Diode Question

[troy310589]

I got plans for a circuit, and it says use IN4001 diodes, i got some IN4002 diodes, will these work??

 

[Dr.EM]

Without seeing the plan its hard to tell, but almost certainly yes. The 4002s have 100v rating with the 4001s at 50v, so they are over specified if anything. I think the higher voltage diodes are marginally slower reacting (?), but that probably isn't a problem.

 

[raybo]

These diodes are realy rectifiers not so good for normal switching. The question now is what is your applications for these diodes.

 

[tavib]

will work well 1N4002 is complete compatible with 4001 except the reverse voltage

 

[troy310589]

here is the link to the diagram, it is for model trains if any of you are wondering
http://www.mrollins.com/constant.html

 

[mramos1]

Troy310589

The answer is 99.99% yes they will work. You mention a circuit, had you posted the circuit or a link to it. The .01 would not be in there..

 

[troy310589]

Troy310589

The answer is 99.99% yes they will work. You mention a circuit, had you posted the circuit or a link to it. The .01 would not be in there..

I did post a link... http://www.mrollins.com/constant.html

 

[mramos1]

It is now 100% Should work.. Sorry I missed the link.

 

[troy310589]

what is the difference in a in4002 and a in4004, how can i find info on diodes like this, when i search it always comes up with shops selling em, new question will in4002 diodes work in a design that needs in4004diodes? (sorry, cant find link to site, but is similar design to above...)

 

[JimB]

There is a series of diodes, 1N4001 through to 1N4007.
The difference is the PIV rating. (PIV = Peak Inverse Voltage)
The 1N4001 has a PIV of 50 volts, the 1N4007 has a PIV of 1000v (from memory).

A diode with a higher number in the series can be used instead of one with a lower number.
But NOT the other way around without considering the voltages in the circuit.

What I do when buying these diodes is just get 1N4007 and these can be used in place of any other 1N400x diode. Saves stocking a whole load of different diodes.

JimB