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.

...
Read more Read less

Filters

Viewing 1 - 20 of 485 products
Results per page
Description Price 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 Stock No. 103-8143
Mfr. Part No.BT152-600R
MYR4.738
Each (In a Tube of 50)
units
13A SCR TO-220AB 650V 220A Through Hole 32mA 1.5V 60mA 3 10.3mm 4.7mm 9.4mm 10.3 x 4.7 x 9.4mm
RS Stock No. 905-6178
Mfr. Part No.SKT 1200/16 E
BrandSemikron
MYR1,407.59
Each
units
840A SCR B 14 1600V 30000A Panel Mount 250 (Min)mA 3 (Min)V 500mA 3 - - 26mm 74 (Dia.) x 26mm
RS Stock No. 395-9286
Mfr. Part No.VS-ST230S12P1VPBF
BrandVishay
MYR417.30
Each
units
230A SCR TO-93 1200V 5970A Thread Mount 150mA 3V 600mA 3 35mm 30.33mm 49.5mm 35 x 30.33 x 49.5mm
RS Stock No. 165-2442
Mfr. Part No.VS-ST230S12P1VPBF
BrandVishay
MYR407.759
Each (In a Bag of 12)
units
230A SCR TO-93 1200V 5970A Thread Mount 150mA 3V 600mA 3 35mm 30.33mm 49.5mm 35 x 30.33 x 49.5mm
RS Stock No. 103-5680
Mfr. Part No.BT152-800R
MYR5.56
Each (In a Tube of 50)
units
13A SCR TO-220AB 800V 220A Through Hole 32mA 1.5V 60mA 3 10.3mm 4.7mm 9.4mm 10.3 x 4.7 x 9.4mm
RS Stock No. 165-2611
Mfr. Part No.VS-ST230C16C0
BrandVishay
MYR205.823
Each (In a Box of 12)
units
410A PCT TO-200AB 1600V 5970A Screw Mount 150mA 3V 600mA 3 42mm 42mm 14.4mm 42 x 42 x 14.4mm
RS Stock No. 169-6013
Mfr. Part No.VS-25TTS12PBF
BrandVishay
MYR9.313
Each (In a Tube of 50)
units
16A SCR TO-220AB 1200V 350A Through Hole 45mA 2V 100mA 3 10.54mm 4.57mm 8.76mm 10.54 x 4.57 x 8.76mm
RS Stock No. 227-9214
Mfr. Part No.VS-ST230C16C0
BrandVishay
MYR294.54
Each
units
410A PCT TO-200AB 1600V 5970A Screw Mount 150mA 3V 600mA 3 42mm 42mm 14.4mm 42 x 42 x 14.4mm
RS Stock No. 774-3460
Mfr. Part No.C106MG
BrandLittelfuse
MYR1.795
Each (In a Pack of 10)
units
2.55A SCR TO-225AA 600V 20A Through Hole 500µA 1V 6mA 3 7.74mm 2.66mm 11.04mm 7.74 x 2.66 x 11.04mm
RS Stock No. 177-5202
Mfr. Part No.C106MG
BrandLittelfuse
MYR1.527
Each (In a Box of 500)
units
2.55A SCR TO-225AA 600V 20A Through Hole 500µA 1V 6mA 3 7.74mm 2.66mm 11.04mm 7.74 x 2.66 x 11.04mm
RS Stock No. 165-2440
Mfr. Part No.VS-ST180S12P1VPBF
BrandVishay
MYR357.13
Each (In a Bag of 12)
units
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 Stock No. 877-3071
Mfr. Part No.TYN612RG
MYR3.74
Each (In a Pack of 10)
units
8A SCR TO-220AB 600V 145A Through Hole 200µA 0.8V 5mA 3 10.4mm 4.6mm 15.75mm 10.4 x 4.6 x 15.75mm
RS Stock No. 395-9258
Mfr. Part No.VS-ST180S12P1VPBF
BrandVishay
MYR525.51
Each
units
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 Stock No. 168-8904
Mfr. Part No.TYN612RG
MYR3.178
Each (In a Tube of 50)
units
8A SCR TO-220AB 600V 145A Through Hole 200µA 0.8V 5mA 3 10.4mm 4.6mm 15.75mm 10.4 x 4.6 x 15.75mm
RS Stock No. 485-4299
Mfr. Part No.BT169G,112
MYR0.528
Each (In a Pack of 25)
units
0.5A SCR SPT 600V 9A Through Hole 0.2mA 0.8V 5mA 3 4.8mm 4.2mm 5.2mm 4.8 x 4.2 x 5.2mm
RS Stock No. 700-5591
Mfr. Part No.VS-70TPS12PBF
BrandVishay
MYR33.23
Each
units
70A SCR Super-247 1200V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS Stock No. 145-1769
Mfr. Part No.VS-70TPS12PBF
BrandVishay
MYR24.486
Each (In a Tube of 25)
units
70A SCR Super-247 1200V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS Stock No. 166-0389
Mfr. Part No.BT169G,112
MYR0.346
Each (In a Bag of 1000)
units
0.5A SCR SPT 600V 9A Through Hole 0.2mA 0.8V 5mA 3 4.8mm 4.2mm 5.2mm 4.8 x 4.2 x 5.2mm
RS Stock No. 772-5478
Mfr. Part No.CR02AM-8-B#F00
MYR2.067
Each (In a Pack of 15)
units
0.3A SCR TO-92 400V 10A Through Hole 100µA 0.8V 3mA 3 5mm 3.9mm 5mm 5 x 3.9 x 5mm
RS Stock No. 165-2886
Mfr. Part No.VS-110RKI120PBF
BrandVishay
MYR273.595
Each (In a Bag of 25)
units
110A PCT TO-94 1200V 2180A Thread Mount 120mA 2V 200mA 3 29.5mm 27mm 188mm 29.5 x 27 x 188mm
Related Products
The IXYS CLA40PD phase leg thyristor contains two ...
Description:
The IXYS CLA40PD phase leg thyristor contains two series connected thyristors and is suitable for use in single limb AC and DC power control applications. The device is housed in 5-pin through hole PCB mounting package.
Infineon offer a broad range of PowerBLOCK Thyristor ...
Description:
Infineon offer a broad range of PowerBLOCK Thyristor modules that have a (Silicon control rectifier) SCR/SCR Phase Control arrangement. The base plate incorporates a pressure contact technology and varies in size from 20mm, 34mm, 50mm and 60mm. The base is ...
A Thyristor is a solid-state semiconductor device with ...
Description:
A Thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. They act as bistable switches, conducting when their gate receives a current trigger, and continue to conduct while they are forward biased. Thyristors are ...
Infineon offer a broad range of PowerBLOCK Thyristor ...
Description:
Infineon offer a broad range of PowerBLOCK Thyristor modules that have a (Silicon control rectifier) SCR/SCR Phase Control arrangement. The base plate incorporates a pressure contact technology and varies in size from 20mm, 34mm, 50mm and 60mm. The base is ...