Fast Power Thyristors 200A – 2000A, Disc Package

Fast Thyristor (TF) AS ENERGITM in disc design is a press pack type fast switching semiconductor device. Fast thyristors meet requirements, such as increased di/dt resistance, low switching losses, short turn-on and turn-off time. Regulating and converting DC and AC currents to 2000A at frequency range is up to 10kHz in circuits with voltages to 3600V (depending on series).

Power disc fast thyristors series TF have the following types (current): 200 A, 250 A, 320 A, 400 A, 500 A, 630 A, 800 A, 1000 A, 1600 A, 2000 Ampere.

Series of high-power disc fast thyristors

Part numbering guide for power disc fast thyristors

Technical passport for power disc fast thyristors

Installation recommendations for power thyristors

Fast thyristors are devices with reduced tq, trr, Qrr, ERQ values designed to operate at higher frequencies modes. The thyristor parameters of VTM, tq, Qrr are interconnected, so a decrease in the value of tq and Qrr leads to an increase in VTM. Fast thyristors are characterized with a very low turn-off time that sets them apart from the standard models. They are used in welding, induction heating and melting, electric transportation, AC drives, UPS, and other systems requiring short turn-on and turn-off times. The thyristors have an industry-standard ceramic sealed housing isolating the functional part and the semiconductor element from mechanical impacts and environment.

The polarity of the thyristor is determined by the icon on the case. On this page are schematic diagrams and circuits of fast thyristors with Anode, Cathode, and control electrode (Gate). The technical specifications, part numbering guide, polarity, dimensions and recommended coolers for thyristors are listed below.

Air and water heat sinks are used to cool the thyristors. To keep electrical losses to a minimum and heat dissipation to a maximum, the necessary torque must be provided during assembly, the so-called pressing force Fm. Correspondence of the achieved clamping force to the required one is determined by the deflection of the traverse. For better heat dissipation of discrete thyristor during assembly, heat conducting paste is used, which is not a prerequisite for installation.

The fast thyristors have a sealed housing isolating the functional part and the semiconductor element from mechanical impacts and environment. This fast thyristor has a disc housing with pressure contacts.

Fast thyristors from AS Energi Global LLC have the following features: low static and dynamic losses, high values of VDRM/VRRM, extensive experience of using the devices in various industries, range of voltages from 300 to 3600 V and amperages from 200 to 2000 A, high resistance to thermal and electric cycling, natural or forced air cooling.

Our company provides a quality guarantee for thyristors of 2 years from the date of purchase. When supplying thyristors, if necessary, we provide quality declaration and certificate of conformity.

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The final price of fast thyristors depends on the voltage class, quantity, delivery terms, manufacturer, country of origin and form of payment.

For questions regarding the acquisition of High Power Thyristors, Diodes send an email request to:

[email protected]

And we will provide you a commercial offer for delivery.
For a large number, we will provide an individual price!!!

We are open to manufacture products at our production facilities
according to your requests and technical task.

Disc Fast Thyristor Series:


TF133...TF933

TF143...TF943

TF153...TF953

TF173, TF273

Fast Thyristors TF133...TF933 (200A – 500A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
200 A
TF233-200 200 (102) 1000-1500 4.5 100 200-2500 1600 6.3-12.5 125 0.04 10 110 T.B2 42x25x14 PDF
TF433-200 200 (102) 1000-1500 4.5 100 200-2500 1600 6.3-12.5 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
250 A
TF133-250 250 (94) 1600-2400 5.0 120 200-2500 1600 20-40 125 0.04 10 110 PT31-1
(T.B2)
48x27x15 PDF
TF233-250 250 (97) 1000-1500 5.4 140 200-2500 1600 8-16 125 0.04 10 110 T.B2 42x25x14 PDF
TF333-250 250 (86) 1600-2400 5.0 120 200-2500 1600 20-40 125 0.05 10 180
100
T.B3
PT31
54x32x20
47x27x15
PDF
TF433-250 250 (97) 1000-1500 5.4 140 200-2500 1600 8-16 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
TF833-250 250 (94) 3000 5.7 162 1000 1000 50-125 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
TF933-250 250 (92) 3000-3600 5.4 140 200-1000 1000 63-80 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
320 A
TF133-320 320 (85) 1600-2400 6.0 320 200-1000 1600 25-50 125 0.04 10 110 PT31-1
(T.B2)
48x27x15 PDF
TF233-320 320 (90) 1000-1500 5.5 150 200-2500 1600 10-20 125 0.04 10 110 T.B2 42x25x14 PDF
TF333-320 320 (85) 1600-2400 6.0 170 200-1000 1600 25-40 125 0.05 10 180 T.B3 54x32x20 PDF
TF433-320 320 (90) 1000-1500 5.5 150 200-2500 1600 10-20 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
400 A
TF133-400 400 (85) 1600-2400 6.6 210 200-1000 1600 50-63 125 0.04 10 110 PT31-1
(T.B2)
48x27x15 PDF
TF233-400 400 (85) 400-1400 6.5 200 200-1000 800 20-50 125 0.04 10 180 PT32 54x32x20 PDF
TF333-400 371 (85) 1400-2400 6.6 200 200-2500 1600 50-63 1250.05 10 180
100
T.B3
PT31
54x32x20
47x27x15
PDF
500 A
TF333-500 500 (95) 300-1400 7.5 280 500-1000 500 32 125 0.035 10 100 PT31 47x27x15 PDF

