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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Thyristor Surge Protection Devices - TSPD 220K OHM 1% 1/2W
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TRIAC Alternistor - Snubberless 600 V 40 A Through Hole TO-218 Isolated Tab
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Weida Semiconductor 126
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35mA 50mA 800V 1 TO-220 TRIACs ROHS
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YFW Electronics 126
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Littelfuse Triacs 600V 16A 20-20-20mA
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Module; thyristor/thyristor; 1.8kV; 156A; A21; SEMIPACK2; screw
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