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Power Rectifier Diode Д261 Series (D261 Series)

The D261-250 power rectifier diodes are stud diodes designed for general-purpose applications, capable of converting both direct and alternating currents up to 250A with a frequency of up to 500Hz in circuits with voltages ranging from 2400V to 2600V. The diodes feature the RSD6 case type with an M20x1.5 thread and a weight of 0.265 kg. Notable diode ratings include D261-250-24 and D261-250-26.

These diodes are essential components in power supply circuits of electro-physical installations and energy converters. To ensure efficient heat dissipation, the diodes are assembled with coolers using a threaded connection. During assembly, it is crucial to adhere to the specified clamping force (tightening torque M2) to ensure a reliable thermal and electrical contact with the cooler. Additionally, heat-conducting paste can be applied during assembly for enhanced heat dissipation. The diodes are manufactured for use in temperate, cold (UHL), or tropical (T) climates, falling under accommodation category 2.

Diode Normal/Reverse Polarity

LJD 26125026 UHL2 

  • LJ-MD 
  • Д Diode
  • 261 Series 
  • 250  Maximum permissible on-state current in amperes
  • 26 Class designation based on repetitive reverse voltage in hundreds of volts
  • UHL2 Class designation based on repetitive reverse voltage in hundreds of volts

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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.


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