Leading Power Semiconductor Manufacturer

The Triac Thyristor SST series is a range of high-performance power semiconductor devices manufactured by our company, utilizing advanced full diffusion technology. These thyristors feature a metal flat-plate ceramic package for excellent thermal performance and durability, as well as a central gate structure for improved performance and reliability. With its double-sided cooling design and unique conduction capabilities, the SST series is suitable for a wide range of high-power applications, including AC motor control, industrial heating, and power supplies. Whether you need a solution for demanding industrial applications or high-voltage power supplies, the Triac Thyristor SST series delivers reliable and efficient performance in a compact and rugged package.



  • LJ-MD 
  • SST Triac Thyristor
  • 200 IF(AV)
  • C Capsule Package

For Symbols explanation CLICK HERE.

THS55°C10 ms25°C
LJ-SST200C200 - 20002001.72020 - 2000.8 - 2.520 - 2002.4/3000.1203.3 - 5.5E1/E2
LJ-SST300C200 - 20003002.53020 - 2000.8 - 2.520 - 2002.4/5000.0655.3 - 10E2
LJ-SST400C200 - 200040033520 - 2500.8 - 2.520 - 2002.4/5000.0555.3 - 10E2
LJ-SST500C200 - 200050044020 - 3000.8 - 3.020 - 3002.4/7000.04010 - 20E5
LJ-SST600C200 - 20006004.24020 - 3500.8 - 3.520 - 3002.4/9000.03510 - 20E5
LJ-SST800C200 - 20008006.85020 - 3500.8 - 3.020 - 4002.4/12000.03515 - 20E5/E6
For the below products:
Tjm = 125°C
dv/dt = 50 V/μs
di/dt = 50 A/μs
For the datasheet or inquiry, please contact us

For Any Help Or Datasheet

Looking to revolutionize your power control solutions? Look no further. At LJ-MD, we specialize in delivering cutting-edge diode and thyristor technologies that meet the highest industry standards. With a strong focus on innovation, reliability, and performance, our products are designed to excel in a wide range of power applications.


From high surge current capability to precise power control, our diodes and thyristors offer exceptional features that cater to your specific needs. Whether you require efficient rectification, fast switching, or precise phase control, our products deliver reliable and precise results.


At LJ-MD, we understand that every project is unique. That’s why we provide personalized support and guidance to ensure you find the perfect solution for your requirements. Our team of experts is always ready to assist you in selecting the right product and providing technical assistance.


Don’t miss out on the opportunity to optimize your power control systems. Contact us today to discuss your project requirements, and let us help you find the ideal diode or thyristor solution to drive your success.

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We are open to manufacturing products at our production facilities according to your requests and technical specifications.