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 it’s 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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Omschrijving Prijs 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-stocknr. 169-5957
FabrikantnummerT90RIA60
FabrikantVishay
€ 29,88
Each (In a Box of 10)
Aantal stuks
90A SCR D 55 600V 1870A Panel Mount 120mA 2.5V 200mA 3 41mm 27mm 25mm 41 x 27 x 25mm
RS-stocknr. 395-9214
FabrikantnummerVS-T90RIA60
FabrikantVishay
€ 34,11
Each
Aantal stuks
90A SCR D 55 600V 1870A Panel Mount 120mA 2.5V 200mA 3 41mm 27mm 25mm 41 x 27 x 25mm
RS-stocknr. 700-5119
FabrikantnummerVS-VSKT91/16
FabrikantVishay
€ 41,54
Each
Aantal stuks
95A SCR TO-240AA 1600V 2094A Panel Mount 270mA 4V 250mA 7 92mm 22.6mm 30mm 92 x 22.6 x 30mm
RS-stocknr. 165-2391
FabrikantnummerVS-50RIA120
FabrikantVishay
€ 15,376
Each (In a Bag of 100)
Aantal stuks
50A SCR TO-65 1200V 1490A Thread Mount 100mA 2.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS-stocknr. 165-2992
FabrikantnummerVSKT91/16
FabrikantVishay
€ 44,351
Each (In a Box of 10)
Aantal stuks
95A SCR TO-240AA 1600V 2094A Panel Mount 270mA 4V 250mA 7 92mm 22.6mm 30mm 92 x 22.6 x 30mm
RS-stocknr. 395-3474
FabrikantnummerVS-50RIA120
FabrikantVishay
€ 20,71
Each
Aantal stuks
50A SCR TO-65 1200V 1490A Thread Mount 100mA 2.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS-stocknr. 145-1769
FabrikantnummerVS-70TPS12PBF
FabrikantVishay
€ 6,434
Each (In a Tube of 25)
Aantal stuks
70A SCR Super-247 1200V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS-stocknr. 700-5591
FabrikantnummerVS-70TPS12PBF
FabrikantVishay
€ 7,47
Each
Aantal stuks
70A SCR Super-247 1200V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS-stocknr. 700-5594
FabrikantnummerVS-70TPS16PBF
FabrikantVishay
€ 7,92
Each
Aantal stuks
70A SCR Super-247 1600V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS-stocknr. 145-1770
FabrikantnummerVS-70TPS16PBF
FabrikantVishay
€ 7,544
Each (In a Tube of 25)
Aantal stuks
70A SCR Super-247 1600V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS-stocknr. 395-9309
FabrikantnummerVS-ST330S12P1PBF
FabrikantVishay
€ 140,16
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Aantal stuks
330A SCR TO-118 1200V 9420A Stud 200mA 3V 600mA 3 49mm 42.5mm 74.5mm 49 x 42.5 x 74.5mm
RS-stocknr. 700-5579
FabrikantnummerVS-16TTS12STRL-M3
FabrikantVishay
€ 3,00
Each
Aantal stuks
10A SCR D2PAK (TO-263) 1200V 200A Surface Mount 60mA 2V 100mA 3 10.67mm 9.65mm 4.83mm 10.67 x 9.65 x 4.83mm
RS-stocknr. 165-2611
FabrikantnummerVS-ST230C16C0
FabrikantVishay
€ 62,044
Each (In a Box of 12)
Aantal stuks
410A PCT TO-200AB 1600V 5970A Screw Mount 150mA 3V 600mA 3 42mm 42mm 14.4mm 42 x 42 x 14.4mm
RS-stocknr. 395-3496
FabrikantnummerVS-50RIA40
FabrikantVishay
€ 16,08
Each
Aantal stuks
50A SCR TO-65 400V 1490A Thread Mount 100mA 2.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS-stocknr. 227-9214
FabrikantnummerVS-ST230C16C0
FabrikantVishay
€ 66,78
Each
Aantal stuks
410A PCT TO-200AB 1600V 5970A Screw Mount 150mA 3V 600mA 3 42mm 42mm 14.4mm 42 x 42 x 14.4mm
RS-stocknr. 919-4404
FabrikantnummerVS-40TPS12A-M3
FabrikantVishay
€ 6,596
Each (In a Tube of 25)
Aantal stuks
35A SCR TO-247AC 1200V 600A Through Hole 40mA 2.5V 150mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
RS-stocknr. 301-619
FabrikantnummerVS-40TPS12A-M3
FabrikantVishay
€ 8,10
Each
Aantal stuks
35A SCR TO-247AC 1200V 600A Through Hole 40mA 2.5V 150mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
RS-stocknr. 708-4244
FabrikantnummerVS-16TTS12S-M3
FabrikantVishay
€ 1,93
Each
Aantal stuks
10A SCR D2PAK (TO-263) 1200V 200A Surface Mount 60mA 2V 100mA 3 10.67mm 9.65mm 4.83mm 10.67 x 9.65 x 4.83mm
RS-stocknr. 169-5920
Fabrikantnummer50RIA40
FabrikantVishay
€ 11,25
Each (In a Bag of 100)
Aantal stuks
50A SCR TO-65 400V 1490A Thread Mount 100mA 2.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS-stocknr. 918-9806
FabrikantnummerVS-16TTS12S-M3
FabrikantVishay
€ 1,578
Each (In a Tube of 50)
Aantal stuks
10A SCR D2PAK (TO-263) 1200V 200A Surface Mount 90mA 3V 150mA 3 10.67mm 9.65mm 4.83mm 10.67 x 9.65 x 4.83mm