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 BTA2008-1000D/TO-92/STANDARD M
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WeEn Semiconductor 9194
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Diac; Ifmax:2A; DO35; 35÷45V
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Diotec 9166
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Triacs 400V 1A 25-25-25mA
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Littelfuse 9103
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BTA312-600CT,127


Triacs RAIL-THYR AND TRIACS
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NXP 9093
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BT149G,126


SCRs AMMORA SCR
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NXP 9038
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SCRs 4A 50uA 400V Sensing
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Littelfuse 8954
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TISP4265M3BJR-S


Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 200volts
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Bourns 8915
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Kang Yang 8875
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Thyristor Surge Protection Devices - TSPD PROTECTOR - SINGLE BIDIRECTIONAL
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Bourns 8809
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AUD 0.7273
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BTA12-600TWRG


Triacs 12 Amp 600 Volt
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STMicroelectronics 8805
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