Leading Power Semiconductor Manufacturer

Power Rectifier Diode Д Series (D Series)

Power Rectifier Diodes LJ-MD, also known as stud mount rectifier diodes, are versatile components designed to convert DC and AC currents up to 500A at frequencies of up to 500 Hz, accommodating voltages ranging from 300 to 3000V, depending on the specific series. These diodes are available in various types, ranging from 100A to 500A, providing a wide range of options to suit different applications. The technical specifications, part numbering guide, polarity information, dimensions, and recommended cooling solutions are provided to facilitate seamless integration into diverse systems. Additionally, our diodes feature a standardized housing and a sealed ceramic enclosure, ensuring reliable performance and protection against environmental factors. To enhance thermal management, air and water heat sinks are employed, along with heat-conducting paste during assembly, ensuring efficient heat dissipation and prolonged lifespan.

Rectifying diodes serve as essential components in power switches, offering low static and dynamic losses, high VRRM values, and robust resistance to thermal and electric cycling. Our diodes have been extensively utilized across various industries, demonstrating their versatility and reliability. We stand behind the quality of our products, offering a guarantee and providing certificates of conformity upon request. The pricing of our power rectifier diodes is determined by factors such as voltage class, quantity, delivery terms, manufacturer, country of origin, and payment method, ensuring transparency and flexibility to meet diverse customer needs.

Diode Normal/Reverse Polarity

For Symbols explanation CLICK HERE.

LJ-D271-250250 A (150ºC)2600-3000 V392 A5.5 kA151 kA2·s1.4 V785 A1.02 V0.51 mΩ50 mA160 ºC0.090 ºC/W30±5 N·m465 g
LJ-D271-320320 A (123ºC)2000-2600 V502 A6.5 kA211 kA2·s1.33 V1000 A0.92 V0.45 mΩ50 mA160 ºC0.090 ºC/W30±5 N·m465 g
LJ-D271-400400 A (144ºC)
544 A (120ºC)
300-1800 V628 A13.0 kA840 kA2·s1.45 V1256 A0.80 V0.53 mΩ40 mA190 ºC0.085 ºC/W30±5 N·m465 g
LJ-D271-500500 A (136ºC)
603 A (120ºC)
600-1200 V785 A16.0 kA1200 kA2·s1.40 V1570 A0.81 V0.38 mΩ40 mA190 ºC0.085 ºC/W30±5 N·m465 g
LJ-D271-400X400 A (150ºC)
592 A (120ºC)
300-1800 V628 A13.0 kA840 kA2·s1.45 V1256 A0.80 V0.53 mΩ40 mA190 ºC0.085 ºC/W30±5 N·m465 g
LJ-D271-500X500 A (142ºC)
659 A (120ºC)
600-1200 V785 A16.0 kA1200 kA2·s1.40 V1570 A0.81 V0.38 mΩ40 mA190 ºC0.085 ºC/W30±5 N·m465 g

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.