Electronics > Beginners

What component is this?

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Alfgan:
Hello everyone!

Recently I disassembled and old ADSL over POTS splitter and fould an component which was commented as 'GAS'
I want to found out what component is this? Maybe someone knows :)

Thanks.
Have a good day ;)

bd139:
It’s a spark gap. Shorts out high voltages across the incoming lines.

T3sl4co1l:
More specifically a GDT (gas discharge tube).  These are available in various ratings, and usually used for lightning protection, which is a good idea for anything attached to long wires like telephone lines. :-+

Tim

Alfgan:
Wow thank you very much! I will read about it more.

Everything that is on PCB or it is electronics interests me :)

malagas_on_fire:
here is a catalogue of some GDT's in various packages for reference, :

http://www.aolittel.com/supplier-284716-metal-oxide-varistor

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