Fast Switching Thyristors 5STF ABB Replacement

Fast Switching Thyristor in disc design is a press pack type fast switching semiconductor device.

Features: low switching losses; short turn-off time; fast turn-on and increased di/dt capability.

Thyristors ATF AS ENERGITM are a replacement, analog, alternative semiconductor devices for Fast Switching Thyristors 5STF ABB Power Grids Switzerland, Hitachi Energy.

"Air-cooled heatsinks O series for disc devices", "Air heatsink SF series", "Water heatsink SS series" for thyristor cooling are also available to order.

Part numbering guide for fast switching thyristors

youtubeVideo: Reviews of high power disc thyristors

icon AS ENERGITM Semiconductors Manufacturing Reference

Thyristors regulate and convert DC and AC currents to 2800A in circuits with voltages to 3000V (depends on the type).

The thyristor has an industry standard ceramic housing making it easy to integrate the device into existing equipment. This thyristor has a disc housing with pressure contacts. The polarity of the thyristor is determined by the icon on the case. The technical specifications, part numbering guide, datashets for thyristors are listed below.

Thyristors AS ENERGITM 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 100 to 9000 V and amperages from 100 to 15000 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 technical passport and certificate of conformity.

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

General specifications of Fast Switching Thyristor 5STF ABB and Replacements

Type IT(AV)M
ITSM VT0 rT tq Tvj max Rth(j-c) Rth(c-h) Fm
Package Replacement
Data sheet
A V kA V mΩ µs ºC K/kW K/kW kN PDF
5STF 05D
5STF 05D2425 517 2400 7.0 2.55 0.43 25, 32 125 32.0 10.0 10 D ATF 500-24-D-25
5STF 05D2625 2600 ATF 500-26-D-25
5STF 05T
5STF 05T2425 517 2400 7.0 2.55 0.43 25, 32 125 32.0 10.0 10 T1 ATF 500-24-T-25
5STF 05T2625 2600 ATF 500-26-T-25
5STF 06D
5STF 06D1408 568 1400 11.0 2.31 0.36 8, 10 125 32.0 10.0 10 D ATF 600-14-D-08
5STF 06D1620 557 1800 8.0 2.34 0.38 20, 25 125 32.0 10.0 10 D ATF 600-16-D-20
5STF 06D2020 2000 ATF 600-20-D-20
5STF 06D2440 617 2400 8.0 2.04 0.36 40, 50 125 32.0 10.0 10 D ATF 600-24-D-40
5STF 06D2640 2600 ATF 600-26-D-40
5STF 06T
5STF 06T1408 568 1400 11.0 2.31 0.36 8, 10 125 32.0 10.0 10 T1 ATF 600-14-T-08
5STF 06T1820 557 1800 8.0 2.34 0.38 20, 25 125 32.0 10.0 10 T1 ATF 600-18-T-20
5STF 06T2020 2000 ATF 600-20-T-20
5STF 06T2440 617 2400 8.0 2.04 0.36 40, 50 125 32.0 10.0 10 T1 ATF 600-24-T-40
5STF 06T2640 2600 ATF 600-26-T-40
5STF 07D
5STF 07D1213 710 1200 12.0 1.65 0.34 12.5, 14, 16 125 32.0 10.0 10 D ATF 700-12-D-13
5STF 07D1413 1400 ATF 700-14-D-13
5STF 07D1414 1400 ATF 700-14-D-14
5STF 07D2032 679 2000 9.0 1.84 0.30 32, 40 125 32.0 10.0 10 D ATF 700-20-D-32
5STF 07T
5STF 07T1213 710 1200 12.0 1.65 0.34 12.5, 14, 16 125 32.0 10.0 10 T1 ATF 700-12-T-13
5STF 07T1413 1400 ATF 700-14-T-13
5STF 07T1414 1400 ATF 700-14-T-14
5STF 07T1832 679 1800 9.0 1.84 0.30 32, 40 125 32.0 10.0 10 T1 ATF 700-18-T-32
5STF 07T2032 2000 ATF 700-20-T-32
5STF 08F
5STF 08F1660 800 1600 15.0 1.25 0.43 60 125 16.0 4.0 22 F ATF 800-16-F-60
5STF 08F1860 1800 ATF 800-18-F-60
5STF 08F2060 2000 ATF 800-20-F-60
5STF 09F
5STF 09F1420 885 1400 16.0 1.10 0.36 20 125 16.0 4.0 22 F ATF 900-14-F-20
5STF 09F1620 1600 ATF 900-16-F-20
5STF 09D
5STF 09D1220 847 1200 13.0 1.23 0.31 20, 25 125 32.0 10.0 10 D ATF 900-12-D-20
5STF 09D1420 1400 ATF 900-14-D-20
5STF 09T
5STF 09T1225 847 1200 13.0 1.23 0.31 20, 25 125 32.0 10.0 10 T1 ATF 900-12-T-25
5STF 09T1420 1400 ATF 900-14-T-20
5STF 10F
5STF 10F2810 1003 2800 13.0 2.56 0.24 80, 100 125 16.0 4.0 22 F ATF 1000-28-F-10
5STF 10F3080 3000 ATF 1000-30-F-80
5STF 11F
5STF 11F2810 1112 2800 14.0 2.14 0.25 100, 125 125 16.0 4.0 22 F ATF 1100-28-F-10
5STF 11F3010 3000 ATF 1100-30-F-10
5STF 12F
5STF 12F1832 1202 1800 17.0 1.99 0.21 25, 32, 40, 50 125 16.0 4.0 22 F ATF 1200-18-F-32
5STF 12F2025 2000 ATF 1200-20-F-25
5STF 12F2040 2000 ATF 1200-20-F-40
5STF 13F
5STF 13F1020 1252 1000 21.0 1.77 0.24 20, 25 125 16.0 4.0 22 F ATF 1300-10-F-20
5STF 13F1220 1200 ATF 1300-12-F-20
5STF 14F
5STF 14F1863 1440 1800 17.0 1.60 0.17 63, 70 125 16.0 4.0 22 F ATF 1400-18-F-63
5STF 14F2063 2000 ATF 1400-20-F-63
5STF 15F
5STF 15F1032 1532 1000 21.0 1.28 0.20 32, 40 125 16.0 4.0 22 F ATF 1500-10-F-32
5STF 15F1232 1200 ATF 1500-12-F-32
5STF 15F1840 1489 1800 17.0 1.60 0.14 40, 50 125 16.0 4.0 22 F ATF 1500-18-F-40
5STF 15F2040 2000 ATF 1500-20-F-40
5STF 16F
5STF 16F1213 1526 1200 21.0 1.62 0.12 12.5, 16 125 16.0 4.0 22 F ATF 1600-12-F-13
5STF 16F1413 1400 ATF 1600-14-F-13
5STF 17F
5STF 17F1220 1693 1200 21.0 1.40 0.11 20, 25 125 16.0 4.0 22 F ATF 1700-12-F-20
5STF 17F1420 1400 ATF 1700-14-F-20
5STF 18F
5STF 18F1010 1779 1000 22.0 1.37 0.09 10, 12.5 125 16.0 4.0 22 F ATF 1800-10-F-10
5STF 18F1210 1200 ATF 1800-12-F-10
5STF 23H
5STF 23H2040 2322 2000 42.0 1.52 0.11 40, 60 125 10.0 3.0 50 H ATF 2300-20-H-40
5STF 28H
5STF 28H2060 2667 2000 46.5 1.20 0.10 60, 80 125 10.0 3.0 50 H ATF 2800-20-H-60

