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> Replacing A Part In A Pcb - Transistor, just need a quick bit of adivce on this
Claytonic
Posted: March 12, 2015 10:03 am
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Hello all,

I have an induction cooktop and it has two separate but identical PCBs inside, one side had stopped working so upon inspection i found a transistor had shorted out to the metal enclosure.

I am an amateur at electronics but i am capable of resoldering the part.

My question is are they all the same? i can not find a part with identical labeling on it. I can find transistors very similar however.

Let me know what to buy, an ebay link would be great.

Thanks!

Below is what is on the transistor
g40n60 ufd 225

user posted image

The below link is a similar one I have found online.

http://www.ebay.com.au/itm/1pc-100-Origina...=item2a371d20d8
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kellys_eye
Posted: March 12, 2015 11:13 am
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The main specifications are in the numbering - the 40 refers to a voltage (400V) and the 60 is the amperage (60A).

The device you link to is the same in specification so PROVIDING THE LEADOUTS are the same (and they usually are) then you're ok to use it as a replacement.

Please note that there may be other faults that caused this device to fail and that you should exercise caution when replacing the part.



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Claytonic
Posted: March 12, 2015 12:32 pm
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Thank you very much for the quick reply and info

I will order the part and post results in time.
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Nothing40
Posted: March 12, 2015 04:37 pm
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Looks like a Fairchild IGBT..be my best guess. Let's see what Google says..

Looks like this might be it,or darn close..
http://www.alldatasheet.com/datasheet-pdf/...GTG40N60A4.html

Do note,that the metal 'tab' on the back is connected through,to the center pin.
I assume there was an insulating pad between the back of the IGBT,and whatever it was mounted to (like a heatsink) And maybe that's what failed? Be sure to replace that as well.
Something like this,perhaps:
http://www.gooddealchina.com/upimage/image...33036555017.JPG

Do be careful. There's likely a reason why the part failed in the first place,so be sure to check for other faults..don't want to blow up the new IGBT,too.



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Sch3mat1c
Posted: March 12, 2015 10:07 pm
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QUOTE (kellys_eye @ March 12, 2015 05:13 am)
The main specifications are in the numbering - the 40 refers to a voltage (400V) and the 60 is the amperage (60A).

The device you link to is the same in specification so PROVIDING THE LEADOUTS are the same (and they usually are) then you're ok to use it as a replacement.

Please note that there may be other faults that caused this device to fail and that you should exercise caution when replacing the part.

Other way around actually, 40A 600V.

I think I've seen it the other way on a few occasions.

It's also an IGBT, but they are largely rated in the same way as MOSFETs.

Infineon for one is using the digits for resistance instead, so you get smaller numbers and more leading zeroes, instead of altogether bigger numbers, in the first "numbers" position (e.g., IPA057N06 instead of -60N60). wacko.gif

FYI rolleyes.gif

Tim


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MacFromOK
Posted: March 12, 2015 10:15 pm
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Lol... Tim: the human electronics encyclopedia. biggrin.gif

If you ever manage to load your memory into a computer, I want a copy. beer.gif


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Sch3mat1c
Posted: March 12, 2015 10:18 pm
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QUOTE (MacFromOK @ March 12, 2015 04:15 pm)
Lol... Tim: the human electronics encyclopedia. biggrin.gif

If you ever manage to load your memory into a computer, I want a copy. beer.gif

Are you sure? It would be something like a broken Wikipedia, with more porn fantasies. laugh.gif

Tim


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MacFromOK
Posted: March 12, 2015 10:22 pm
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Lol, might have to add a filter(s), but yeah... I'd take my chances. biggrin.gif


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