Fast Switching Thyristor 630 amp, TFI243-630 (2000 – 2200V)

Average forward current, ITAV 630A
Voltage, VDRM/VRRM 2000–2200V
Voltage code, VRRM / 100 20 – 22
TFI243-630 on request
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Package
Dimensions ØD×Ød×H
PT43
60x35x26 mm
Weight 280 g
Datasheet Datasheet

Fast Switching Thyristor TFI243-630 AS ENERGITM in disc design is a press pack type fast switching (pulse) semiconductor device. This fast pulse power thyristor designed for converting and control DC and AC currents up to 630A with frequency up to 10kHz in circuits with voltages up to 2000V – 2200V (voltage class from 20 to 22). Thyristor dimensions ØDxØdxH – 60x35x26 mm (outer case diameter X contact surface diameter X case height), weight – 280 g.

Fast switching thyristors are devices with reduced tq, trr, Qrr values and with a higher value (diT/dt)cr (up to 2500 A/µs) designed to operate at higher frequencies modes (up to 10kHz). 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 anode and cathode of the thyristor (polarity) are determined by the symbol on the case. Fast switching thyristors are in a press pack disc (capsule, tablet) housing. This fast thyristor can be an alternative product, replacement, analog, equivalent for other types of fast switching thyristors 550A, 580A, 590A, 600A, 630 amp in a disk package.

For cooling during the operation of power thyristors they are mounted with coolers (heat sinks). Depending on the amount of heat generated and the working conditions of the semiconductors, either natural air flow cooling or forced cooling can be used.

When assembling, the necessary clamping force Fm specific for each type of thyristor case (indicated in the parameter table) must be provided.

Specifications and parameters, datasheets PDF, sample technical passport, dimensions, outline drawings, case diagrams thyristors, recommended coolers are listed below.

Our company provides a quality guarantee for power fast thyristors of 2 years from the date of purchase. When supplying pulse thyristors, if necessary, we provide technical passport, certificate of conformity.

Fast switching thyristor ratings: TFI243-630-20 (630A 2000V), TFI243-630-22 (630A 2200V).

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


General specifications of fast switching thyristors TFI243-630:

Fast switching thyristor specifications TFI243-630
Maximum allowable average forward current (Case temperature) IT(AV) (Tcase) 630 A (80ºC)
820 A (55ºC)
Repetitive peak off-state voltage; Repetitive peak reverse voltage VDRM/VRRM 2000-2200 V
RMS on-state current ITRMS 989 A
Surge on-state current ITSM 10 kA
Safety factor I2t 500 kA2·s
Peak on-state voltage, max VTM 2.40 V
Peak on-state current ITM 1978 A
On-state threshold voltage, max VT(TO) 1.20 V
On-state slope resistance, max rT 0.65 mΩ
Turn-off time, max tq 32 µs
Repetitive peak off-state and Repetitive peak reverse currents, max IDRM/IRRM 100 mA
Critical rate of rise of off-state voltage, min (dVD/dt)cr 200-1000 V/µs
Gate trigger direct voltage, max VGT 2.5 V
Gate trigger direct current, max IGT 300 mA
Critical rate of rise of on-state current (diT/dt)cr 2000 A/µs
Temperature of p-n junction, max Tvj max 125 ºC
Thermal resistance, junction to case, max Rth(j-c) 0.034 ºC/W
Clamping force Fm ±10% 15 kN
Weight, approx. W 280 g
Package type, Dimensions ØDxØdxH PT43
60x35x26 mm
Recommended heatsinks Heatsinks O143, O243, O343, OM103, OM104
Datasheet PDF PDF

Part Numbering Guide for Fast Switching Thyristors TFI243-630:

TFI 243 630 22 7 8 4
TFI brand AS ENERGITM Fast Switching Thyristor (Fast Impulse Thyristor)
243 Thyristor type (disc type).
630 Average current in open state IT(AV), Amp.
22 Voltage class VRRM / 100  (Nominal voltage – 2200 V).
7 Parameter of the critical rate of rise of off-state voltage (dVD/dt)cr:
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
8 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
4 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

Polarity (anode, cathode, gate) and dimensions of disc fast switching thyristor TFI243-630:

Thyristor polarity Dimensions

Fast switching thyristor TFI243-630 datasheet:

PDFDownload pdf datasheet for thyristors TFI243-630


Technical Passport for 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.

For questions regarding the acquisition of Power Thyristors, Diodes, Modules 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.


Heat sinks for disc fast power thyristors:

Heat sinks (radiators) are used for single- and double-sided cooling of power semiconductor devices in disc design.

Heat sinks of coolers are made of aluminum radiator profiles and do not require additional protective coating when used in various climatic conditions.

See for more information about coolers: "Water Heatsink SS series", "Air Heatsink SF series", and also "Air-heatsink" and "Water-heatsink".


Photo of Fast Switching Thyristor SCR:

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