What is this?

[ljintexas]

This device is directly downstream from the main power switching transistor on a 3D projector. It reads 5 Megohms one way and 11 Megohms the other way. No capacitance..it is stopping current to the lamp.
Can anyone tell me what it is? EPCOS 800 150 are the markings on it.

Thanks

LJ

[ljintexas]

Re: What is this?

Pictures help a bit, no?

[Per Hansson]

Re: What is this?

It's a Surge arrester.
Normally used so that big voltage surges coming in to a device gets shunted to ground.

Scroll to the bottom of my post here to see an example:
https://www.badcaps.net/forum/showpo...38&postcount=6

[budm]

Re: What is this?

Surge Arrester, it should show open circuit. Are you sure you are not reading your hands/body resistance.
It is protection device and it will not stop the circuit from functioning if it is not in the circuit, if it is shorted out then it will cause problem.
https://cdn.badcaps-static.com/pdfs/...57bed9494a.pdf
https://cdn.badcaps-static.com/pdfs/...f4d6af4531.pdf

[ljintexas]

Re: What is this?

Indeed, it does show open circuit. Thanks