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Thyristors
A thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. They act exclusively as bistable switches, conducting when their gate receives a current trigger, and continue to conduct while they are forward biased (that is, while the voltage across the device is not reversed). A three-lead thyristor is designed to control the larger current of its two leads by combining that current with the smaller current or voltage of its other lead - known as its control lead. In contrast, a two-lead thyristor is designed to 'switch on' if the potential difference between its leads is sufficiently large - a value representing its breakdown voltage. Some sources define silicon-controlled rectifiers and thyristors as synonymous. Other sources define thyristors as a larger set of devices with at least four layers of alternating N and P-type material. The first thyristor devices were released commercially in 1956. Because thyristors can control a relatively large amount of power and voltage with a small device, they find wide application in control of electric power, ranging from light dimmers and electric motor speed control to high-voltage direct current power transmission. Thyristors may be used in power-switching circuits, relay-replacement circuits, inverter circuits, oscillator circuits, level-detector circuits, chopper circuits, light-dimming circuits, low-cost timer circuits, logic circuits, speed-control circuits, phase-control circuits, etc. Originally thyristors relied only on current reversal to turn them off, making them difficult to apply for direct current; newer device types can be turned on and off through the control gate signal. A thyristor is not a proportional device like a transistor. In other words, a thyristor can only be fully on or off, while a transistor can lie in between on and off states. This makes a thyristor unsuitable as an analog amplifier, but useful as a switch.
Transistor > Thyristors > FET Transistors > MOSFET
Вариации номера комплектующего
- SI4800518
- SI4800BD
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- SI4802DYT1E3
- SI4804BDYE3
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- SI4816BDY
- SI4816BDYT1E3
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- SI4818DY
- SI4818DYT1
- SI4822DY
- SI4822DYT1
- SI4822DYT1E3
- SI4823
- SI4824A10CUR
- SI4824DYIC
- SI4824DYT1
- SI4825
- SI4825A10CSR
- SI4825DDYT1GE3
- SI4826A10CURIC
- SI4827A10CS
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- SI4830A20GU
- SI4830CDY
- SI4830DY
- SI4830DYT1
- SI4830DYT1E3
- SI4831B30GU
- SI4831DY
- SI4833ADYT1GE3
- SI4833BDY
- SI4833DY
- SI4834BDYTIE3
- SI4834CDY
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- SI4835BDYT1
- SI4835BDYT1E3
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- SI4838BDY
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- SI4840BDYE3
- SI4842BDY
- SI4842DYT1
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- SI4850EYT
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- SI4854DYT1
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- SI4882DY
- SI4884
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- SI4886DYT1
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- SI4888DYE3
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- SI4890BDYT1GE3
- SI4890DY
- SI4890DYTI
- SI4894
- SI4894BDYT1GE3
- SI4894DY
- SI4894DYTIE3
- SI4896DYT1E3