TC BG250 repair

[sshorepunk]

Hi

a while back I bought a cheap TC BG250 combo, buttons and a foot missing, but perfect for my needs

Now it’s stopped working

A quick search came up with a component in the power supply that is known to fail

Checked it tonight and it is the same problem 

 

I’m not clued up on this sort of stuff so no idea what it is apart from what the article I read tells me, it’s an NTC type 10D-11 and can replaced with a 10D-15 

 

I can replace it no problem, but need to get one, anybody able to help me and also advise if it is the correct route to go?

I’ve attached a screen shot of what I read on TB and also the same part in my amp

i moved it too one side so I could see the damage and the pin came out of the body! Proper knackered!!

 

 

 

Thanks

Tony

[tauzero]

It's a negative temperature coefficient thermistor - there's a data sheet at https://pdf1.alldatasheet.com/datasheet-pdf/view/1132203/VATRONICS/NTC10D-15.html that tells you about the numbering system. The 10D-11 handles 3A, the 10D-15 5A, and in the middle the 10D-13 copes with 4A. I'm not sure what the implications of the lower resistance of the higher power handling versions is.

 

CPC Farnell do thermistors - https://cpc.farnell.com/webapp/wcs/stores/servlet/Search?st=thermistor&catalogId=15002&showResults=true&pageSize=25&storeId=10180&langId=[Ljava.lang.String%3B%403c322563&categoryId=700000067503 

You'd want an NTC thermistor, 10R, that will handle at least 3A and preferably more, for example https://cpc.farnell.com/epcos/b57237s100m/thermistor-ntc-10r-3-7a/dp/RE04727?st=thermistor

or https://cpc.farnell.com/epcos/b57238s100m/thermistor-ntc-10r-5a/dp/RE04735?st=thermistor

[sshorepunk]

Thanks for that!

I worked out it was a thermistor but only ones I could find were on eBay

Forgot about Farnell’s, just ordered a couple

 

Thanks

Tony