Page 1 of 1

Transistor for front fan speed controller

Posted: Mon Sep 09, 2013 4:14 pm
by rossmackay1974
Ok, I've got the old problem with the front fan transistor blowing and its running on speed 4 and nothing else. It's got digital climate control so I opened it up to have a look at the transistor ans sure enough it's blown. Looks like the solder has come off one of the link wires too.
The help sheet mantions that the transistor is available for about £9. Any idea where? I've searched online and I can't find it anywhere. According to the numbers on it, it's a TOSHIBA SD1526 1513. I think.

Anyone got any idea where I can get one? The £68 for a new unit seems steep given that it's just a transistor and a connector with a big heat sink.

Cheers.

Re: Transistor for front fan speed controller

Posted: Mon Sep 09, 2013 4:34 pm
by wonkanoby

Re: Transistor for front fan speed controller

Posted: Mon Sep 09, 2013 4:47 pm
by rossmackay1974
Brilliant. Thanks for that. Hopefully that'll do the job. Fan works fine otherwise.

Re: Transistor for front fan speed controller

Posted: Mon Sep 09, 2013 10:08 pm
by wonkanoby
be sure to use a blob of thermal paste

Re: Transistor for front fan speed controller

Posted: Thu Sep 12, 2013 12:00 pm
by rossmackay1974
Well that's the fan sorted. New transistor fitted, big blob of arctic silver CPU paste too and it works a treat. Such a simple fix. Thanks for the supplier info.

Ross.

Re: Transistor for front fan speed controller

Posted: Thu Sep 12, 2013 4:50 pm
by hijimhere
Was going to to say RS Components or Maplins but you appear sorted - what is the spec of the transistor?

http://www.ebay.co.uk/itm/2SD1525-TOSHI ... 2ec6d14425


Just wondering if the same spec but with a bonded heat sink - would that stop it "blowing"?

Re: Transistor for front fan speed controller

Posted: Thu Sep 12, 2013 6:54 pm
by wonkanoby
I think main reason it blows is fan gets crudded up and puts to much load on it

Re: Transistor for front fan speed controller

Posted: Fri Sep 13, 2013 12:08 pm
by hijimhere
For sure draw in excess would cause problems.