Part Identification

[Steve Wayne]

Help in identifying this part would be greatly appreciated. I found this part in a box of diodes I inherited.  Its internal contacts are separated by about 300-400 µm.  I assume it’s somehow I, V, or R controlled.  If so, how do you test for its properties?   Thanks.

[wraper]

It's a reed switch.

[Steve Wayne]

Thanks wraper.   How do you test for its properties?

[tautech]

Thanks wraper.   How do you test for its properties?

Magnet

[wraper]

Thanks wraper.   How do you test for its properties?

google what it is

[JoeN]

It's meant to be a magnetically operated switch.  I guess the properties you can test would be leakage when open (should be so small it makes it almost impossible to test) and resistance when closed with a magnet plus tempco on that resistance.  In general, I can't see tempco ever being much of a problem.  Reed switches are rated for current but you will have to guess what will be safe from the closed resistance since it isn't marked. 

Found this:

https://www.digikey.com/Web%20Export/Supplier%20Content/Meder_374/PDF/MEDER_Parameters_of_Reed_Switch.pdf

[ebclr]

[Steve Wayne]

Thank you JoeN, ebclr & everyone.  Excellent information.