[WeaSiL]

I recently found that an amplifier I have stopped working (audio amp) and since there is no warranty left I pulled it apart to have a look. There are a few items that are blown and since transistors and resistors are cheap I figured I would replace them and see if it works again. Can't hurt right.

Long story short, I can't seem to identify who makes this component or exactly what it is and what I need to replace it. If anyone can help it would be greatly appreciated.

Thanks,
Scott


//edit// It should have 3 legs, not one, the other 2 broke off when the amp blew //edit//

[SCRAPWOTSCRAP]

Check page 4, I think.

http://www.fujisemiconductor.com/old...vplanation.pdf

Hope it helps.

[Al_The_Man]

It looks like a back to back half bridge diode pair.
2SC2505 comes up as a transistor, you may have to google combinations of the part no.
There is a also a similar device that Teccor call a 'Sidactor' this is a bi directional surge suppressor.
Al.

[SCRAPWOTSCRAP]

Reasonably sure it's the T-stack diode, c-type, shown in the PDF shown from earlier post, I thought it was transistor at first, but found that pdf, and diagram on bottom of pdf page 4 matched diagram on device jpg.

[WeaSiL]

Thanks for the info. All I have to do now is try and find a digi-key part number so I can add one to my order.


Thanks again,
Scott

[Al_The_Man]

Is the heatsink the diode centre connection?
If so DigiKey UHB20FCT-E3/4WGI.
If the tab is isolated, then it won't matter.
Al.

[WeaSiL]

Yes the heatsink is the centre connection. The part you referenced looks like it will do just nicely. I am ordering a bunch of parts for the psu of my cnc mill project and will be ordering the parts I need to repair the amp at the same time.

Thanks for all the help.