die area is
> smaller. I dont have enough test data to say whether they are as robust as
> the CM300DY-24H.
> On Tue, Jul 28, 2009 at 1:15 PM, Tom Blitch <tab54o@xxxxxxxxxxx> wrote:
> > Hey guys, Not sure what took my so long to sign up for this mailing list.
> > Anyway There a bunch of Powerex and Mitsibishi CM300Du-24F IGBT's on Ebay
> > right now and I am tempted to grab a few except they are the ones with
> > current limiting. Ive seen a few other manufacturers and models datasheets
> > that say thier limiters don't limit till 5 to 6 times the rated current but
> > powerex nor mitsubishi has this listed in thier datasheets.
> > Anyone here had any experience with these? The listing is here. This isn't
> > my listing by the way.
> > http://cgi.ebay.com/Mitsubishi-CM300DU-24F-IGBT-Modules-300Amp-1200Volt_W0QQitemZ260360966780QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3c9eb9127c&_trksid=p3911.c0.m14
> > -Tom Blitch
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