Hello,
I am attempting to repair a Cebora Power Rod 1565 welder. This is a switched mode type device.
One of the power MOSFETS is visabely blown. Where could I start looking for a supplier of this device. I only want a one off.
Type W20NB50 made by ST.
Thanks for any help.
The company Cebors has a site at
They supply a service manual to Authorized dealers only :-(
Andy
It's a common enough type with suitable substitutes also made by most major power semi vendors.
Maybe if you said which country you live in I could help advise a source.
Graham
snipped-for-privacy@volcanomail.com wrote in news:1168308527.848268.122730 @s34g2000cwa.googlegroups.com:
Digi-Key says: MOSFET N-CH 500V 20A TO-247 made by STMicroelectronics
but they don't stock it.
The NTE cross-reference at
says you can replace it with an NTE2970, but that doesn't seem to be stocked either.
Anyone?
Make sure you check the rest of them as well, if one is blown, chances are more are bad.
These are pretty much generic parts. Not sure what the B means but most 20N50s should do the job I'd reckon.
Graham
Farnell don't have 20n50s but do have 20n60s.
Don't mix up the IGBTs and mosfets. Also check what IR and STM have.
Graham
On 8 Jan 2007 18:08:47 -0800, snipped-for-privacy@volcanomail.com put finger to keyboard and composed:
Try RS Components, part number 248-4242, ST part number STW20NB50.
Datasheet:
Otherwise Farnell appear to have the STW20NK50Z.
- Franc Zabkar
-- Please remove one 'i' from my address when replying by email.
Hello,
Thanks very much for all the replys. I will order some FETS and see how I get on.
There is a service manual for the welder available at
Cheers, Andy
Try
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