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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Triacs ALT 600V 25A 50-50-50MA
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TRIAC Alternistor - Snubberless 600 V 6 A Through Hole TO-220AB Insulated
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Triacs 600V 25A Triac 50-50-50 mA TO220
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TM8050H-8D3-TR


SCRs 80 A High Temperature Thyristor (SCR)
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STMicroelectronics 346
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BT139-800E


TO-220 TRIACs ROHS
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MAC15-10G


Triacs THY 15A 800V TRIAC
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TYN1225RG


Thyristor; 1.2kV; 16A; 25A; 40mA; Package: tube; THT; TO220AB
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IXYS SCRs 19 Amps 1200V
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BT137S-800F.118


Triac; 800V; 8A; 25/70mA; SMD; sensitive gate; 4Q; Reel, tape; DPAK
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