I bought some of these micro relays to use in a board I designed:
TE Axicom IME06TS. 12VDC, DPST-NO.
Datasheet:
http://www.farnell.com/datasheets/1717939.pdfI cannot for the life of me get these damn little bastards to work properly!
The thing is, they
seem to be working. I can supply the coil pins with 12V, and they will happily sit there drawing 8-9mA. That appears to be within spec; actually measuring the resistance of the coils gives me about 1K, which matches the datasheet. But they don't switch the contacts!
Rarely and randomly - and this only ever happens out of circuit on the bench, and I don't know what combination of circumstance causes this - they
will work, and I can hear the 'click' and there will be good continuity between the switching pins. It can be working one minute though, and not the next. And I have not been able to get them to switch at all, ever, when soldered-in on my board.
Is there anything I'm missing here? What else I can check before I declare these parts as faulty and try and get them replaced? Or is there perhaps some way I may have inadvertently killed these relays?