Repairing Switched mode power supply type welder
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 WWW.CEBORA.IT They supply a service manual to Authorized dealers only :-( Andy |
Repairing Switched mode power supply type welder
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Repairing Switched mode power supply type welder
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Repairing Switched mode power supply type welder
Jim Land wrote: wrote in news:1168308527.848268.122730 @s34g2000cwa.googlegroups.com: Where could I start looking for a supplier of this device. I only want a one off. Type W20NB50 made by ST. Digi-Key says: MOSFET N-CH 500V 20A TO-247 made by STMicroelectronics but they don't stock it. The NTE cross-reference at http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm says you can replace it with an NTE2970, but that doesn't seem to be stocked either. These are pretty much generic parts. Not sure what the B means but most 20N50s should do the job I'd reckon. Graham |
Repairing Switched mode power supply type welder
Jim Land wrote: wrote in news:1168308527.848268.122730 @s34g2000cwa.googlegroups.com: Where could I start looking for a supplier of this device. I only want a one off. Type W20NB50 made by ST. Digi-Key says: MOSFET N-CH 500V 20A TO-247 made by STMicroelectronics but they don't stock it. The NTE cross-reference at http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm says you can replace it with an NTE2970, but that doesn't seem to be stocked either. Anyone? Farnell don't have 20n50s but do have 20n60s. http://uk.farnell.com/jsp/search2/br...questid=739140 Don't mix up the IGBTs and mosfets. Also check what IR and STM have. Graham |
Repairing Switched mode power supply type welder
On 8 Jan 2007 18:08:47 -0800, put finger to
keyboard and composed: 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 WWW.CEBORA.IT They supply a service manual to Authorized dealers only :-( Andy Try RS Components, part number 248-4242, ST part number STW20NB50. http://www.rs-export.com Datasheet: http://docs-europe.electrocomponents...6b8002f66d.pdf Otherwise Farnell appear to have the STW20NK50Z. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
Repairing Switched mode power supply type welder
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 WWW.CEBORA.IT but you need a password to access it. Have tried asking for a password to no avail:-(. Cheers, Andy |
Repairing Switched mode power supply type welder
wrote in message oups.com... 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 WWW.CEBORA.IT but you need a password to access it. Have tried asking for a password to no avail:-(. Try www.cebora.it or variations like cebora.it |
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