Power & EMC

16-160V Ultra-Wide Input Railway Power Modules

NetPower introduced the ultra-wide input railway power modules to the railway product offerings. This new QYR9S series quarter bricks have a 10:1 input range of 16-160V and output power of 50W; available codes are 5V/10A, 12V/4A and 24V/2A.

This new wide input DC-DC power modules are compatible with many standard bus voltages, and they are provided with encapsulated packages for reliable applications. The modules have fixed frequency operation and rich protection features. The 3000 Vac input to output isolation and different temperature grades make sure the modules are good fits for railway transportation, vehicles, automation, testing and other high reliable application context, and the alternative pin option make them more versatile for operation.

NetPower QYR9S series are recognized to IEC60950-1 2nd edition and meet the requirements of EN50155.


  • High efficiency and excellent thermal performance
  • No minimum load requirement
  • Protection against input under-voltage, output over-voltage/over-current/short circuit, and over-temperature
  • Output remote sense
  • Fixed frequency operation
  • 3,000Vac input to output isolation
  • Encapsulated for harsh environment
  • Flanged baseplate available
  • Different temperature grades available
  • UL62368-1 approval pending
  • Meets EN50155 & EN45545-2

QYR9S series

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