Thyristor Module Semikron SKKT 42B/12E and Replacement
Module Semikron SKKT 42B/12E is a dual thyristor SCR module in a standard housing SEMIPACK 1.
Thyristor module AMKT 42B-12E AS ENERGITM is a replacement, analogue, alternative and equivalent semiconductor device for SCR module SKKT 42B/12E 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 1, 2, 3 (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.
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 42B/12E and Replacements:
|Thyristor module specifications||SKKT 42B/12E|
|Maximum allowable average forward current (Case temperature)||ITAV/IFAV (Tcase)||40 A (85ºC)|
|Repetitive pulsed reverse voltage; Repetitive pulsed closed state voltage||VRRM/VDRM||1200 V|
|Surge on-state current||ITSM/IFSM||850 A|
|Safety factor||I2t||3.6 kA2·s|
|Threshold voltage||VT(TO)||1.00 V|
|On-state slope resistance||rT||4.5 mΩ|
|Turn-off time max||tq||80 µs|
|Junction temperature||Tvj max||125 ºC|
|Thermal resistance, junction to case||Rth(j-c)||0.69 ºC/W|
|Design (switches)||-||dual component|
|Type (circuit diagram)||-||thyristor-thyristor|
|Package, Dimensions, mm||L×B×H||SEMIPACK 1
|Replacement AS ENERGITM||type||AMKT 42B-12E|
Part numbering guide for thyristor–thyristor modules AMKT:
|M||–||Semiconductor Type: Module.|
|KT||–||Topology of internal connection: Thyristor–Thyristor.|
|42||–||Rated current (ITAV), A.|
|B||–||Option of another numbering of the control pins: "6" – HK2; "7" – G2.|
|12||–||Voltage class (VRRM/100).|
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 42B/12E||40 A (85ºC)||1200 V||thyristor-thyristor||93x20x30||1|
|AMKT 42B-12E||40 A (85ºC)||1200 V||thyristor-thyristor||93x20x30||1|
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:
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.