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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S4008LS3TP


SCRs 400V 8A Sensing
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Littelfuse 1131
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AUD 1.5871
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BT138X-600.127


Triac; 600V; 12A; 35/70mA; THT; sensitive gate; 4Q; tube; TO220FP
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WeEn Semiconductor 1127
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AUD 0.776
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97A8


Two-way thyristor TO-92-2.54mm TRIACs ROHS
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JieJie 1125
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AUD 0.0818
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BT137-800E.127


Triac; 800V; 8A; 10/25mA; THT; sensitive gate; 4Q; tube; TO220AB
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WeEn Semiconductor 1118
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AUD 0.616
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BT151U-500C,127


BT151U-500C/SIL3/STANDARD MARK
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WeEn Semiconductor 1117
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AUD 0.5429
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K1800G


Sidacs 160V SIDAC DO15
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Littelfuse 1105
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AUD 1.0154
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BTA24-800B


80mA 800V 1 TO-220 TRIACs ROHS
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Kang Yang 1099
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AUD 0.4638
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SPD9231A-2/TR


SMA Thyristor Surge Suppressors (TSS) ROHS
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Will Semiconductor 1076
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AUD 0.1198
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BT139B-600E-JSM


TO-263 TRIACs ROHS
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JSMSEMI 979
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AUD 0.4513
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BT139X-800,127


Triacs RAIL TRIAC
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NXP 287
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AUD 0.7511
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