Drawings and housings dimensions for Fast Switching Thyristor:

Package type Dimensions ØDxØdxH Weight
T1 58.5x34x20 mm 0.20 kg
T2 74.5x47x21.7 mm 0.40 kg
T3 101.5x63x16.5 mm 0.62 kg
T4 52x29.5x14.5 mm 0.11 kg
D 58.5x34x26 mm 0.26 kg
F 75x47x26 mm 0.48 kg
G 75x47x35 mm 0.65 kg
H 102x63x26 mm 0.90 kg
K 102x63x35 mm 1.15 kg
L 120x78x26 mm 1.45 kg
M 120x78x35 mm 1.85 kg
N 150x100x35 mm 2.90 kg
Q 150x100x26 mm 2.10 kg
U 172x110x35 mm 3.60 kg
X 60x34x35 mm 0.40 kg
Y 192x138x35 mm 5.14 kg

Part Numbering Guide for Fast Switching Thyristors:

A TF 1000 30 F 80
TF Product group: Fast Switching Thyristor.
1000 Average on-state current IT(AV), Amp.
30 Voltage class VRRM / 100.
F Housing (package) type.
80 Turn-off time tq:
for devices with tq < 100μs = tq,
for devices with tq > 100μs = tq/10.

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, avalanche, rotor and welding diodes, triacs etc.) currents up to 15000A and voltages to 9000V, and air and water heatsinks to them.
You can buy semiconductor devices 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.

Photo Gallery

The photo gallery shows many different semiconductor devices, semiconductor chips and SCRs produced by AS ENERGITM, examples of test reports.

Photo of High Power Thyristors:

Installation recommendations for power thyristors:

Assembling disc 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.

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

icon Why choose AS ENERGITM

  • Own production facilities, including semiconductor silicon chips production
  • European brand - 100% quality, favorable price, short production terms
  • Over 20 years of experience in the semiconductor industry
  • Clients from more than 50 countries trust us
  • 20000 items in the product line for currents from 10A to 15000A, voltages from 100V to 9000V
  • We produce analogues of other manufacturers' products
  • Guaranteed certified quality, warranty period of operation - 2 years


Quality Warranty

Our products are certified and correspond to international standards.
Our company provides a quality guarantee for products of 2 years.
We provide certificates of conformity, reliability reports, data sheets and technical passports at the request of the customer.


Each product is tested for the main parameters, and Test reports of the parameters for each product are provided.

Test Report

Geography of partnership

AS ENERGITM company manufactures and supplies power semiconductors to more than 50 countries around the world.


Logistics and Delivery

We deliver our products all over the world with the services of logistics companies: DHL, TNT, UPS, EMS, Fedex, Aramex.
Products can be delivered by any means of transport: air, sea, rail and road.


AS ENERGITM Semiconductors Manufacturing

Our products range includes rectifier diodes, phase control thyristors in disc and stud design, avalanche diodes and thyristors, fast switching, high frequency thyristors, fast recovery, welding and rotor diodes, triacs, bridge rectifiers, power modules (thyristor, diode, thyristor-diode, IGBT), and air and water heatsinks to them.

Power diodes and thyristors are produced for currents from 10A to 15000A, voltage range from 100V to 9000V.
Power diode and thyristor modules are produced from 25A and up to 1250A, voltage range 400V - 4400V.
The range of power semiconductors also includes equivalent, replacement, analogue and alternative semiconductor devices of global manufacturers.

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