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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SCRs High Temperature 40A SCRs
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Triac 6A 400V Isolated TO-220AB
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C3 Semiconductors 388
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Triac 25A 600V Isolated TO-220AB
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C3 Semiconductors 388
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BT136-600D


Triac; 600V; 4A; 5/10mA; THT; bulk; TO220-3
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CDIL 387
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S4025RTP


Littelfuse SCRs 400V 25A
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Sidacs SIDAC 300V
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Littelfuse 386
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BTA08-600BWRG


Triac; 600V; 8A; 50mA; THT; Snubberless™; tube; TO220ABIns
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SCRs 1000V 25A
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Littelfuse 383
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BT138-800.127


Triac; 800V; 12A; 70mA; TO220AB
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NXP 382
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Q8025K6TP


Triacs Altnstr 800V 25A Iso 80-80-80 mA
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Littelfuse 382
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