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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Littelfuse SCRs Sen SCR 400V .8A 200uA
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TRIAC Logic - Sensitive Gate 200 V 4 A Through Hole TO-225AA
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SCRs 800V 12A
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Triacs SENSITIVE GATE
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STMicroelectronics Triacs 4A TRIACS
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BT138-600.127


Triac; 600V; 12A; 35/70mA; THT; sensitive gate; 4Q; tube; TO220AB
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Triac; 600V; 12A; 50/70mA; THT; bulk; TO220-3
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15mA 10mA 600V Two-way thyristor SOT-89 TRIACs ROHS
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5mA 5mA 800V Two-way thyristor SOT-223-2 TRIACs ROHS
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