Thyristor Module Semikron SKKT 250/18E and Replacement

Semikron Product Type SKKT 250/18E
Average forward current, ITAV/IFAV (Tcase) 250A (85ºC)
Voltage, VRRM/VDRM 1800V
Circuit Circuit
Package, Dimensions L×B×H SEMIPACK 3
115x50x52
Datasheet Datasheet
Replacement AS ENERGITM AMKT 250-18E
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Module Semikron SKKT 250/18E is a dual thyristor SCR module in a standard housing SEMIPACK 3.

Thyristor module AMKT 250-18E AS ENERGITM is a replacement, analogue, alternative and equivalent semiconductor device for SCR module SKKT 250/18E Semikron.

The thyristor modules are characterized by high electrical and thermal cycling capability, meaning high reliability and long lifetime in intensive operation modes. The thyristor modules are housed in a industry-standard housing making it easy to integrate the device into existing equipment.

The main (power) terminals are on the top of the case and are marked as 123 (common anode-cathode, cathode, anode). The control terminals are marked as K1, G1, K2, G2.

Dual thyristor modules are used in various power equipment - power and control units, power regulators, AC regulators, DC motors control, AC motor soft starters, converters, controllers of blast furnaces or chemical processes, welding equipment, and as rectifiers for AC converters.

Our modules are offered in several dual and single device topologies for almost all phase control or rectifier applications.

Our company provides a quality guarantee for thyristor / diode modules of 2 years from the date of purchase. When supplying thyristor / diode modules, if necessary, we provide technical passport and certificate of conformity.

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The final price for thyristor / diode modules depends on the class, quantity, delivery terms, manufacturer, country of origin and form of payment.

General specifications of Thyristor Module SKKT 250/18E and Replacements:

Thyristor module specifications SKKT 250/18E
Maximum allowable average forward current (Case temperature) ITAV/IFAV (Tcase) 250 A (85ºC)
Repetitive pulsed reverse voltage; Repetitive pulsed closed state voltage VRRM/VDRM 1800 V
Surge on-state current ITSM/IFSM 8000 A
Safety factor I2t 405 kA2·s
Threshold voltage VT(TO) 0.93 V
On-state slope resistance rT 0.45 mΩ
Turn-off time max tq 150 µs
Junction temperature Tvj max 130 ºC
Thermal resistance, junction to case Rth(j-c) 0.15 ºC/W
Design (switches) - dual component
Type (circuit diagram) - thyristor-thyristor
Weight W 600 g
Package, Dimensions, mm L×B×H SEMIPACK 3
115x50x52
Replacement AS ENERGITM type AMKT 250-18E
Datasheet PDF Datasheet

Part numbering guide for thyristor–thyristor modules AMKT:

A M KT 250 18 E
A brand AS ENERGITM
M Semiconductor Type: Module.
KT Topology of internal connection: Thyristor–Thyristor.
250 Rated current (ITAV), A.
18 Voltage class (VRRM/100).
E dv/dt class:
D: 500 V/µs
E: 1000 V/µs
G: 2000 V/µs

Possible alternatives, replacements, analogue, equivalent products:

List of series of power thyristor modules with similar parameters and housing sizes.

Series ITAV/IFAV (Tcase) VRRM/VDRM Topology Dimensions, mm Package Datasheet
SKKT 250/18E 250 A (85ºC) 1800 V thyristor-thyristor 115x50x52 3 Datasheet
AMKT 250-18E 250 A (85ºC) 1800 V thyristor-thyristor 115x50x52 3 Datasheet
MTT-250 250 A (83ºC) 400-1600 V thyristor-thyristor 115x53x51 3 Datasheet
MT3-250-C1 250 A (91ºC) 2000-2400 V thyristor-thyristor 115x50x52 3 Datasheet
MT3-250-A2 250 A (87ºC) 3800-4400 V thyristor-thyristor 150x60x52 5 Datasheet
MT3-260-A2 260 A (85ºC) 3800-4400 V thyristor-thyristor 150x60x52 5 Datasheet

Dimensions of thyristor modules SKKT 250/18E:

dimensions

SEMIPACK 3


Circuit diagram of thyristor modules:

circuit

1 (АК), 2 (К), 3 (А) – main (power) terminals.

K1, G1, K2, G2 (4, 5, 6, 7) – control terminals.


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 Modules, Diodes, Thyristors, 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.

GİZEM GÖZÜN 26.01.2021 at 13:04
4
I'm Gizem, I'm a chemical engineer. I'm interested in making ceramic stuffs as a hobby. Would you please give some explanation about my questions below;
1) If I only mix SiO2 and Fe2O3 (3:1), can i get a suitable product without using other components?
2) Can i use water as fastener? or would you suggest me another fastener?
3) At which temperature should i mix them?
Thank you for your interest, Kind Regards
26.01.2021 at 14:43
2
Hello, Gizem. The mass of ceramic is produced by grinding and mixing with water of different components: clay, feldspar, sand, kaolin. The proportions of these materials are different percentages, depending on what and with what characteristics you need to get a ceramic mass.
Each manufacturer of ceramic mass has its own recipes and its own raw materials, which are available in its region.
There are also books on ceramics that specify the chemical composition and approximate recipes for ceramic masses.
Roman 27.06.2022 at 00:03
0
Is It need to apply vaselin or thermal past at Thyristor surfaces then attach to radiator/current leading parts?
Maksim 27.06.2022 at 10:39
0
When assembling thyristors, diodes with heat sinks, it is recommended to lubricate the contact surfaces with a thin layer of heat conducting paste to improve the heat transfer parameters. But this is not a prerequisite for assembly.

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