"scada" wrote in message
et...

"tiger x" wrote in message
om...
Need help in ID'ing a component. Physically it looks like a SCR or
VR. It's leads are labeled G, MT2, MT1. Best guess at a mfg # is
BT134-500E.
Can anyone help?

Tiger

That would be a "Triac". A triac is essentially an SCR in anti-parallel,
with a common gate.

G = gate
MT1 = Main terminal 1
MT2 = Main terminal 2


I meant to say, A triac is essentially two SCR's in anti-parallel,
with a common gate. I could not find that part#, but with many applications
a replacement can be made with one that meets or exceeds the maximum voltage
& current rating that is to be switched!