What is this component ?.

Hai,

I need to know what is this components. It is look like copper metal plate. And printed on L30. I tested using multi meter. connectivity I got beep sound.

What is the use of this component ?. I think it is Inductor ?. Is this Inductor ?.

It is used in AC line. And It connected with BTA12 Triac in second pin with series connection from AC
It’s one end is connected with AC line And another end is connected with BTA12 TRIAC’s 2pin.

I tried internet and going to local stores and ask many times. they don’t know the Idea of the component.

I have attached the photo of the component please find that.

Moderator edit: img tag restored.

It might be a SMD ferrite feedthrough.

.

Ok.

After reading your reply then I tried using this keyword "SMD ferrite feedthrough" on google images. but I got different images. that all are not like mine what I have.

Mine is look like solid copper plate plate. but punched on "L 3 0".

LarryD: It might be a SMD ferrite feedthrough.

No, there is no ferrite on it.

It's a shunt resistor. http://powerelectronics.com/passive-components/smd-shunt-resistor-now-provides-02-m

// Per.

Ok. thank you very much to all. and zparo.

Yes this is shunt resistor. thank you very much.

What is the use of this component ?.

SureshKumar2610: What is the use of this component ?.

As the name says, to shunt current.

Generally, so it can be measured.

SureshKumar2610: What is the use of this component ?.

It's essentially just a very low valued, high current, resistor.

Hi, Where did the board come from, what is its application?

Tom... :)