Results for: AO4850
in Thyristors
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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
Part No. Variations
- AO4800
- AO4800B
- AO4800BL
- AO4800MOS
- AO4801
- AO4801A
- AO4801AL
- AO4801AS
- AO4801H
- AO4803
- AO4803A
- AO4803AMOS
- AO4803MOS
- AO4805
- AO4805L
- AO4805MOS
- AO4806
- AO4807
- AO4807L
- AO4810
- AO4812
- AO4812L
- AO4812MOS
- AO4813
- AO4813L
- AO4815
- AO4817
- AO4818
- AO4818B
- AO4818BL
- AO4818MOS
- AO4821
- AO4822
- AO4822A
- AO4822AAO4822
- AO4822AL
- AO4822L
- AO4824
- AO4826
- AO4826B
- AO4828
- AO4828L
- AO4832
- AO4832101
- AO4836
- AO4838
- AO4840
- AO4840E
- AO4840EAO4840L
- AO4840L
- AO4842
- AO4842L
- AO4845
- AO484Z
- AO4850
- AO4852
- AO4854
- AO4854L
- AO4862
- AO4862E
- AO4882
- AO4884
- AO4886
- AO4892