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The RHM20W series are high performance 20W DC/DC converters with 3000VAC reinforced isolation and 4.5 mm clearance/ creeping distances for safety critical application. This next generation of board mountable DC/DC converters has been designed especially for the demanding, ruggedized railway and industrial applications.

This 20W DC/DC converter series offer single and dual output models in a 1.6”x1” package. It extends these high performance and high isolation DC/DC converters to be a complete series of 3W, 6W, 10W, 20W and 40W. They have an input range of 36-160VDC and are equipped with circuits for over/under-voltage protection, over-current and short-circuit and over-temperature protection.

This high-density power converter series is realized by using a patented transformer design, which lets the converters perform with an efficiency of up to 90.5%. The high dielectric strength plastic housing with high-thermal conductivity, comparable with metal casing, performs the isolation between input-case-output and allows an operating temperature range of -40°C to +105°C.

Our highly experienced R&D designers have equipped these converters additionally with internal EMI circuits: IEC/EN 55032 Class A and IEC/EN 50121-3-2, to simplify the design for saving space on PCB. This series is certified according to IEC/EN/UL 62368-1, EN 50155 and EN 45545-2.

Additionally, shock and vibration are compliant with EN 61373 and MIL-STD-810F. With an operating altitude of up to 5000 meters, a wide operating ambient temperature of -40°C to +105°C, 36-160VDC input range, makes them very suitable for any safety critical application where a SELV output is mandatory. Examples are Bus Voltages of 72, 96, 110 VDC which need a safety barrier on the secondary side in rolling stocks, in transportation or in harsh industrial environments.

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Features

  • 20 Watt output power
  • 4:1 wide input range from 36 to 160VDC
  • Built-in EN 55032 EMI Class A filter
  • 3000 VAC input to output reinforced insulation
  • Operating altitude up to 5000m
  • 3-Year warranty
  • IEC/ UL/ EN 62368-1, EN 50155 and EN 45545-2 safety approval

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Samples are available now. Our product specialists are on hand to assist with product selection and guide you through the design cycle. We offer technical and commercial support.

Please contact us to arrange samples for evaluation or for more information

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Model Information

Model No Input Range Output Range
RHM20-110S05W 36 ~ 160 VDC 5 VDC / 4000 mA
RHM20-110S5P1W 36 ~ 160 VDC 5.1 VDC / 4000 mA
RHM20-110S12W 36 ~ 160 VDC 12 VDC / 1670 mA
RHM20-110S15W 36 ~ 160 VDC 15 VDC / 1330 mA
RHM20-110S24W 36 ~ 160 VDC 24 VDC / 833 mA
RHM20-110D05W 36 ~ 160 VDC ±5 VDC / ±2000 mA
RHM20-110D12W 36 ~ 160 VDC ±12 VDC / ±833 mA
RHM20-110D15W 36 ~ 160 VDC ±15 VDC / ±667 mA

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