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. 485-4299
Mfr. Part No.BT169G,112
HK$2.46
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. 171-9665
Mfr. Part No.P0640SCLRP
BrandLittelfuse
HK$12.70
Each (In a Pack of 5)
units
500A SIDACtor DO-214AA - 35A Surface Mount 2.2mA 4V 150mA 2 4.6mm 3.95mm 2.45mm 4.6 x 3.95 x 2.45mm
RS Stock No. 188-8303
Mfr. Part No.TN1625-1000G-TR
HK$9.841
Each (On a Reel of 1000)
units
16A SCR D2PAK - 200A Surface Mount - - 40mA 3 10.28mm 9.35mm 4.37mm 10.28 x 9.35 x 4.37mm
RS Stock No. 178-5036
Mfr. Part No.BT148-600R
HK$3.466
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. 811-1050
Mfr. Part No.TYN412RG
HK$9.294
Each (In a Pack of 10)
units
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 Stock No. 103-5140
Mfr. Part No.2N6404G
BrandLittelfuse
HK$6.046
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. 687-1013
Mfr. Part No.X0402MF 1AA2
HK$5.045
Each (In a Pack of 10)
units
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 Stock No. 165-7701
Mfr. Part No.P0102DA 5AL3
HK$0.842
Each (On a Reel of 2000)
units
0.5A SCR TO-92 400V 8A Through Hole 0.2mA 0.8V 5mA 3 4.7mm 3.7mm 4.4mm 4.7 x 3.7 x 4.4mm
RS Stock No. 169-5834
Mfr. Part No.16RIA120
BrandVishay
HK$46.919
Each (In a Bag of 100)
units
16A SCR TO-48 1200V 360A Thread Mount 60mA 2V 130mA 2 16.51mm - 41.8mm -
RS Stock No. 188-8547
Mfr. Part No.TS1220-600B-TR
HK$14.702
Each (In a Pack of 5)
units
12A SCR DPAK - 115A Surface Mount 200µA - 5mA 3 6.73mm 6.22mm 2.17mm 6.73 x 6.22 x 2.17mm
RS Stock No. 768-9013
Mfr. Part No.N0910LC260-U9900
BrandIXYS
HK$1,609.85
Each
units
910A PCT N0910 2600V 9200A Stud 300mA 3V 1000mA 2 - - 27mm 58.5 (Dia.) x 27mm
RS Stock No. 168-4505
Mfr. Part No.N0992YS020-U9900
BrandIXYS
HK$1,257.48
Each (In a Box of 24)
units
992A SCR - 200V 12100A Stud 150mA 3V 500mA 3 - - 15.1mm 42 (Dia.) x 15.1mm
RS Stock No. 793-1920
Mfr. Part No.S6065KTP
BrandLittelfuse
HK$58.30
Each
units
65A SCR TO-218AC 600V 950A Through Hole 50mA 2V 80mA 3 16mm 4.78mm 21.21mm 16 x 4.78 x 21.21mm
RS Stock No. 918-9802
Mfr. Part No.VS-16TTS08-M3
BrandVishay
HK$22.918
Each (In a Tube of 50)
units
10A SCR TO-220AB 800V 200A Through Hole 90mA 3V 150mA 3 10.51mm 15.49mm 4.65mm 10.51 x 15.49 x 4.65mm
RS Stock No. 687-1038
Mfr. Part No.TYN812RG
HK$12.87
Each (In a Pack of 2)
units
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 Stock No. 878-1811
Mfr. Part No.SK025L
BrandLittelfuse
HK$16.931
Each (In a Pack of 10)
units
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. 395-9286
Mfr. Part No.VS-ST230S12P1VPBF
BrandVishay
HK$750.68
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. 264-0717
Mfr. Part No.VS-16TTS08S-M3
BrandVishay
HK$18.46
Each
units
10A SCR D2PAK (TO-263) 800V 200A Surface Mount 60mA 2V 100mA 3 10.67mm 9.65mm 4.83mm 10.67 x 9.65 x 4.83mm
RS Stock No. 102-3581
Mfr. Part No.BTW69-800RG
HK$52.596
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. 700-5594
Mfr. Part No.VS-70TPS16PBF
BrandVishay
HK$70.06
Each
units
70A SCR Super-247 1600V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
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