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. 829-6858
Mfr. Part No.BTW69-1200N
HK$50.23
Each
units
31A SCR TOP3 1200V 763A Through Hole 50mA 1.3V 100mA 3 15.5mm 4.6mm 21.1mm 15.5 x 4.6 x 21.1mm
RS Stock No. 165-5771
Mfr. Part No.BTW69-1200N
HK$31.40
Each (In a Tube of 30)
units
31A SCR TOP3 1200V 763A Through Hole 50mA 1.3V 100mA 3 15.5mm 4.6mm 21.1mm 15.5 x 4.6 x 21.1mm
RS Stock No. 102-3580
Mfr. Part No.BTW69-1200RG
HK$55.007
Each (In a Tube of 30)
units
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 Stock No. 687-1053
Mfr. Part No.TYN610RG
HK$12.074
Each (In a Pack of 5)
units
6.4A SCR TO-220AB 600V 105A Through Hole 15mA 1.5V 30mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS Stock No. 714-2669
Mfr. Part No.TYN1012RG
HK$19.208
Each (In a Pack of 5)
units
8A SCR TO-220AB 1000V 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. 168-6673
Mfr. Part No.TYN610RG
HK$10.319
Each (In a Tube of 50)
units
6.4A SCR TO-220AB 600V 105A Through Hole 15mA 1.5V 30mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS Stock No. 103-1577
Mfr. Part No.TYN1012RG
HK$16.268
Each (In a Tube of 50)
units
8A SCR TO-220AB 1000V 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. 714-2640
Mfr. Part No.BTW69-1200RG
HK$64.95
Each
units
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 Stock No. 188-8302
Mfr. Part No.TN1215-800G-TR
HK$7.57
Each (On a Reel of 1000)
units
12A SCR D2PAK - 145A Surface Mount 15mA - 30mA 3 10.28mm 9.35mm 4.37mm 10.28 x 9.35 x 4.37mm
RS Stock No. 168-6278
Mfr. Part No.P0111MN 5AA4
HK$3.224
Each (On a Reel of 1000)
units
0.5A SCR SOT-223 600V 8A Surface Mount 0.025mA 0.8V 5mA 3+Tab 6.5mm 3.5mm 1.8mm 6.5 x 3.5 x 1.8mm
RS Stock No. 877-3071
Mfr. Part No.TYN612RG
HK$10.319
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. 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. 811-1050
Mfr. Part No.TYN412RG
HK$10.398
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. 168-8062
Mfr. Part No.TS1220-600B
HK$11.574
Each (In a Tube of 75)
units
8A SCR DPAK (TO-252) 700V - Surface Mount 200µA 0.8V 5mA 3 6.73mm 6.22mm 2.4mm 6.73 x 6.22 x 2.4mm
RS Stock No. 163-9787
Mfr. Part No.TN4015H-6I
HK$12.828
Each (In a Pack of 5)
units
25A SCR TO-220AB 600V 394A Through Hole 15mA 1.3V 60mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
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. 687-0984
Mfr. Part No.P0111MA 1AA3
HK$3.783
Each (In a Pack of 20)
units
0.5A SCR TO-92 600V 8A Through Hole 0.025mA 0.8V 5mA 3 4.7mm 3.7mm 4.4mm 4.7 x 3.7 x 4.4mm
New
RS Stock No. 192-4600
Mfr. Part No.TN5015H-6G
HK$14.938
Each (In a Tube of 50)
units
30A SCR D2PAK 600V 493A Surface Mount 15mA 1.3V 60mA 3 10.28mm 9.35mm 4.6mm 10.28 x 9.35 x 4.6mm
RS Stock No. 687-0943
Mfr. Part No.TN1215-600G-TR
HK$13.084
Each (In a Pack of 5)
units
8A SCR D2PAK (TO-263) 600V 145A Surface Mount 15mA 1.3V 30mA 3 10.28mm 9.35mm 4.6mm 10.28 x 9.35 x 4.6mm
RS Stock No. 165-5529
Mfr. Part No.TS820-600B-TR
HK$3.584
Each (On a Reel of 2500)
units
5A SCR DPAK (TO-252) 600V 73A Surface Mount 200µA 0.8V 5mA 3 6.73mm 6.22mm 2.4mm 6.73 x 6.22 x 2.4mm