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ERM75 High Input Range Series


75 W DC-DC Converters (High Input Models)

The ERM75 series 75 W isolated DC-DC converter modules are designed for railway applications. Low-input models feature a 43 to 101 VDC input range and high-input models 66 to 160 VDC, all complying with EN50155 standard for electronic equipment used on rolling stock. You also have a choice of single-output models offering 5, 12, 15, or 24 VDC.

Featuring reinforced insulation rated at 3000 VAC RMS, all models offer differential remote sense, remote On/Off and undervoltage shutdown, as well as overload and short-circuit protection. Maximum efficiency is 92% and operating temperature up to 80℃ ambient with suitable derating.

They are available fully encapsulated in metal case with an isolated baseplate, offering an industry-standard 2.28 x 1.45-inch (57.9 x 36.8 mm) quarter-brick footprint and 0.5-inch (12.7 mm) height.


  • High Efficiency up to 92%
  • Input Range 66160 Vdc
  • Operating Temp. Range 40 °C to +80 °C
  • Reinforced Insulation 3000 VACrms
  • Safety meets EN609501 and Railway Standard EN50155
  • Small 57.9 x 36.8 x12.7 mm package
  • Vibration and Thermal Shock to EN61373
  • Input range 66 - 160 Vdc
  • Input Efficiency 92% @ 12 Vo
  • Voltage tolerance ±1.0%
  • Overload protection 150% typ of Io max, hiccup
  • Insulation resistance 1000Mohm
  • Insulation capacitance 3000pF
  • Isolation voltage 3000Vac
  • Switching frequency: 320 KHz
  • Mechanical Baseplate 1/4 brick encapsulated


  • Metal Case with Isolated Baseplate
  • No Minimum Load Requirement
  • Remote On/Off
  • UnderVoltage Shutdown


Output Power (W): 75
Length (Inches): 2.28
Width (Inches): 1.45
Height (Inches): 0.5
Mounting Type: BMP; Through Hole
Minimum Output Current (A): 0
Maximum Output Current (A): 15
Output Voltage Range (V): 5V to 15V
All Specifications Collapse Specifications

Stock Check

Model Number
Min. Voltage (V) Max. Voltage (V) Current (A) Nominal Voltage (V) Number of Outputs Samples Buy
ERM03H110 Active, In Stock 0 Request Buy
ERM05C110 Active, In Stock 15 15 5 15 1 Request Buy
ERM06B110 Active, In Stock 12 12 6.25 12 1 Request Buy
ERM15A110 Active, Contact Us 5 5 15 5 1 Contact Us Buy

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