Fast Thyristors TF143...TF943 (400A – 630A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
400 A
TF143-400 400 (88) 1400-2200 8.0 320 200-1000 2000 25-50 125 0.034 15 240 PT42 60x38x20 PDF
TF243-400 400 (94) 1000-1500 9.5 450 200-2500 2000 10-20 125 0.03 15 180 PT41 57x35x14 PDF
TF943-400 400 (85) 3000-3600 7.5 600 200-1000 2000 50-63 125 0.034 15 240 T.C2 60x38x20 PDF
500 A
TF143-500 500 (85) 1400-2200 9.0 400 200-1000 2000 32-63 125 0.034 15 240 PT42 60x38x20 PDF
TF243-500 500 (91) 1000-1500 11.0 600 200-2500 2000 12.5-25 125 0.03 15 180 PT41 57x35x14 PDF
TF343-500 550 (85) 500-1100 9.0 800 500-1000 500 25 125 0.028 15 180 PT41 57x35x14 PDF
630 A
TF143-630 630 (80) 1400-2200 10.0 500 200-1000 2000 32-63 125 0.034 15 240 PT42 60x38x20 PDF
TF243-630 630 (84) 1000-1500 11.5 660 200-2500 200 16-32 125 0.03 15 180 PT41 57x35x14 PDF
TF343-630 630 (90) 400-1400 10.5 820 500-1000 500 32 125 0.028 15 180 PT41 57x35x14 PDF

Fast Thyristors TF153...TF953 (630A – 1000A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
630 A
TF153-630 630 (85) 1400-2200 16.0 1200 200-1000 2000 20-40 125 0.021 26 550 PT53 75x51x26 PDF
TF253-630 630 (85) 800-1600 6.0 1600 200-1000 800 25-50 125 0.021 26 550 PT53 75x51x26 PDF
TF453-630 630 (94) 1400-2200 20.0 2000 200-2500 2000 20-40 125 0.021 26 550 T.D2 75x51x26 PDF
TF953-630 630 (90) 3000-3600 17.0 2400 200-2500 2000 50-63 125 0.021 26 550 T.D2 75x51x26 PDF
800 A
TF153-800 800 (85) 1400-2200 17.0 1445 200-1000 2000 20-50 125 0.021 26 550 PT53 75x51x26 PDF
TF253-800 800 (85) 800-1600 8.0 1900 200-1000 800 25-50 125 0.021 26 550 PT53 75x51x26 PDF
TF453-800 800 (86) 1400-2200 21.0 2200 200-2500 2000 20-40 125 0.021 26 550 T.D2 75x51x26 PDF
TF553-800 800 (85) 1400-2400 15.0 2630 1000 630 25-63 125 0.021 26 550 PT53-1 75x51x26 PDF
1000 A
TF153-1000 1000 (75) 1400-2200 18.0 1620 200-1000 2000 20-50 125 0.021 26 550 PT53 75x51x26 PDF
TF253-1000 1000 (85) 800-1400 10.0 2100 200-1000 800 25-50 125 0.021 26 550 PT53 75x51x26 PDF
TF453-1000 1000 (79) 1400-2200 22.0 2400 200-2500 2000 20-40 125 0.021 26 550 T.D2 75x51x26 PDF

Fast Thyristors TF173, TF273 (1600A, 2000A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
1600 A
TF173-1600 1600 (95) 1600-2800 37.0 6800 200-1000 2500 50-63 125 0.008 45 1200 PT73 112x75x26 PDF
TF173-2000 2000 (90) 2000-2500 40.0 8000 200-1000 2500 40-63 125 0.008 45 1200 PT73 112x75x26 PDF
2000 A
TF273-2000 2000 (76) 1400-2400 40.0 9300 500-1000 1000 50 125 0.011 45 1200 PT73 112x75x26 PDF

