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. 357-5103
Mfr. Part No.VS-180RKI80PBF
BrandVishay
PHP3,263.93
Each
units
180A SCR TO-93 800V 4000A Thread Mount 150mA 2.5V 600mA 3 - - 234.5mm 35 (Dia.) x 234.5mm
RS Stock No. 829-0469
Mfr. Part No.TXN625RG
PHP100.982
Each (In a Pack of 5)
units
16A SCR TO-220AB 600V 314A Through Hole 40mA 1.3V 50mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
RS Stock No. 395-3496
Mfr. Part No.VS-50RIA40
BrandVishay
PHP1,071.75
Each
units
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 Stock No. 169-5888
Mfr. Part No.180RKI80PBF
BrandVishay
PHP3,071.78
Each (In a Bag of 12)
units
180A SCR TO-93 800V 4000A Thread Mount 150mA 2.5V 600mA 3 - - 234.5mm 35 (Dia.) x 234.5mm
RS Stock No. 178-5036
Mfr. Part No.BT148-600R
PHP16.49
Each (In a Tube of 120)
units
2.5A SCR SOT-82 600V 38A Through Hole 0.2mA 1.5V 6mA 3 7.8mm 2.8mm 11.1mm 7.8 x 2.8 x 11.1mm
RS Stock No. 878-1842
Mfr. Part No.SK055R
BrandLittelfuse
PHP146.925
Each (In a Pack of 500)
units
55A SCR TO-220 1000V 650A Through Hole 40mA 1.5V 60mA 3 10.67mm 4.78mm 15.75mm 10.67 x 4.78 x 15.75mm
RS Stock No. 920-0798
Mfr. Part No.CS35-12IO4
BrandIXYS
PHP1,807.547
Each (In a Tube of 10)
units
69A SCR TO-208AC 1200V 1340A Thread Mount 100mA 1.5V 80mA 2 19.62mm 17mm 41.3mm 19.62 x 17 x 41.3mm
RS Stock No. 919-4384
Mfr. Part No.VS-30TPS16-M3
BrandVishay
PHP138.915
Each (In a Tube of 25)
units
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 Stock No. 509-443
Mfr. Part No.BT151S-650R
PHP17.082
Each (In a Pack of 10)
units
7.5A SCR DPAK (TO-252) 650V 132A Surface Mount 15mA 1.5V 20mA 3 6.73mm 6.22mm 2.38mm 6.73 x 6.22 x 2.38mm
RS Stock No. 197-804
BrandIXYS
PHP1,652.09
Each
units
69A SCR TO-208AC 1200V 1340A Thread Mount 100mA 1.5V 80mA 2 19.62mm 17mm 41.3mm 19.62 x 17 x 41.3mm
RS Stock No. 485-4299
Mfr. Part No.BT169G,112
PHP5.55
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. 700-5566
Mfr. Part No.VS-111RKI120PBF
BrandVishay
PHP2,397.57
Each
units
110A PCT TO-94 1200V 2180A Thread Mount 120mA 2V 200mA 3 29.5mm 27mm 188mm 29.5 x 27 x 188mm
RS Stock No. 792-0712
Mfr. Part No.BT152-500RT
PHP27.137
Each (In a Pack of 10)
units
13A SCR TO-220AB 500V 220A Through Hole 32mA 1.5V 60mA 3 10.3mm 4.7mm 16 (With Tab)mm 10.3 x 4.7 x 16mm
RS Stock No. 920-0751
Mfr. Part No.CS23-12IO2
BrandIXYS
PHP1,057.397
Each (In a Tube of 10)
units
32A SCR TO-208AA 1200V 480A Thread Mount 50mA 2.5V 100mA 3 15.7mm 14mm 39.5mm 15.7 x 14 x 39.5mm
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
RS Stock No. 165-2790
Mfr. Part No.VS-111RKI120PBF
BrandVishay
PHP2,130.117
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
RS Stock No. 300-420
Mfr. Part No.VS-30TPS16PBF
BrandVishay
PHP105.46
Each
units
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 Stock No. 905-6074
Mfr. Part No.SKT 16/16 E
BrandSemikron
PHP945.88
Each
units
18A SCR A 46 1600V 2000A Thread Mount 150 (Min)mA 3 (Min)V 250mA 7 93mm 20mm 30mm 93 x 20 x 30mm
RS Stock No. 124-1122
Mfr. Part No.TM8050H-8W
PHP267.41
Each (In a Pack of 2)
units
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 Stock No. 357-4324
Mfr. Part No.VS-80RIA80PBF
BrandVishay
PHP1,958.25
Each
units
80A PCT TO-94 800V 1990A Thread Mount 120mA 2.5V 200mA 3 29.5mm 27mm 188mm 29.5 x 27 x 188mm
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