A leading manufacturer of power modules and systems primarily in the medium output range (approx. 2 kW up to 10 MW). Semikron specialises in high power discrete and module semiconductors, including transistors, diodes, thyristors, IGBTs, MOSFETs, thyristor/diode modules and pulse transformers.

Semikron is a family owned business founded in 1951, headquartered in Nuremberg, Germany. Today the company has a staff of approx. 3,000 people in 24 subsidiaries worldwide.

Semikron Danfoss is a leading manufacturer of semiconductor components, including power modules and systems. Based in Germany, Semikron Danfoss specialises in discrete semiconductors, transistors, diodes, thyristors, IGBTs, MOSFETs and thyristor diode modules. Semikron’s state-of-the-art semiconductor range enables customers to develop smaller, more energy efficient power electronic systems, reducing global energy demand.

Typical applications include power supplies, renewable energies (wind and solar power) and electric vehicles (private cars, vans, buses, lorries, forklift trucks, and more).

Semikron Semiconductors

At the heart of modern energy efficient motor drives and industrial automation systems.

IGBT Modules

Semikron Danfoss offers IGBT (Insulated-gate bipolar transistor) modules in: SEMITRANS, SEMiX, SKiM, MiniSKiiP and SEMITOP packages in different topologies, current and volatge ratings. Starting from 4A to 1400A in voltage classes from 600V to 1700V. Semikron’s IGBT Modules are used in a large range of applications offering key technologies such as: sintering, spring or pressfit contacts for easy and fast assembly. Different topologies like CIB (converter inverter brake), halfbridge, H-bridge, 6-pack and 3-level are available in order to cover almost all application fields. The lastest IGBT chip and diode technologies offer optimised switching performance up to Tj max = 175°C.

SEMIX – Half bridge 6-pack chopper: 600V, 1200V, 1700V, 75A – 600A
Semitrans – Half bridge 6-pack chopper single switch: 600V, 1200V, 1700V, 35A – 900A
SKIM – 6-pack: 600V, 1200V, 1700V, 300A – 900A
MiniSKiiP – 6-pack: 600V, 1200V, 8A – 150A


IGBT Drivers

Semikron Danfoss offers two different types of IGBT driver families for any application. Driver cores from the SKHI and SKYPER family can be optimised using adapter boards for each module type. Drivers such as SKYPER prime offer a fully qualified plug and play solution, saving customers time and costs in application.



Semikron Danfoss offers discrete diodes in three major packaging styles: axial epoxy diodes for PCB mounting, stud screw fit diodes that are convenient for applications such as welding and rotating rectifiers in brushless generators due to their robustness and simple mounting, besides the capsule (disc) for high power applications.

Axial Screw Diodes – 4800V – 8000V, 135A – 270A
Capsule Diodes –  200V – 600V, 6000A

Stud Screw Fit Diodes – 200V – 1600V, 37A – 4500A
Leaded Diodes –  200V – 1600V, 60A – 190A


Diode & Thyristor Modules

Semikron Danfoss’ diode and thyristor modules are available in various packages: SEMIPACK, SEMiSTART, SEMIPOINT and SEMITOP. Different contact technologies are available, including: soldered contact, bonded contact or pressure contact modules. The Diode and Thyristor Modules are available in a variety of dual and single topologies for almost all phase control or rectifier applications. The diode and thyristor modules are equipped with Semikron Danfoss chips and with voltages up to 2200V, the optimal solution for each application can be found.

Semikpack 6 – 1400V – 2200V, 740A – 1200A
Semipack 5 – 800V – 2600V, 460A – 700A
Semipack 3,4 – 800V – 2200V, 210A 600A


Integrated Power Modules (IPM)

Semikron’s SKiiP (Semikron Danfoss integrated intelligent power) Modules combine IGBT modules, gate drive and cooling technology in one set-up and all components are perfectly matched. Final testing at the end of production, including a one hour burn-in test which ensures the highest reliability in the application.The SKiiPs are available in two product lines, SKiiP3 and SKiiP4. SKiiP3 operates safely and reliably with applications in a current range from 500A to 2400A both in 1200V and 1700V technology. SKiiP4 provides an incresed level of reliability with an extended junction temperature of up to a maximum of 175°C and an extended current rating. The current ranges from 1800A to 3600A, both in the 1200V and 1700V volatge classes. The elevated junction temperatures for the SKiiP4 became reliable with the introduction of Semikron’s sintered technology.

