Thyristors

A thyristor is a type of semiconductor device that acts like a switch, allowing energy to flow in one direction only. It is a three-terminal electronic device composed of four layers of alternating P-type and N-type material that can operate in four different states: off, forward blocking, reverse blocking, and forward conducting. In its off state, the thyristor does not conduct current; in its forward blocking state, it allows current to flow in the forward direction only; in its reverse blocking state, it allows current to flow in the reverse direction only; and in its forward conducting state, it allows current to flow in either the forward or reverse direction. Thyristors can be used in many applications such as power control, over-current protection, motor speed control, and lighting dimmers.
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200uA 8A 80A@60Hz TO-220AB TRIACs ROHS
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Littelfuse Triacs 600V 15A 50-50-50mA
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BTA312-600B,127


Triac; 600V; 12A; TO220AB; Igt: 50mA; Ifsm: 100A; 3Q,Hi-Com
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BT137-800E.127


Triac; 800V; 8A; 10/25mA; THT; sensitive gate; 4Q; tube; TO220AB
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