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. 102-3580
FabrikantnummerBTW69-1200RG
€ 5,615
Each (In a Tube of 30)
Aantal stuks
32A SCR TOP3 1200V 610A Through Hole 80mA 1.3V 150mA 3 15.5mm 4.6mm 12.85mm 15.5 x 4.6 x 12.85mm
RS-stocknr. 714-2640
FabrikantnummerBTW69-1200RG
€ 6,52
Each
Aantal stuks
32A SCR TOP3 1200V 610A Through Hole 80mA 1.3V 150mA 3 15.5mm 4.6mm 12.85mm 15.5 x 4.6 x 12.85mm
RS-stocknr. 687-1013
FabrikantnummerX0402MF 1AA2
€ 0,706
Each (In a Pack of 10)
Aantal stuks
0.9A SCR TO-202 600V 33A Through Hole 0.2mA 0.8V 5mA 3 10.1mm 4.5mm 7.3mm 10.1 x 4.5 x 7.3mm
RS-stocknr. 165-7641
FabrikantnummerX0402MF 1AA2
€ 0,519
Each (In a Bag of 250)
Aantal stuks
0.9A SCR TO-202 600V 33A Through Hole 0.2mA 0.8V 5mA 3 10.1mm 4.5mm 7.3mm 10.1 x 4.5 x 7.3mm
RS-stocknr. 168-7875
FabrikantnummerTYN608RG
€ 0,911
Each (In a Tube of 50)
Aantal stuks
8A SCR TO-220AB 600V 100A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
RS-stocknr. 810-3693
FabrikantnummerTYN608RG
€ 0,911
Each (In a Pack of 10)
Aantal stuks
8A SCR TO-220AB 600V 100A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
RS-stocknr. 687-0940
FabrikantnummerP0102BL 5AA4
€ 0,533
Each (In a Pack of 10)
Aantal stuks
0.16A SCR SOT-23 200V 7A Surface Mount 0.2mA 0.8V 6mA 3 2.9mm 1.3mm 0.95mm 2.9 x 1.3 x 0.95mm
RS-stocknr. 168-6651
FabrikantnummerP0102BL 5AA4
€ 0,24
Each (On a Reel of 3000)
Aantal stuks
0.16A SCR SOT-23 200V 7A Surface Mount 0.2mA 0.8V 6mA 3 2.9mm 1.3mm 0.95mm 2.9 x 1.3 x 0.95mm
RS-stocknr. 811-1050
FabrikantnummerTYN412RG
€ 1,071
Each (In a Pack of 10)
Aantal stuks
12A SCR TO-220 - 145A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.75mm 10.4 x 4.6 x 15.75mm
RS-stocknr. 145-8883
FabrikantnummerBTW67-1000
€ 5,449
Each (In a Bag of 50)
Aantal stuks
32A SCR RD91 1000V 610A Panel Mount 80mA 1.3V 150mA 3 40mm 27mm 14mm 40 x 27 x 14mm
RS-stocknr. 877-2655
FabrikantnummerBTW67-1000
€ 6,42
Each
Aantal stuks
32A SCR RD91 1000V 610A Panel Mount 80mA 1.3V 150mA 3 40mm 27mm 14mm 40 x 27 x 14mm
RS-stocknr. 168-7901
FabrikantnummerTYN412RG
€ 1,058
Each (In a Tube of 50)
Aantal stuks
12A SCR TO-220 - 145A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.75mm 10.4 x 4.6 x 15.75mm
RS-stocknr. 687-0962
FabrikantnummerX0202MN 5BA4
€ 0,736
Each (In a Pack of 5)
Aantal stuks
0.8A SCR SOT-223 600V 25A Surface Mount 0.2mA 0.8V 5mA 3+Tab 6.5mm 3.5mm 1.8mm 6.5 x 3.5 x 1.8mm
RS-stocknr. 829-0699
FabrikantnummerFLC01-200H
€ 1,024
Each (In a Pack of 10)
Aantal stuks
- SCR IPAK (TO-251) 600V 190A Through Hole 5mA - - 3 6.7mm 2.4mm 7.45mm 6.7 x 2.4 x 7.45mm
RS-stocknr. 687-1038
FabrikantnummerTYN812RG
€ 1,705
Each (In a Pack of 2)
Aantal stuks
8A SCR TO-220AB 800V 145A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS-stocknr. 145-8662
FabrikantnummerFLC01-200H
€ 0,773
Each (In a Tube of 50)
Aantal stuks
- - IPAK (TO-251) 600V 190A Through Hole 5mA - - 3 6.7mm 2.4mm 7.45mm 6.7 x 2.4 x 7.45mm
RS-stocknr. 124-1122
FabrikantnummerTM8050H-8W
€ 4,865
Each (In a Pack of 2)
Aantal stuks
50A SCR TO-247 800V 731A Through Hole 50mA 1.5V 100mA 3 15.75mm 5.15mm 20.15mm 15.75 x 5.15 x 20.15mm
RS-stocknr. 355-2841
FabrikantnummerTS820-600T
€ 1,26
Each
Aantal stuks
5A SCR TO-220AB 600V 73A Through Hole 0.2mA 0.8V 5mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS-stocknr. 810-7392
FabrikantnummerBTW69-600RG
€ 5,44
Each
Aantal stuks
- SCR TOP3 - - Through Hole - - - 3 15.5mm 4.6mm 21.1mm 15.5 x 4.6 x 21.1mm
RS-stocknr. 145-9467
FabrikantnummerX0403MF 1AA2
€ 0,598
Each (In a Bag of 250)
Aantal stuks
4A SCR TO-202 600V 33A Through Hole - 0.8V 5mA 3 10.1mm 4.5mm 7.3mm 10.1 x 4.5 x 7.3mm