Ebay relays


Senior Member
My favorite DPDT relay is this tiny DPDT DIP type: http://www.ebay.co.uk/itm/NAIS-TF2-5V-ATF209-ELECTROMECHANICAL-RELAY-NNB-/390881565723 That particularone is overpriced, I find them in lots of ten occasionally for much less.

It's a NAIS (or Aromat) TF2-5V. Polarized 312 ohm coil, coil current is only about 16 mA at 5V. Needs no driver transistor nor flyback diode. Can be driven directly by a Picaxe pin in an active low setup, watching coil polarity. Has internal flyback diode. Great for a tiny, minimum parts circuit. Can fit in an IC socket, breadboard, or solder it up.


Senior Member
Thanks erco. Problem is with USA source, we always have crazy shipping prices. I'm happy with the ones I just got and ones on order for now. I agree DIP is a nice package, and not having a transistor/diode, and with low current consumption are good features, but for my general use what I have are good enough. Thanks for the updates.


New Member
I am interested to see how reliable these turn out to be. A friend of mine who bought several thousand of a similar type found that a good percentage jammed in either state