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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
- IRF3000TRPBF
- IRF3005
- IRF3007
- IRF3007PBF
- IRF3007S
- IRF3007SPBF
- IRF3037
- IRF305
- IRF3205P
- IRF3205PBF
- IRF3205PDF
- IRF3205S
- IRF3205SMOS
- IRF3205STR
- IRF3205STRRPBF
- IRF3205ZL
- IRF3205ZLPBF
- IRF3205ZS
- IRF322
- IRF323
- IRF3305
- IRF330R
- IRF3315MOS
- IRF3315S
- IRF3315SPBF
- IRF333
- IRF33S
- IRF341
- IRF3415
- IRF3415STR
- IRF3415STRLPBF
- IRF3415STRPBF
- IRF341R
- IRF342
- IRF347UH10
- IRF350
- IRF350CECC
- IRF350DICE
- IRF351
- IRF3515SPBF
- IRF3515STR
- IRF3515STRL
- IRF352
- IRF352R
- IRF356K
- IRF3575DTRPBF
- IRF36810
- IRF36ER102K
- IRF3703
- IRF3703L
- IRF3703PBF
- IRF3704PBF
- IRF3704STRLPBF
- IRF3704Z
- IRF3704ZL
- IRF3704ZPBF
- IRF3704ZSPBF
- IRF3705
- IRF3706L
- IRF3706S
- IRF3707L
- IRF3707LPBF
- IRF3707S
- IRF3707STRRPBF
- IRF3707ZCLPBF
- IRF3707ZL
- IRF3708
- IRF3708L
- IRF3708SMOS
- IRF3708STR
- IRF3709PBF
- IRF3709S
- IRF3709SMOS
- IRF3709ZCL
- IRF3709ZCS
- IRF3709ZLPBF
- IRF3710L
- IRF3710LPBFIC
- IRF3710MOS
- IRF3710PBF
- IRF3710S97
- IRF3710STR
- IRF3710STRL
- IRF3710STRLPBF
- IRF3710ZS
- IRF3711PBF
- IRF3711S
- IRF3711SPBF
- IRF3711STR
- IRF3711STRL
- IRF3711STRR
- IRF3711ZCS
- IRF3711ZL
- IRF3711ZPBF
- IRF3711ZSMOS
- IRF3717TRPBF
- IRF3805L7PPBF
- IRF3808SPBF
- IRF3808STRLPBF
- IRF3808STRRPBF