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 108 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. 168-6662
Mfr. Part No.TYN1225RG
PHP127.109
Each (In a Tube of 50)
units
16A SCR TO-220AB 1200V 260A Through Hole 40mA 1.5V 50mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS Stock No. 687-1000
Mfr. Part No.TYN1225RG
PHP140.75
Each
units
16A SCR TO-220AB 1200V 260A Through Hole 40mA 1.5V 50mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS Stock No. 687-1022
Mfr. Part No.X0405MF 1AA2
PHP28.099
Each (In a Pack of 10)
units
0.9A SCR TO-202 600V 33A Through Hole 0.05mA 0.8V 5mA 3 10.1mm 4.5mm 7.3mm 10.1 x 4.5 x 7.3mm
RS Stock No. 145-9590
Mfr. Part No.X0405MF 1AA2
PHP13.059
Each (In a Bag of 250)
units
0.9A SCR TO-202 600V 33A Through Hole 0.05mA 0.8V 5mA 3 10.1mm 4.5mm 7.3mm 10.1 x 4.5 x 7.3mm
RS Stock No. 877-3071
Mfr. Part No.TYN612RG
PHP32.416
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. 168-8904
Mfr. Part No.TYN612RG
PHP34.36
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. 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. 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. 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. 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. 165-5771
Mfr. Part No.BTW69-1200N
PHP228.20
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. 829-6858
Mfr. Part No.BTW69-1200N
PHP306.78
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. 168-8046
Mfr. Part No.TXN625RG
PHP91.08
Each (In a Tube of 50)
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. 178-1396
Mfr. Part No.TM8050H-8W
PHP227.099
Each (In a Tube of 30)
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. 355-2841
Mfr. Part No.TS820-600T
PHP61.10
Each
units
5A SCR TO-220AB 600V 73A Through Hole 0.2mA 0.8V 5mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS Stock No. 165-7641
Mfr. Part No.X0402MF 1AA2
PHP17.14
Each (In a Bag of 250)
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. 168-6080
Mfr. Part No.TS420-600T
PHP36.38
Each (In a Tube of 50)
units
2.5A SCR TO-220AB 600V 33A Through Hole 0.2mA 0.8V 5mA 3 10.4mm 4.6mm 9.15mm 10.4 x 4.6 x 9.15mm
RS Stock No. 163-9779
Mfr. Part No.TN4015H-6G-TR
PHP78.40
Each (In a Pack of 5)
units
25A SCR D2PAK 600V 394A Surface Mount 15mA 1.3V 60mA 2 + Tab 10.28mm 9.35mm 4.6mm 10.28 x 9.35 x 4.6mm
New
RS Stock No. 188-8547
Mfr. Part No.TS1220-600B-TR
PHP90.20
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
New
RS Stock No. 188-8305
Mfr. Part No.TS1220-600B-TR
PHP36.042
Each (On a Reel of 2500)
units
12A SCR DPAK - 115A Surface Mount 200µA - 5mA 3 6.73mm 6.22mm 2.17mm 6.73 x 6.22 x 2.17mm