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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STMicroelectronics SCRs Fire Lighter Circuit
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TRIAC Logic - Sensitive Gate 600 V 1 A Surface Mount Compak
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Triac; 600V; 16A; 10mA; THT; bulk; TO220-3
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SCRs RAIL SCR
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TRIAC Logic - Sensitive Gate 800 V 1 A Through Hole TO-92
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Thyristor Surge Protection Devices - TSPD 30A 320V
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Diodes Incorporated 2140
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88V 65V 5uA SMB Thyristor Surge Suppressors (TSS) ROHS
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PROSEMI 1973
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BT134-600E


15mA 10mA 600V Two-way thyristor TO-126 TRIACs ROHS
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SCRs 400V 0.8A 8.0V Through-Hole SCR
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Central Semiconductor 17
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