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 600V 12A
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Triacs Sensitive Gate
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Littelfuse 515
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B1100CCLRP


Thyristor Surge Protection Devices - TSPD 100mA 500A Single Negative
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Littelfuse 514
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STMicroelectronics Triacs Snubless logic level standard 12 A TRIACs
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STMicroelectronics 510
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BT137S-600E(UMW)


TO-252 Thyristors (SCR)/Modules ROHS
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Youtai 509
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D4020LTP


Single 12.7A 400V 1.6V@40A TO-220 Diodes - General Purpose ROHS
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Littelfuse 506
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SCRs 0.8 Amp 600 Volt
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STMicroelectronics 504
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BTA204X-600D,127


Triac; 600V; 4A; TO220FP; Igt: 5mA; Ifsm: 25A; 3Q,Hi-Com
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