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. 395-9315
Mfr. Part No.VS-ST330S16P1PBF
BrandVishay
$296.84
Each
units
330A SCR TO-118 1600V 9420A Stud 200mA 3V 600mA 3 49mm 42.5mm 74.5mm 49 x 42.5 x 74.5mm
RS Stock No. 169-5961
Mfr. Part No.ST330S16P1PBF
BrandVishay
$235.76
Each (In a Bag of 6)
units
330A SCR TO-118 1600V 9420A Stud 200mA 3V 600mA 3 49mm 42.5mm 74.5mm 49 x 42.5 x 74.5mm
RS Stock No. 168-8905
Mfr. Part No.TYN825RG
$3.46
Each (In a Tube of 50)
units
16A SCR TO-220AB 800V 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. 877-3074
Mfr. Part No.TYN825RG
$4.19
Each (In a Pack of 5)
units
16A SCR TO-220AB 800V 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. 177-5212
Mfr. Part No.2N6508G
BrandLittelfuse
$2.27
Each (In a Box of 500)
units
16A SCR TO-220AB 600V 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. 171-0024
Mfr. Part No.C106M1G
BrandLittelfuse
$0.463
Each (In a Box of 500)
units
2.55A SCR TO-225 600V 20A Through Hole 0.2mA 0.8V 3mA 3 7.74mm 2.66mm 11.04mm 7.74 x 2.66 x 11.04mm
RS Stock No. 862-4929
Mfr. Part No.2N6508G
BrandLittelfuse
$1.88
Each (In a Pack of 10)
units
16A SCR TO-220AB 600V 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. 625-4994
Mfr. Part No.C106M1G
BrandLittelfuse
$0.95
Each
units
2.55A SCR TO-225 600V 20A Through Hole 0.2mA 0.8V 3mA 3 7.74mm 2.66mm 11.04mm 7.74 x 2.66 x 11.04mm
RS Stock No. 103-2939
Mfr. Part No.2N6507G
BrandLittelfuse
$2.27
Each (In a Box of 500)
units
16A SCR TO-220AB 400V 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. 544-9999
Mfr. Part No.2N6507G
BrandLittelfuse
$2.20
Each
units
16A SCR TO-220AB 400V 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. 165-6236
Mfr. Part No.VS-50RIA100
BrandVishay
$23.31
Each (In a Bag of 100)
units
80A SCR TO-65 1000V 1490A Thread Mount 250mA 3.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS Stock No. 145-9590
Mfr. Part No.X0405MF 1AA2
$0.897
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. 145-1770
Mfr. Part No.VS-70TPS16PBF
BrandVishay
$10.96
Each (In a Tube of 25)
units
70A SCR Super-247 1600V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS Stock No. 168-7875
Mfr. Part No.TYN608RG
$1.64
Each (In a Tube of 50)
units
8A SCR TO-220AB 600V 100A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
RS Stock No. 700-5594
Mfr. Part No.VS-70TPS16PBF
BrandVishay
$13.16
Each
units
70A SCR Super-247 1600V 1400A Through Hole 100mA 1.5V 200mA 3 16.1mm - 20.8mm -
RS Stock No. 687-1022
Mfr. Part No.X0405MF 1AA2
$1.21
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. 810-3693
Mfr. Part No.TYN608RG
$1.69
Each (In a Pack of 10)
units
8A SCR TO-220AB 600V 100A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
RS Stock No. 817-2453
Mfr. Part No.VS-50RIA20
BrandVishay
$20.58
Each
units
80A SCR TO-65 200V 1490A Thread Mount 250mA 3.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS Stock No. 817-2459
Mfr. Part No.VS-50RIA100
BrandVishay
$32.27
Each
units
80A SCR TO-65 1000V 1490A Thread Mount 250mA 3.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS Stock No. 168-6673
Mfr. Part No.TYN610RG
$1.94
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
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