[Solved] Unknown component/device

[mnt22]

Hi
What is that component it goes by "EM"  on the PCB
Thanks every one.

[mnt22]

?

[LateLesley]

I have no idea - but on the offchance it puts you on the right track, it looks similar to a ceramic resonator. I just came across a ceramic resonator in an circuit, and was looking for what it was. I hadn't come across them. And it does look a little similar to your component.

Good luck in identifying it.

https://en.wikipedia.org/wiki/Ceramic_resonator

It may also be a ceramic filter, I just stumbled across them.
https://www.google.co.uk/search?q=electronics+ceramic+filter&num=50&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjs9a_7oL_bAhUJzFMKHbwfDWkQ_AUICygC&biw=1528&bih=850

[picburner]

I think it is a three terminal EMI suppression filter like these: http://www.globalsources.com/gsol/I/EMI-filter/p/sm/1001918177.htm#1001918177

[Chris56000]

Hi!

That is indeed what it is - it's a capacitor with an input lead, an output plate and a common, forming a 'T' filter with two ferrite bead supressors, represented like this:-

Chris Williams

[ArthurDent]

Yup, EMC filter is correct. Here is a photo of a nearly identical one.