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SKN, SKR Stud Rectifier Diode Semikron Replacement

SKN, SKR Stud Rectifier Diode Semikron Replacement

Semikron Type Stud Rectifier Diode (SKN / SKR Series)

Product Overview Our SKN/SKR series offers a direct high-performance replacement for Semikron stud rectifier diodes. Featuring a rugged hermetic metal case and available in both standard (Cathode to Stud) and reverse (Anode to Stud) polarities, these diodes are engineered for heavy-duty rectification and exceptional thermal reliability.

Key Specifications

  • Current Range: 20A – 600A (Covering SKN/SKR 20 to 600)

  • Voltage Class: 400V – 1600V (up to 3600V for high-power models)

  • Polarity: Available in SKN (Standard) and SKR (Reverse) configurations.

Product Features

JAST Power’s Rectifier Diode Modules utilize the latest semiconductor technology and advanced packaging processes to provide high-performance, reliable power electronic solutions. Our JS series diode modules offer the following features:

  • Type: Stud Rectifier Diode (Standard Recovery, Fast Recovery options available)
  • Mounting: Stud Mount (Various thread sizes available, )
  • Forward Current (If): [Specify Range, e.g., 10A – 500A]
  • Repetitive Peak Reverse Voltage (VRRM): [Specify Range, e.g., 200V – 3000V]
  • High surge current capability
  • Low forward voltage drop
  • Hermetically sealed construction (for some models)
  • Operating Temperature Range: [Specify Range, e.g., -55°C to +175°C]
  • Available in both standard and reverse polarity (cathode stud / anode stud)

Technical Specifications

Parameter Symbol Range Unit
Average Forward Current IF(AV) 6 – 400 A
Repetitive Peak Reverse Voltage VRRM 100 – 1600 V
Forward Voltage Drop VFM 1.2 – 1.4 V
Peak Surge Current IFSM 175 – 8250 A
Thermal Resistance (Junction to Case) Rth(j-c) 0.15 – 2 °C/W
Junction Temperature Range Tj -40 to +175 °C
Storage Temperature Range Tstg -40 to +150 °C
Mounting Torque According to package N·m

Product Data

The following table contains detailed information about our Rectifier Diode Module series:

Product Features

JAST Power’s Rectifier Diode Modules utilize the latest semiconductor technology and advanced packaging processes to provide high-performance, reliable power electronic solutions. Our JS series diode modules offer the following features:

  • Type: Stud Rectifier Diode (Standard Recovery, Fast Recovery options available)
  • Mounting: Stud Mount (Various thread sizes available, e.g., DO-4, DO-5, DO-8, DO-9 packages)
  • High surge current capability
  • Low forward voltage drop
  • Hermetically sealed construction (for some models)
  • Operating Temperature Range: e.g., -55°C to +175°C
  • Available in both standard and reverse polarity (cathode stud / anode stud)

Technical Specifications (General)

Parameter Symbol Range Unit
Average Forward Current IF(AV) 6 – 600 A
Repetitive Peak Reverse Voltage VRRM 200 – 5000 V
Forward Voltage Drop VFM 0.8 – 1.4 V
Peak Surge Current IFSM up to 14000 A
Thermal Resistance (Junction to Case) Rth(j-c) 0.1 – 2.0 °C/W

Product Data: Rectifier Diodes SEMIKRON Replacement

The following table contains detailed information about our Rectifier Diode Module series, designed as replacements for SEMIKRON models.

Normal Polarity (SKN Series)

Series Type IF(AV) (A) VRRM (V) Package Replacement AS ENERGI™ Datasheet
SKN20 SKN 20/04 – SKN 20/16 20 400-1600 E9 ADSN20-xx Download
SKN26 SKN 26/04 – SKN 26/16 25 400-1600 E8 ADSN26-xx Download
SKN45 SKN 45/04 – SKN 45/16 45 400-1600 E12 ADSN45-xx Download
SKN46 SKN 46/04 – SKN 46/16 45 400-1600 E11 ADSN46-xx Download
SKN70 SKN 70/04 – SKN 70/16 70 400-1600 E12 ADSN70-xx Download
SKN71 SKN 71/02 – SKN 71/16 70 200-1600 E11 ADSN71-xx Download
SKN100 SKN 100/04 – SKN 100/18 100 400-1800 E13 ADSN100-xx Download
SKN130 SKN 130/04 – SKN 130/18 130 400-1800 E14 ADSN130-xx Download
SKN240 SKN 240/04 – SKN 240/18 240 400-1800 E15 ADSN240-xx Download
SKN320 SKN 320/04 – SKN 320/16 320 400-1600 E16 ADSN320-xx Download
SKN400 SKN 400/18 – SKN 400/36 400 1800-3600 E17 ADSN400-xx Download
SKN600 SKN 600/04 – SKN 600/16 600 400-1600 E16 ADSN600-xx Download

