Murata Power Solutions IRH-W80 250W Half-Brick Isolated DC-DC Converter

Murata Power Solutions IRH-W80 250W Half-Brick Isolated DC-DC Converter provides a 250W single output from an ultra-wide input voltage range of 16VDC to 160VDC, complying with input battery voltage transient ranges per EN50155 (2017). This isolated, regulated converter module comes in an industry-standard half-brick package that offers high-efficiency levels up to 91%. The fully isolated (4242VDC) module accepts a wide input voltage range while maintaining a fully regulated single output. The output voltage offers overvoltage, overcurrent, short circuit, and overtemperature protection. Murata IRH-W80 DC-DC Converter is designed for railway, transportation, and industrial applications, and is optimized for embedded applications on railway rolling stock environments.


  • Efficiency up to 91% @ 72Vin, 12Vout
  • Vout external trim adjustment
  • Overvoltage, overcurrent, and overtemperature protection
  • Positive or negative remote ON/OFF
  • Holdup time (10mS to 30mS)
  • Undervoltage-lockout setup (resistor programmable)
  • Conformally coated PCB
  • Encapsulated for harsh environments
  • Meets requirements for EN50155
  • UL 60950-1, 2nd Edition
  • IEC/EN60950-1, 2nd edition
  • RoHS compliant


  • Railway
  • Embedded applications on railway rolling stock environments
  • Transportation
  • Industrial


  • Half-brick package measures 63.1mm x 60.6mm x 13mm (2.39" x 2.49" x 0.55")
  • Ultra-wide 16V to 160V input range
  • 12V, 24V, or 54V output voltage
  • 250W output power
  • -40°C to +100°C operating baseplate temperature range
  • 4242VDC input-to-output isolation, reinforced


Published: 2020-10-13 | Updated: 2022-03-11