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. 167-320
FabrikantnummerVS-40TPS12-M3
FabrikantVishay
7,83 €
Each
Aantal stuks
35A SCR TO-247AC 1200V 600A Through Hole 150mA 2.5V 150mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
RS-stocknr. 145-2566
FabrikantnummerVS-40TPS12-M3
FabrikantVishay
6,38 €
Each (In a Tube of 25)
Aantal stuks
35A SCR TO-247AC 1200V 600A Through Hole 150mA 2.5V 150mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
RS-stocknr. 169-5961
FabrikantnummerST330S16P1PBF
FabrikantVishay
137,08 €
Each (In a Bag of 6)
Aantal stuks
330A SCR TO-118 1600V 9420A Stud 200mA 3V 600mA 3 49mm 42.5mm 74.5mm 49 x 42.5 x 74.5mm
RS-stocknr. 395-9315
FabrikantnummerVS-ST330S16P1PBF
FabrikantVishay
426,13 €
Each
Aantal stuks
330A SCR TO-118 1600V 9420A Stud 200mA 3V 600mA 3 49mm 42.5mm 74.5mm 49 x 42.5 x 74.5mm
RS-stocknr. 169-5959
FabrikantnummerST110S16P1PBF
FabrikantVishay
59,579 €
Each (In a Bag of 25)
Aantal stuks
110A PCT TO-94 1600V 2830A Thread Mount 150mA 3V 600mA 3 29.5mm - 50mm -
RS-stocknr. 395-9242
FabrikantnummerVS-ST110S16P1PBF
FabrikantVishay
60,62 €
Each
Aantal stuks
110A PCT TO-94 1600V 2830A Thread Mount 150mA 3V 600mA 3 29.5mm - 50mm -
RS-stocknr. 169-5873
FabrikantnummerVS-16TTS12PBF
FabrikantVishay
2,509 €
Each (In a Tube of 50)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 287-9684
FabrikantnummerVS-16TTS12-M3
FabrikantVishay
2,94 €
Each
Aantal stuks
10A SCR TO-220AC 1200V 200A Through Hole 60mA 2V 100mA 3 10.54mm 4.57mm 8.76mm 10.54 x 4.57 x 8.76mm
RS-stocknr. 169-5900
FabrikantnummerVS-25RIA120M
FabrikantVishay
7,752 €
Each (In a Bag of 100)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 395-2869
FabrikantnummerVS-25RIA120M
FabrikantVishay
15,83 €
Each
Aantal stuks
25A SCR TO-48 1200V 440A Thread Mount 60mA 2V 130mA 2 16.51mm - 41.8mm -
RS-stocknr. 169-5960
FabrikantnummerST330S12P1PBF
FabrikantVishay
131,613 €
Each (In a Bag of 6)
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. 919-4384
FabrikantnummerVS-30TPS16-M3
FabrikantVishay
2,46 €
Each (In a Tube of 25)
Aantal stuks
20A SCR TO-247AC 1600V 300A Through Hole 45mA 2V 100mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
RS-stocknr. 227-9090
FabrikantnummerVS-22RIA120
FabrikantVishay
18,57 €
Each
Aantal stuks
22A SCR TO-48 1200V 420A Thread Mount 60mA 2V 130mA 2 16.51mm - 41.8mm -
RS-stocknr. 165-2440
FabrikantnummerVS-ST180S12P1VPBF
FabrikantVishay
70,678 €
Each (In a Bag of 12)
Aantal stuks
200A SCR TO-93 1200V 5230A Thread Mount 150mA 3V 600mA 3 35mm 30.33mm 49.5mm 35 x 30.33 x 49.5mm
RS-stocknr. 700-5636
FabrikantnummerVS-ST230S08P0VPBF
FabrikantVishay
72,12 €
Each
Aantal stuks
230A SCR TO-93 800V 5970A Thread Mount 150mA 3V 600mA 3 35mm 30.33mm 49.5mm 35 x 30.33 x 49.5mm
RS-stocknr. 300-420
FabrikantnummerVS-30TPS16PBF
FabrikantVishay
2,88 €
Each
Aantal stuks
20A SCR TO-247AC 1600V 300A Through Hole 45mA 2V 100mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
RS-stocknr. 919-4375
FabrikantnummerVS-30TPS12-M3
FabrikantVishay
4,528 €
Each (In a Tube of 25)
Aantal stuks
20A SCR TO-247AC 1200V 300A Through Hole 45mA 2V 100mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
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. 165-2846
FabrikantnummerVS-ST230S08P0VPBF
FabrikantVishay
66,013 €
Each (In a Bag of 12)
Aantal stuks
230A SCR TO-93 800V 5970A Thread Mount 150mA 3V 600mA 3 35mm 30.33mm 49.5mm 35 x 30.33 x 49.5mm
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