Reverse Polarity (SKR Series)

Series Type IF(AV) (A) VRRM (V) Package Replacement AS ENERGI™ Datasheet
SKR20 SKR 20/04 – SKR 20/16 20 400-1600 E9 ADSR20-xx Download
SKR26 SKR 26/04 – SKR 26/16 25 400-1600 E8 ADSR26-xx Download
SKR45 SKR 45/04 – SKR 45/16 45 400-1600 E12 ADSR45-xx Download
SKR46 SKR 46/04 – SKR 46/16 45 400-1600 E11 ADSR46-xx Download
SKR70 SKR 70/04 – SKR 70/16 70 400-1600 E12 ADSR70-xx Download
SKR71 SKR 71/02 – SKR 71/16 70 200-1600 E11 ADSR71-xx Download
SKR100 SKR 100/04 – SKR 100/18 100 400-1800 E13 ADSR100-xx Download
SKR130 SKR 130/04 – SKR 130/18 130 400-1800 E14 ADSR130-xx Download
SKR240 SKR 240/04 – SKR 240/18 240 400-1800 E15 ADSR240-xx Download
SKR320 SKR 320/04 – SKR 320/16 320 400-1600 E16 ADSR320-xx Download
SKR400 SKR 400/18 – SKR 400/36 400 1800-3600 E17 ADSR400-xx Download
SKR600 SKR 600/04 – SKR 600/16 600 400-1600 E16 ADSR600-xx Download

Note: All parameters measured under specified test conditions. Please refer to datasheets for complete specifications. “xx” in part numbers refers to the specific voltage rating.

Application Areas

  • Industrial Power Supplies
  • Motor Drives
  • Renewable Energy (Solar Inverters, Wind Turbines)
  • UPS Systems
  • Railway Transportation
  • Power Transmission (HVDC, FACTS)

Why Choose Our Diode Modules?

  • Superior Quality – Each module undergoes rigorous quality control to ensure long-term reliable operation.
  • Technical Innovation – Continuous R&D efforts to improve product performance and reliability.
  • Customized Solutions – Tailored solutions based on customer requirements.
  • Technical Support – Professional engineering team providing comprehensive technical support.
  • Global Certification – Products certified to multiple international standards to meet global market demands.
  • Competitive Pricing – High-value products to help customers reduce system costs.

Note: All parameters measured under specified test conditions. Please refer to datasheets for complete specifications.

Semikron Stud Series

Our JS Series Rectifier Diode Modules are available in various current ratings and package types to meet different application requirements:

  • Stud Series (Standard Version) – Available in current ratings from 6A to 400A with voltage rating of 100-1600V
  • SKN – Standard version with optimized performance characteristics
  • SKR – Reverse version with optimized performance characteristics

Different package options provide flexibility for various installation requirements:

  • SKD4 Package – For lower current ratings (26A), compact design
  • SKD5 Package – For medium current ratings (46A-70A), balanced size and performance
  • SKD8 Package – For higher current ratings (100A-130A), improved thermal management
  • SKD9 Package – For highest current ratings (240), superior heat dissipation
  • SKD10 Package – For highest current ratings (320A-400A), superior heat dissipation

Application Areas

Stud Rectifier Diode-Application-Areas
Stud Rectifier Diode-Application-Areas

  Industrial Power Supplies

Provide stable rectification solutions for high-reliability industrial power systems

  Motor Drives

Enable efficient energy conversion in frequency converters and motor control systems

  Renewable Energy

Apply to solar inverters and wind energy conversion systems for power conversion

  UPS Systems

Ensure high-reliability power conversion in uninterruptible power supply systems

  Railway Transportation

Provide reliable power electronic components for train traction and auxiliary power supplies

  Power Transmission

Apply in HVDC and FACTS systems to improve grid stability

 

Why Choose JAST Power’s Diode Modules?

  • Superior Quality – Each module undergoes rigorous quality control to ensure long-term reliable operation
  • Technical Innovation – Continuous R&D efforts to improve product performance and reliability
  • Customized Solutions – Tailored solutions based on customer requirements
  • Technical Support – Professional engineering team providing comprehensive technical support
  • Global Certification – Products certified to multiple international standards to meet global market demands
  • Competitive Pricing – High-value products to help customers reduce system costs
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