I have a couple of dud Schottky Diode's, 5402's , I think they are rated at 3A , question is, I have some 6A10 Diode's, can I use them instead ? .
ps: they are off a Vestel power board for a wide screen TV .

cheers

Spike

 

Neither is a Schottky diode. They are general purpose silicon rectifiers. Looks to me like a 6A10 can replace a 1N5402 in a power supply.

 

1N5402

UF5402 not 1N5402. Do not use the 1N540x in this application.
Ultra Fast not Schottky.

 

UF5402 not 1N5402. Do not use the 1N540x in this application.
Ultra Fast not Schottky.

Yes it is a UF5402 , did not notice the UF at first , so the 6A10 will not be any good then ! .

 

If you went ahead and used a "normal" rectifier diode, that was rated for the current, how much difference is there really, and does it wear out anything more, like having loose parts hanging off a car ? I dno't know the finer details of diodes, but in a circuit model, what does it boil down to ? Adding more capacitance and I suppose and at what phase tho ?

I've made buck/boost converters in the past, soon it will be time to go over that with my new knowledge. And then do some lab experiments with my new gear.

 

If you went ahead and used a "normal" rectifier diode, that was rated for the current, how much difference is there really, and does it wear out anything more, like having loose parts hanging off a car ? I dno't know the finer details of diodes, but in a circuit model, what does it boil down to ?

It boils down to speed and forward voltage drop.
A Schottky has no recovery delay time, and it has a lower forward voltage drop, both which improve efficiency in high frequency switching regulators.

 

Hi Guys
Replaced all 3 of the UF5402 , and Whalla good to go , another one saved from the landfill .

cheers

Spike