Part Numbering Guide for Fast Thyristors:

TF 953 630 32 9 5 3
TF Fast Thyristor, brand AS ENERGITM
953 Thyristor type (disc type).
630 Average current in open state IT(AV), Amp.
32 Voltage class VRRM / 100  (Nominal voltage – 3200 V).
9 Parameter of the critical rate of rise of off-state voltage (dVD/dt)crit:
Alpha-numeric coding 0 P3 E3 A3 P2 K2 Е2 A2 T1 P1 M1
Digital coding 0 1 2 3 4 5 6 7 8 9
Value, V/µs not standardized 20 50 100 200 320 500 1000 1600 2000 2500
5 Parameter of turn-off time tq:
Alpha-numeric coding 0 C3 E3 H3 K3 M3 P3 T3 X3 A4 B4 C4 E4
Digital coding 0 1 2 3 4 5 6 7 8 9
Value, µs not standardized 63 50 40 32 25 20 16 12.5 10 8 6.3 5
3 Parameter of turn-on time tgt:
Alpha-numeric coding 0 T3 A4 B4 C4 H4 K4 M4 P4 T4 X4 A5 C5
Digital coding 0 1 2 3 4 5 6 7 8
Value, µs not standardized 16 10 8 6.3 4 3.2 2.5 2.0 1.6 1.25 1.0 0.63

Technical Passport for Fast Thyristors (sample):

When supplying thyristors, if necessary, we provide technical passport and certificate of conformity.

  • Technical Passport
  • Technical Passport
  • Technical Passport

High Power Semiconductors AS ENERGITM

Our company is engaged in the manufacturer and sale of wide range of power semiconductors (power thyristors, modules, rectifier diodes, rotor and welding diodes, triacs etc.) currents up to 15000A and voltages to 9000V, and air and water heatsinks to them. You can buy semiconductors in any volumes, and when ordering large lots, the price will be lower.
We have earned the trust of customers and supply products all over the world.

To purchase High Power Thyristors, Diodes, Modules send an email request to:

[email protected]

And we will provide you a commercial offer for delivery.


Photo of Fast (Tablet) Thyristors:

  • Fast Thyristor
  • Fast Thyristor
  • Fast Thyristor
  • Fast Thyristor
  • Fast Thyristor
  • Fast Thyristor

Installation recommendations for fast thyristors:

Assembling disc fast thyristor with a heatsink

The reliability of heat transfer and electrical contact between the mating surfaces of the thyristor and the cooler over the entire temperature range is ensured by appropriate torque (clamping force).

Before assembly you should perform visual inspection (1) contact surfaces for mechanical damages and wipe (2), soaked with alcohol (toluene, gasoline, acetone).

After inspection, fix the current contacts (leads), install a pin to fix the alignment of the structure.

To improve the parameters of heat transfer it is recommended to lubricate (3) a thin layer of silicone thermal conductive paste before the assembly, which is not a mandatory condition for installation.

Install the thyristor (3), the second part of the cooler, the fiberglass insulator and the thrust washer.

To thread the traverse (4) and evenly tighten the nuts. Make sure no misalignment and evenness of the contact surfaces.

When the parts are sufficiently clamped but moveable, we recommend placing the cooler on a flat surface and checking the tolerance for parallelism of the overall adjacent plane of the surfaces (5).

Clamp each nut in turn (about a quarter turn) to the stop (6). The amount of deflection of the traverse determines whether the achieved clamping force corresponds to the required one.

After installation, the fasteners (nuts and washers) must be additionally secured against corrosion.


Tips and recommendations for power thyristors:

The power thyristors should not be operated for long periods of time at their limit load for all parameters. In this case, the safety factor is determined by the required degree of reliability of the device.

Replace a failed power thyristor with a thyristor that matches the parameters of the one being replaced.

Supercooling must be provided when operating in an environment with an elevated ambient temperature.

Periodic cleaning of power thyristors and coolers to remove dust and contaminants is recommended to ensure proper heat dissipation.

Inductive current dividers (often twisted toroidal wire) should be used to equalize currents between power thyristors connected in parallel. The most popular connection methods are closed circuit, common coil circuit, or power thyristor. The efficiency of current dividers in this case is determined by the cross section of the magnetic wire.

Prevention of voltage unbalance when power thyristors are connected in series is achieved by using shunt resistors connected in parallel with each thyristor. Voltage equalization in transient conditions is provided by connecting capacitors in parallel to each thyristor.

Device under voltage

It is strictly forbidden to touch power thyristors under high voltage during operation.

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