40W Isolated DC-DC Converter Ultra-Wide Input & Regulated Single Output – URF1D_LD-40WR3 Series

SKU: URF1D_LD-40WR3 Categories: , , Manufacturer:

Product specs

Weight 32.3 g
Dimensions 50.8 × 25.4 × 11.8 mm

3.3V, 5V, 12V, 15V, 24V, 48V


833mA, 1.67A, 2.66A, 3.333A, 8A, 10A

Input Range


Min-Max Tamb (°C)

-40°C, +85°C

Product Description

URF1D_LD-40WR3 series of isolated 40W DC-DC converter products have an ultra-wide input voltage of 40-160Vdc and feature efficiency of up to 91%. Meeting reinforced isolation, input to output isolation is tested with 3000Vdc/1500Vac and the converters safely operate in an ambient temperature of -40℃ to +85℃ . Input under-voltage protection, output short circuit, over-current, over-voltage, over-temperature protection. It is ideally suiting electronic equipment and railway vehicle applications using 72V, 96V and 110V battery voltages.

Note: ①Use “H” suffix for heat sink mounting, “A2S” suffix for chassis mounting and “A4S” suffix for Din-Rail mounting. We recommend to choose modules with a heat sink for enhanced heat dissipation and applications with extreme temperature requirements.

②Minimum input voltage and start-up voltage are increased by 1V for all models with A2S (wiring) and A4S (rail) suffixes because of the input reverse polarity function.

③Exceeding the maximum input voltage may cause permanent damage.

④Efficiency is measured at nominal input voltage and rated output load; efficiencies for A2S and A4S Model’s is decreased by 2% due to the input reverse polarity protection.

  • Ultra-wide 4:1 input voltage range 
  • Reinforced isolation, I/O isolation test voltage 3.0KVDC/1.5KVAC 
  • Operating ambient temperature range: -40℃ to +85℃ 
  • Input under-voltage protection, output short-circuit, over-current, over-voltage protection, over-temperature protection 
  • EN62368, EN50155 approved 
  • Input reverse polarity protection available with chassis (A2S) or 35mm Din-Rail mounting (A4S) version 
  • Industry standard pin-out