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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
型号 | DS | 厂牌 | 批号 | 数量 | 地区 | 采购 |
---|---|---|---|---|---|---|
FDV304P | Fairchild | 200923+ | 4938 | 中国 | 要求报价 | |
FDV304P | Fairchild | 201321 | 709 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | 201206 | 1518 | 以色列 | 要求报价 | |
FDV304P | Fairchild | 2011+ | 4398 | 瑞典 | 要求报价 | |
FDV304P | Fairchild | 201525 | 540 | 美国 | 要求报价 | |
FDV304P | Fairchild | 2006 | 2732 | 美国 | 要求报价 | |
FDV304P | Fairchild | 2011+ | 63 | 以色列 | 要求报价 | |
FDV304P | Fairchild | 199924 | 5948 | 以色列 | 要求报价 | |
FDV304P | Fairchild | 200750 | 2268 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | 201314 | 725 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | 2000+ | 2665 | 台湾 | 要求报价 | |
FDV304P | Fairchild | - | 1721 | 美国 | 要求报价 | |
FDV304P | Fairchild | 2016+ | 4439 | 韩国 | 要求报价 | |
FDV304P | Fairchild | 199924+ | 45000 | 台湾 | 要求报价 | |
FDV304P | Fairchild | 201720 | 480 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | - | 41 | 美国 | 要求报价 | |
FDV304P | Fairchild | 200849 | 343 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | 201525 | 1407 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | 200344 | 1367 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | 201138 | 355 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | - | 7500 | 中国 | 要求报价 | |
FDV304P | Fairchild | 200012 | 314 | 西班牙 | 要求报价 | |
FDV304P | Fairchild | 2023+ | 54000 | 中国 | 要求报价 | |
FDV304P | Fairchild | 201723+ | 9000 | 中国 | 要求报价 | |
FDV304P | Fairchild | - | 85300 | 新加坡 | 要求报价 |