Replacing SMD Fuse on T-con

[capkid]

I found a blown fuse on an LCD TV t-con, and the picture came up fine after I jumped the fuse. Instead of buying a replacement t-con, I was going to replace the fuse, but I'm having a hard time finding an exact spec. match. I contacted Digikey, and they provided a replacement recommendation. However, I'm unsure of the replacement's suitability for this application, since it's amperage is slightly less than the original:

Exact match: http://www.digikey.com/product-detai...21CT-ND/559655

Suggested replacement (3.0A instead of 3.15A): http://www.digikey.com/product-detai...32CT-ND/686752

Would this be a better replacement? http://www.digikey.com/product-detai...5TR-ND/1206513

Edit: Ugh, never mind. I'm going to use MFU12063.15TR-ND, since the voltage doesn't matter much.

[jbfr_54]

Re: Replacing SMD Fuse on T-con

Hi,
Personnaly I use a standard fuse of the same rating that I connect with two little pieces of wire to the PCB and then enclose it in protective insulating tape and put back the T-Con and its metal shield in place. No need to worry for special fuse as long as rating (3.15 amps fast blow in your case I guess) is the same.
Regards.
Jean

[capkid]

Re: Replacing SMD Fuse on T-con

I ended up ordering the 3.15A 63V SMD fuse last night.

[rswails]

Re: Replacing SMD Fuse on T-con

Did your new fuse work? I'm curious how you're post install went. I too have the same fuse blown. I am scared it will just blow again cause of some other failed component in the circuit of the tcon board.

[capkid]

Re: Replacing SMD Fuse on T-con

Did your new fuse work? I'm curious how you're post install went. I too have the same fuse blown. I am scared it will just blow again cause of some other failed component in the circuit of the tcon board.

Yes, it worked out great. I wouldn't try to remove the old fuse. Just install the new fuse on top of the old one.

[Ltank]

Re: Replacing SMD Fuse on T-con

Fuses are designed with voltage and amperage in mind. Example a 250 v 4 amp should allow 1000 watts of power to run through it. A 125v 4 amp fuse should allow 500 Watts of power to run through it. Voltage rating is important as is the amperage.

[budm]

Re: Replacing SMD Fuse on T-con

'The voltage rating relates to the ability of the fuse to
function and extinguish internal arcs when it opens. The
interrupt rating is how large a short-circuit or fault
current the fuse can interrupt or stop safely without
allowing a continuing arc and without damaging the
fuse body or fuse holder."