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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
MBRS140T3G		ONSemi	201138	1930	以色列	要求报价
MBRS140T3G		ONSemi	200620	728	美国	要求报价
MBRS140T3G		ONSemi	200828	1102	美国	要求报价
MBRS140T3G		ONSemi	201225	700	加拿大	要求报价
MBRS140T3G		ONSemi	2007+	896	美国	要求报价
MBRS140T3G		ONSemi	2012+	122	美国	要求报价
MBRS140T3G		ONSemi	201313	10	美国	要求报价
MBRS140T3G		ONSemi	-	137	美国	要求报价
MBRS140T3G		ONSemi	2010+	3000	瑞典	要求报价
MBRS140T3G		ONSemi	2014+	2257	瑞典	要求报价
MBRS140T3G		ONSemi	2007+	1550	瑞典	要求报价
MBRS140T3G		ONSemi	201206	1296	以色列	要求报价
MBRS140T3G		ONSemi	201331	300	英国	要求报价
MBRS140T3G		ONSemi	-	2347	英国	要求报价
MBRS140T3G		ONSemi	2021+	93	中国	要求报价
MBRS140T3G		ONSemi	202418	1000	印度	要求报价
MBRS140T3G		ONSemi	202426	2500	印度	要求报价
MBRS140T3G		ONSemi	2023+	3318	中国	要求报价
MBRS140T3G		ONSemi	2006+	9476	德国	要求报价
MBRS140T3G		ONSemi	2010+	588	德国	要求报价
MBRS140T3G		ONSemi	-	3888	印度	要求报价
MBRS140T3G		ONSemi	2006+	642	美国	要求报价
MBRS140T3G		ONSemi	2024+	25000	中国	要求报价
MBRS140T3G		ONSemi	-	78	美国	要求报价
MBRS140T3G		ONSemi	201129	550	美国	要求报价

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