Triac is Three Layered Device . Emitter ,Collector and Gate
it works as a TRIAC
Triac.
Large a.c. currents with a small trigger signal.
Essentially an Scr is a solid state switch that will only allow current to flow in one direction. A triac is essentially two scr's in Anti- parallel that allows current to pass in both directions.
A triac is a high voltage AC solid state relay it is switched on by applying a dc at the gate it can't be used to switch DC because it stay on while current is flowing even when the gate is low but with AC the current stop flowing when the cycle go zero and will switch of if the gate is low
Triac-Lautrait's population is 454.
If it is a physical switch, this is called a "relay" or a "contactor". If it is a semiconductor device, it is typically a triac, SCR or a thyristor.
The diac and the triac are used to control the AC lines. The difference is that triac are bigger than diac.
The area of Triac-Lautrait is 6,400,000.0 square meters.
A triac is a semiconductor-based solid state electronic switch. The main applications are those which require the electronic switching of AC circuits. The switching can go from 100% on to 100% off (or vice versa) or can allow only portions of each AC cycle to pass through, which varies the amount of power supplied to the load. That is how triac-based AC lamp dimmers work.
TRIAC is the word derrived from the 2 words TRIode and AC.