How to choose a relay ?

What do you need to know about it? Might hep if you told us exactly what youre doing with it.

NT

Well, you certainly aren't telling us much!!

Do you know how much current the relay has to carry? Do you know how much current it has to switch (usually these are the same -- sometimes they aren't). Do you know the voltage the relay has to withstand? Are all these quantities alternating current or direct?

Do you know what voltage you have available to power the coil? For that matter, are you thinking solid state relay when you think relay?

Answer all of the above, and see if it helps.

re

And whether the load's inductive or capacitive, af or rf, and whether you're running the coil off battery and need to minimise power.

NT

re

The relay is for a power electronics board that I am working on, and obtained from :

That article has schematics -- why don't you type the part number of the relay from the schematic into DigiKey, and see what pops up? Failing that, try Google.

HTH

Reinhard

and

=A0Are

hat

tertie-inverter

You need to know the V being applied to the coil, and the V and i_max for teh contacts. On the latter you can simply go overkill, but teh former you need to know.

NT