MiniSKiiP IPM – 600V – 1200V
SKiiP 4 – 1200V – 1700V Half bridge, 1800A – 3600A
SkiiP 3 – 1200V – 1700V, 1000A – 2400A


MOSFET Modules

Semikron Danfoss manufactures MOSFET (Metal Oxide Semiconductor Field Effect Transistor) modules in: single switch, half bridge, H-bridge and 6 Pack configuration in SEMITOP and SEMITRANS packages. The MOSFET modules are available in the volateg range of 55V – 600V and current ratings of 40A – 290A which are especially designed for high-speed switching offering low switching losses.

SemiTrans – 100 V – 200 V 130 A – 200 A
Semtop – 55 V – 100 V 80 A – 290 A



Semikron’s discrete thyristors are available as stud screw fit types, they are ideal for applications that require robustness and simple mounting along with capsule (disc) types for high power applications. This product range has phase control types for current ratings up to 1200A, with blocking and reverse voltages up to 1800V. Typical applications include: resistance heating, static switches, battery chargers and welding equipment.

Capsule Thyristor – 400V – 1800V, 1200V – 1800V, 340A – 1200A

Stud Screw Fit Thyristor – 400V – 1600V, 400V – 1800V, 600V – 1200V, 10A – 300A


Bridge Rectifiers

Semikron Danfoss offers a wide range of Bridge Rectifiers, ranging from a few amps to several hundred amps in different package types. Bridge Rectifiers are components which have every branch of a rectifier circuit in a single, compact case. Semikron Danfoss manufactures Bridge Rectifier Modules in a single phase or 3-phase topology with or without brake chopper. The Bridge Rectifier modules are available in different packages including: SEMiX, SEMITOP, SEMIPOINT and MiniSKiiP.

MiniSKiiP – 1600V – 1800V, 82A – 124A

Power Bridge – 100V – 1600V, 200V – 1600V, 400V – 1600V, 400V – 1800V, 400V – 2200V, 9A – 83A

SEMIPOINT – 200V – 1600V, 400V – 1400V, 400V – 1800V, 600V – 1400V, 800V – 1400V, 800V – 1800V, 900V – 1800V, 28A – 207A

SEMITOP – 800V – 1600V, 1200V, 1600V, 55A – 170A

SEMiX –  1200V – 1700V, 154A – 494A


Converter Inverter Brake (CIB)

MiniSKiiP – 600V – 1200V, 4A – 100A

Semitop – 600V – 1200V, 10A – 200A


Silicon Carbide Semiconductors

Semikron’s hybrid and full silicon carbide power modules combine the benefits of proven industry standard power modules with Semikron’s packaging technologies. The low module commutation inductance allows for full speed switching of SiC MOSFETs and the higher switching speeds can be converted into higher switching frequencies.

Full SiC Modules – 18-541A, 1200V

Hybrid SiC Modules – 25-600A, 1200V

Featured Products

Semikron’s specialist products, components and designs can be found in a wide range of applications around the world.

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SKN 5/16 Rectifier Diode 1600V, 5A

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SKKT 107B16E Thyristor/Diode Module 1600V, 119A

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SKM400GAL128D SPT IGBT Module 1200V, 565A

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SKPC 200-440 Thyristor Trigger Module

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SKKT 72B08E Thyristor/Diode Module 800V, 70A

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SKKT 20B12E Thyristor/Diode Module 1200V, 18A

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SKKT 106B16E Thyristor/Diode Module 1600V, 106A

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SKR 46/16 UNF Rectifier Diode 1600V, 45A

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SKKH 57/08E Thyristor/Diode Module 800V, 55A

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SKN 240/12 Rectifier Diode 1200V, 240A

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SKN 96/12 UNF Rectifier Diode 1200V, 95A

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SKKT 106B08E Thyristor/Diode Module 800V, 106A

Technical Resources

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Find in-depth technical product information by downloading Semikron's datasheets. All of our datasheets can be found on individual product pages.


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