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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 > Rectifiers
型号 | DS | 厂牌 | 批号 | 数量 | 地区 | 采购 |
---|---|---|---|---|---|---|
RB521S-30TE61 | Rohm | - | 10580 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | 201450+ | 6019 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | 2018+ | 3230 | 香港 | 要求报价 | |
RB521S-30TE61 | Rohm | 2003+ | 2200 | 瑞典 | 要求报价 | |
RB521S-30TE61 | Rohm | 2018+ | 18000 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | 2020+ | 216000 | 香港 | 要求报价 | |
RB521S-30-TE61 | Rohm | 2000+ | 15324 | 台湾 | 要求报价 | |
RB521S-30TE61 | Rohm | - | 4993 | 美国 | 要求报价 | |
RB521S30TE61 | Rohm | - | 2900 | 法国 | 要求报价 | |
RB521S30TE61 | Rohm | - | 3000 | 法国 | 要求报价 | |
RB521S-30TE61 | Rohm | - | 1500 | 中国 | 要求报价 | |
RB521S30TE61 | Rohm | 2001+ | 6000 | 英国 | 要求报价 | |
RB521S-30TE61 | Rohm | 2013+ | 75900 | 日本 | 要求报价 | |
RB521S-30TE61 | Rohm | 2020+ | 78000 | 日本 | 要求报价 | |
RB521S-30TE61 | Rohm | 2021+ | 7000 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | 2005+ | 700 | 韩国 | 要求报价 | |
RB521S-30TE61 | Rohm | - | 27000 | 台湾 | 要求报价 | |
RB521S-30TE61 | Rohm | 2013+ | 968 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | 2018+ | 40000 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | - | 5150 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | - | 1250 | 台湾 | 要求报价 | |
RB521S-30TE61 | Rohm | - | 6000 | 美国 | 要求报价 | |
RB521S-30TE61 | Rohm | 2024+ | 3025 | 中国 | 要求报价 | |
RB521S-30TE61 | Rohm | 201204 | 9000 | 英国 | 要求报价 | |
RB521S-30TE61 | Rohm | 200948 | 39 | 美国 | 要求报价 |
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