A google search yielded the following:

$29
http://theelectrostore.com/shopsite_sc/store/html/ks524505-powerex-qm50ha-h=
-mitsubishi-new.html

-Scott


On Thu, Sep 27, 2012 at 10:38 AM, Henrique Ribeiro de Oliveira
<henrique.ro@gmail.com> wrote:
> Anyone know where I can buy those? Or a module that can do the job ?
>
> It's for a ROMI CNC turning center. I'm not an expert but this module
> should switch the energy (maybe from the braking) to a discharge resistor=
..
>
> The specs from the datasheet.
> 50A/600v
> *has base-emitter a speed-up diode
>
> http://www.esg-modules.com/datasheet/KS524505.pdf
>
>
>
> Found on amazon for $217.85 and I think this is too much.
>
> Thanks
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