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 400V .8A 5 UA Sen SCR
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Littelfuse 3516
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TRIAC Alternistor - Snubberless 800 V 8 A Surface Mount TO-252, (D-Pak)
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Littelfuse 3492
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35mA 800V Two-way thyristor TO-220 TRIACs ROHS
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Weida Semiconductor 3482
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Littelfuse Sidacs 150V DO-214AC 2L
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Littelfuse 3473
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SOT-186A TRIACs ROHS
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WeEn Semiconductor 3468
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P0640SB


SMB Thyristor Surge Suppressors (TSS) ROHS
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TECH PUBLIC 3466
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TO-252-4R TRIACs ROHS
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Weida Semiconductor 3459
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Triacs SMD Triac
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Central Semiconductor 3448
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Triacs THY SPECIAL TRIAC
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ON Semiconductor 3435
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Triacs 4Q Triac
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