Power & EMC

Ultra-Wide Input, Railway/Transit DC/DC Converters

The MR4011SRU series is a family of single output 40W DC/DC converters packaged in a compact 1 x 2 in case. They are specifically designed to provide the ultra-wide input range, robust performance, rugged packaging and high reliability required for railway/transit applications.

They operate from wide 40 VDC to 160 VDC (110 VDC nominal) inputs, providing tightly regulated single outputs of 3.3, 5, 12, 15, 24 or 48 VDC. Standard features include line/load regulation less than 1.0%, I/O isolation of 3,000 VDC, a remote control input and efficiency as high as 91%. They are protected for output short circuit faults and output over current faults. All models comply with multiple industry standards including EN 62368, EN 50155 and EN 55032. The MTBF (per MIL HDBK 217F) is greater than 500 khours.


  • 40W Output Power
  • 40-160 VDC Input range
  • 3 kV Reinforced Isolation
  • Efficiency to 91%
  • EN 62368 approved
  • EN 50155 approved
  • EN 55032 compliant
  • Compact 1 x 2 Inch case
  • -40°C to +85°C Operation
  • Industry standard pin-out
  • Chassis Mount option
  • DIN Rail Mount option

MR4011SRU Datasheet