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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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. 708-4446
Mfr. Part No.VS-40TPS16-M3
BrandVishay
PHP258.99
Each
units
35A SCR TO-247AC 1600V 600A Through Hole 150mA 2.5V 150mA 3 15.87mm 5.31mm 20.7mm 15.87 x 5.31 x 20.7mm
RS Stock No. 714-2643
Mfr. Part No.BTW69-800RG
PHP306.41
Each
units
32A SCR TOP3 800V 610A Through Hole 80mA 1.3V 150mA 3 15.5mm 4.6mm 12.85mm 15.5 x 4.6 x 12.85mm
RS Stock No. 177-5179
Mfr. Part No.2N6509TG
BrandLittelfuse
PHP64.60
Each (In a Tube of 50)
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- SCR TO-220 800V 250A Through Hole 75mA 1.5V 80mA 3 10.28mm 4.82mm 15.75mm 10.28 x 4.82 x 15.75mm
RS Stock No. 262-488
Mfr. Part No.BT152-600R
PHP48.11
Each
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. 102-3581
Mfr. Part No.BTW69-800RG
PHP259.84
Each (In a Tube of 30)
units
32A SCR TOP3 800V 610A Through Hole 80mA 1.3V 150mA 3 15.5mm 4.6mm 12.85mm 15.5 x 4.6 x 12.85mm
RS Stock No. 545-0006
Mfr. Part No.2N6509G
BrandLittelfuse
PHP71.52
Each
units
16A SCR TO-220AB 800V 250A Through Hole 30mA 1.5V 40mA 3 10.28mm 4.82mm 9.28mm 10.28 x 4.82 x 9.28mm
RS Stock No. 121-6890
Mfr. Part No.CR25RM-12D#B00
PHP210.12
Each (In a Pack of 2)
units
25A SCR TO-3PFM 600V 360A Through Hole 30mA 1.5V 15mA 3 15.6mm 5.5mm 19.9mm 15.6 x 5.5 x 19.9mm
RS Stock No. 103-2940
Mfr. Part No.2N6509G
BrandLittelfuse
PHP81.944
Each (In a Box of 500)
units
16A SCR TO-220AB 800V 250A Through Hole 30mA 1.5V 40mA 3 10.28mm 4.82mm 9.28mm 10.28 x 4.82 x 9.28mm
RS Stock No. 760-9275
Mfr. Part No.DCR950D14
BrandDynex
PHP4,219.00
Each
units
950A SCR Type G 1400V 12800A Stud 300mA 3V 200mA 3 - - 14.5mm 47 (Dia.) x 14.5mm
RS Stock No. 395-2724
Mfr. Part No.VS-16RIA100
BrandVishay
PHP514.60
Each
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16A SCR TO-48 1000V 360A Thread Mount 60mA 2V 130mA 2 16.51mm - 41.8mm -
RS Stock No. 878-1811
Mfr. Part No.SK025L
BrandLittelfuse
PHP97.174
Each (In a Pack of 10)
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25A SCR TO-220 1000V 300A Through Hole 35mA 1.5V 50mA 3 10.67mm 4.78mm 15.75mm 10.67 x 4.78 x 15.75mm
RS Stock No. 905-6037
Mfr. Part No.SKT 24/12 E
BrandSemikron
PHP912.87
Each
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22A SCR B 2 1200V 450A Thread Mount 100 (Min)mA 3 (Min)V 150mA 3 - - 41mm 14 (Dia.) x 41mm
RS Stock No. 169-5894
Mfr. Part No.16RIA100
BrandVishay
PHP282.07
Each (In a Bag of 100)
units
16A SCR TO-48 1000V 360A Thread Mount 60mA 2V 130mA 2 16.51mm - 41.8mm -
RS Stock No. 800-9200
Mfr. Part No.2N6509TG
BrandLittelfuse
PHP63.445
Each (In a Pack of 10)
units
- SCR TO-220 800V 250A Through Hole 75mA 1.5V 80mA 3 10.28mm 4.82mm 15.75mm 10.28 x 4.82 x 15.75mm
RS Stock No. 103-5140
Mfr. Part No.2N6404G
BrandLittelfuse
PHP34.493
Each (In a Box of 500)
units
10A SCR TO-220AB 600V 160A Through Hole 60mA 2.5V 60mA 3 10.28mm 4.82mm 15.75mm 10.28 x 4.82 x 15.75mm
RS Stock No. 301-619
Mfr. Part No.VS-40TPS12A-M3
BrandVishay
PHP327.59
Each
units
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 Stock No. 509-459
Mfr. Part No.BT151X-500R,127
PHP27.93
Each (In a Pack of 5)
units
7.5A SCR TO-220F 500V 110A Through Hole 15mA 1.5V 20mA 3 10.3mm 4.6mm 9.3mm 10.3 x 4.6 x 9.3mm
RS Stock No. 905-6046
Mfr. Part No.SKT 24/16 E
BrandSemikron
PHP747.35
Each
units
22A SCR - 1600V 450A Thread Mount 100 (Min)A 3 (Min)V 150mA 3 - - 41mm 14 (Dia.) x 41mm
RS Stock No. 103-8143
Mfr. Part No.BT152-600R
PHP36.146
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. 768-9013
Mfr. Part No.N0910LC260-U9900
BrandIXYS
PHP7,413.03
Each
units
910A PCT N0910 2600V 9200A Stud 300mA 3V 1000mA 2 - - 27mm 58.5 (Dia.) x 27mm
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