I'm organizing a lot of components and don't know what this is. Hooked up to PS at low voltage and nothing happened. I can't tell the anode from the cathode. What is it?
Electrical – What component is this
componentsidentificationneon
Related Solutions
It looks like a tantalum capacitor to me. It's the wrong shape for a diode, and they usually have the cathode marked with a line.Tantalums usually have the positive terminal identified with a line or a '+' like that, and are encapsulated in plastic. Electrolytics usually have the negative terminal identified with a line, and aren't usually encapsulated.
Looks like a "0 ohm resistor" (a jumper in some standard size such as 0603).
From Yageo's catalog:
Best Answer
Looks like a neon light. They need a fairly high voltage to light up.
Like, 90Volts or more. You can use them on 110VAC with just a small series resistor.
This is an example:
This guy gives a lot of info about the ne2.
A quick look at a datasheet for the NE2 says it needs 95VAC or 135 VDC to light up.
So, you can run it on DC, but you'd need an unusual power supply to do it.