SMPS blast

bertus

Joined Apr 5, 2008
22,305
Hello,

As for the fuse value, as far as I know the 15 A does not exist.
The values use for fuses are 1, 1.25, 1.6, 2, 2.5, 3.15, 4, 6.3 and 8, with factors of 10 as multipliers.
The smallest I have used is 63 mA and the largest 10 A for electronic circuits.

Bertus
 

Alec_t

Joined Sep 17, 2013
14,409
In the first pic, what I take to be a bridge rectifier (the black rectangular thing with a chamfered corner) just south of the main cap, looks to have a lump blown out of it :(.
 

ian field

Joined Oct 27, 2012
6,536
How dare you question the decision of an engineer!
When I repaired microwave ovens (amongst other things) for a back street bodger, we had a "million amp fuse" - basically a bit of brass rod the same size as a 20x5 fuse, it was even turned so it had like end caps.

Basically - when all else failed, we'd put that in and see where the smoke came from.
 

ISB123

Joined May 21, 2014
1,236
Not worth fixing since you already blown it. A new one costs 15$ on eBay.:) There is a reason fuses,NTC thermistors and resistors exist.
 
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Thread Starter

RRITESH KAKKAR

Joined Jun 29, 2010
2,829
Hello,

As for the fuse value, as far as I know the 15 A does not exist.
The values use for fuses are 1, 1.25, 1.6, 2, 2.5, 3.15, 4, 6.3 and 8, with factors of 10 as multipliers.
The smallest I have used is 63 mA and the largest 10 A for electronic circuits.

Bertus
with factors of 10 as multipliers.
How?
 

bertus

Joined Apr 5, 2008
22,305
Hello,

The 1 will come in 0.01 , 0.1 , 1 and 10 A.
The 1.25 will come in 0.0125 , 0.125 , 1.25 and 12.5 A.
etc.

Bertus
 
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