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SKT Stud Thyristor Semikron Replacement

SKT Stud Thyristor 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 semikron type thyristor 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)

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)

Key Specifications of SKT Series Phase Control Thyristors

Parameter Name Symbol Range (Min – Max) Unit
Average On-state Current IT(AV)M 10 – 300 A
Repetitive Peak Off-state & Reverse Voltage VDRM / VRRM 400 – 1800 V
Surge On-state Current ITSM Up to 10,000 A
Threshold Voltage VT(TO) 0.9 – 1.2 V
Thermal Resistance (Junction to Case) Rth(j-c) 0.01 – 1.2 K/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.

Stud Type Phase Control Thyristors: Specification & Cross-Reference

Table 1: Technical Specifications and Replacement Guide for SKT Series Thyristors
Series Original Type
(Semikron)
IT(AV)M
(A)
VRRM / VDRM
(V)
ITSM
(A)
I²t
(A²s)
VT(TO)
(V)
rT
(mΩ)
Rth(j-c)
(K/W)
W
(g)
Package / Outline Replacement
AS ENERGI™
SKT 10 SKT 10/06D 10 600-1200 210 220 1.0 18.0 1.2 7 B1 (M5) ATS10-06D
SKT 10/08D ATS10-08D
SKT 10/12E ATS10-12E
SKT 16 SKT 16/04D 16 400-1800 330 550 1.0 20.0 0.8 13 B2 (M6) ATS16-04D
SKT 16/06D ATS16-06D
SKT 16/08D ATS16-08D
SKT 16/12E ATS16-12E
SKT 16/14E ATS16-14E
SKT 16/16E ATS16-16E
SKT 16/18E ATS16-18E
SKT 24 SKT 24/04D 24 400-1800 380 720 1.0 10.0 0.8 13 B2 (M6) ATS24-04D
SKT 24/08D ATS24-08D
SKT 24/12E ATS24-12E
SKT 24/14E ATS24-14E
SKT 24/16E ATS24-16E
SKT 24/18E ATS24-18E
SKT 40 SKT 40/04D 40 400-1800 600 1800 1.0 9.0 0.6 22 B3 (M8) ATS40-04D
SKT 40/06D ATS40-06D
SKT 40/08D ATS40-08D
SKT 40/12E ATS40-12E
SKT 40/14E ATS40-14E
SKT 40/16E ATS40-16E
SKT 40/18E ATS40-18E
SKT 50 SKT 50/06D 50 600-1800 900 4000 1.1 5.0 0.57 22 B3 (M8) ATS50-06D
SKT 50/08D ATS50-08D
SKT 50/12E ATS50-12E
SKT 50/14E ATS50-14E
SKT 50/16E ATS50-16E
SKT 50/18E ATS50-18E
SKT 55 SKT 55/04D 55 400-1800 1100 6000 0.9 4.0 0.4 100 B5 (M12) ATS55-04D
SKT 55/06D ATS55-06D
SKT 55/08D ATS55-08D
SKT 55/12E ATS55-12E
SKT 55/14E ATS55-14E
SKT 55/16E ATS55-16E
SKT 55/18E ATS55-18E
SKT 80 SKT 80/06D 80 600-1800 1500 11000 1.2 4.0 0.25 100 B5 (M12) ATS80-06D
SKT 80/08D ATS80-08D
SKT 80/12E ATS80-12E
SKT 80/14E ATS80-14E
SKT 80/16E ATS80-16E
SKT 80/18E ATS80-18E
SKT 100 SKT 100/04D 100 400-1800 1750 15300 1.0 2.4 0.25 100 B5 (M12) ATS100-04D
SKT 100/08D ATS100-08D
SKT 100/12E ATS100-12E
SKT 100/14E ATS100-14E
SKT 100/16E ATS100-16E
SKT 100/18E ATS100-18E
SKT 130 SKT 130/04D 130 400-1600 3000 45000 1.2 2.2 0.16 250 B6 (M16) ATS130-04D
SKT 130/06D ATS130-06D
SKT 130/08D ATS130-08D
SKT 130/12E ATS130-12E
SKT 130/14E ATS130-14E
SKT 130/16E ATS130-16E
SKT 160 SKT 160/04D 160 400-1600 3750 70000 1.0 1.5 0.16 250 B6 (M16) ATS160-04D
SKT 160/06D ATS160-06D
SKT 160/08D ATS160-08D
SKT 160/12E ATS160-12E
SKT 160/14E ATS160-14E
SKT 160/16E ATS160-16E
SKT 250 SKT 250/04D 250 400-1600 6000 180000 1.0 0.7 0.11 490 B7 (M24) ATS250-04D
SKT 250/08D ATS250-08D
SKT 250/12E ATS250-12E
SKT 250/14E ATS250-14E
SKT 250/16E ATS250-16E
SKT 300 SKT 300/04D 300 400-1600 10000 500000 0.9 0.5 0.01 490 B7 (M24) ATS300-04D
SKT 300/08D ATS300-08D
SKT 300/12E ATS300-12E
SKT 300/14E ATS300-14E
SKT 300/16E ATS300-16E

 

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 Thyristor?

  • 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
  • SKT – Standard 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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