Thyristors

What is a Thyristor?A Thyristor is a four layer semiconductor device, also known as a silicon controlled rectifier (SCR) It is like a fast static switch and is good for controlling large amounts of power, they can also control the speed of DC motors.A Thyristor usually consists of three electrodes: an anode (positive terminal), Cathode (negative terminal) and a gate. (You can also get thyristors with two or four leads). The gate is the main control terminal while the main current flows between the anode and cathode The Thyristor is made of N type and P type materials. The N-type material is formed by doping an element with electrons to increase the number of negative charge-carrying electrons. The P-type material is also produced through doping, although the resulting charge-carrying electrons are positively charged. By alternating layers of P and N-type material, a semiconductor thyristor device is formed. Thyristors are used to create a latching circuit. Thyristors can be turned on using the gate. It then turns off when the voltage across the anode-cathode drops back down to zero. Types of Thyristor: Silicon controlled rectifier (SCR) -The basic purpose of a SCR is to function as a switch that can turn on or off small or large amounts of power.Silicon controlled switch (SCS) - Silicon Controlled Switch (SCS) is a device similar to a SCR, but it is designed to turn off when a positive voltage/input current pulse is applied to an additional "Anode gate" Triac – Triac gets its name from Triode for alternating current Triacs are similar to SCRs but it conducts in both directions, (a bidirectional device). This means that it can switch AC and DC currents. Four layer diode - A four layer diode has 2 pins and is similar to a voltage-sensitive switch. When the voltage between the two pins exceeds the breakdown voltage it turns ON, otherwise its OFF. Diac- Diac is a mix of the words diode and ac switch it is similar to four-layer diode but it can conduct in both directions meaning it can contact both AC and DC currents.Thyristors are used in applications such as motor speed controls, pressure control systems, light dimmers and liquid level regulators What are Phase controlled Thyristors?Thyristors are frequently used as phase-controlled current valves for AC to DC conversion and vice versa, operating at low frequencies In the conducting state, thyristors feature very low losses, making them ideal devices to efficiently control very high currents and energies.

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Beskrivning Pris Rated Average On-State Current Thyristor Type Package Type Repetitive Peak Reverse Voltage Surge Current Rating Mounting Type Maximum Gate Trigger Current Maximum Gate Trigger Voltage Maximum Holding Current Pin Count Length Width Height Dimensions
RS-artikelnummer 486-5485
Tillv. art.nrP0111MN 5AA4
VarumärkeSTMicroelectronics
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0.5A SCR SOT-223 600V 8A Surface Mount 0.025mA 0.8V 5mA 3+Tab 6.5mm 3.5mm 1.8mm 6.5 x 3.5 x 1.8mm
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Tillv. art.nrVS-10TTS08S-M3
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6.5A SCR D2PAK (TO-263) 800V 140A Surface Mount 15mA 1V 30mA 3 10.67mm 9.65mm 4.83mm 10.67 x 9.65 x 4.83mm
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7.5A SCR DPAK (TO-252) 650V 132A Surface Mount 15mA 1.5V 20mA 3 6.73mm 6.22mm 2.38mm 6.73 x 6.22 x 2.38mm
RS-artikelnummer 171-9588
Tillv. art.nrS6020LTP
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20 SCR TO-220AB - 300A Through Hole 30mA 1.5V 40mA 3 10.67mm 4.78mm 15.75mm 10.67 x 4.78 x 15.75mm
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Tillv. art.nrVS-VSKT91/16
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95A SCR TO-240AA 1600V 2094A Panel Mount 270mA 4V 250mA 7 92mm 22.6mm 30mm 92 x 22.6 x 30mm
RS-artikelnummer 839-1313
Tillv. art.nrTZ425N16KOFHPSA1
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425A PCT BG-PB501-1 1600V 14500A Panel Mount 250mA 1.5V 300mA 5 101mm 50mm 52mm 101 x 50 x 52mm
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1.8A SCR TO-220AB 400V 22A Through Hole 1.5mA 3V 175mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
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31A SCR TO-247AD 1200V 320A Through Hole 80mA 1.2V 100mA 3 16.26mm 5.3mm 21.46mm 16.26 x 5.3 x 21.46mm
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Tillv. art.nrTZ600N12KOFHPSA1
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600A PCT BG-PB501-1 1200V 17000A Panel Mount 250mA 2.2V 300mA 5 101mm 50mm 52mm 101 x 50 x 52mm
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Tillv. art.nrS6065KTP
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65A SCR TO-218AC 600V 950A Through Hole 50mA 2V 80mA 3 16mm 4.78mm 21.21mm 16 x 4.78 x 21.21mm
RS-artikelnummer 170-2393
Tillv. art.nrFS0809MH TU
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8A SCR TO-220AB 600V 70 A @ 50 Hz, 73 A @ 60 Hz Through Hole 15mA 1.3V 40mA 3 10.36mm 4.67mm 15.35mm 10.36 x 4.67 x 15.35mm
RS-artikelnummer 165-2662
Tillv. art.nrVS-25RIA120S90
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25A SCR TO-48 1200V 440A Thread Mount 60mA 2V 130mA 2 16.51mm - 41.8mm -
RS-artikelnummer 135-8213
Tillv. art.nrCLA40P1200FC
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40A SCR I4-Pac 1200V 700A Through Hole 80mA 1.6V 100mA 5 20.29mm 5.21mm 21.34mm 20.29 x 5.21 x 21.34mm
RS-artikelnummer 163-7336
Tillv. art.nrTN4015H-6G-TR
VarumärkeSTMicroelectronics
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25A SCR D2PAK 600V 394A Surface Mount 15mA 1.3V 60mA 2 + Tab 10.28mm 9.35mm 4.6mm 10.28 x 9.35 x 4.6mm
RS-artikelnummer 839-1389
Tillv. art.nrT720N16TOFXPSA1
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720A PCT BG-T5726K-1 1600V 14500A Stud 250mA 1.5V 300mA 5 - - 26.5mm 58 (Dia.) x 26.5mm
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Tillv. art.nrVS-25RIA120
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25A SCR TO-48 1200V 440A Thread Mount 60mA 2V 130mA 2 16.51mm - 41.8mm -
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Tillv. art.nrVS-181RKI100PBF
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180A PCT TO-93 1000V 4000A Thread Mount 150mA 2.5V 600mA 3 35mm 30.33mm 49.5mm 35 x 30.33 x 49.5mm
RS-artikelnummer 509-443
Tillv. art.nrBT151S-650R
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7.5A SCR DPAK (TO-252) 650V 132A Surface Mount 15mA 1.5V 20mA 3 6.73mm 6.22mm 2.38mm 6.73 x 6.22 x 2.38mm
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Tillv. art.nrVS-16TTS08S-M3
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10A SCR D2PAK (TO-263) 800V 200A Surface Mount 60mA 2V 100mA 3 10.67mm 9.65mm 4.83mm 10.67 x 9.65 x 4.83mm
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12A SCR TO-220AB 800V 140 A @ 50 Hz, 145 A @ 60 Hz Through Hole 15mA 1.3V 30mA 3 10.36mm 4.67mm 15.35mm 10.36 x 4.67 x 15.35mm
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