New Industry Products

2W SMD Isolated DC-DCs with 3kVdc or 1kVdc Isolation

May 06, 2019 by Scott McMahan

The new R2SX from Recom is a low profile, open-frame 2W SMD isolated dc-dc converter with either 3kVdc/1s isolation (/H version) or 1kVdc/1s isolation options. The dc-dc has no minimum load requirement, and the efficiency stays high over a 20% to 100% load range. The operating temperature is from -40°C up to +75°C at full load, and up to +100°C with derating.

The converters are fully certified to IEC/EN/UL62368-1 and are 10/10 RoHS-conforming. A simple low-cost LC filter is all that is needed for Class B EMC compliance.

The dc-dc converter is available in with five variants with inputs of 5V or 24V and outputs of 3.3V, 5V, 5V, 15V, or 24V. These models have output currents of 606mA, 400mA, 400mA, 133mA, and 84mA respectively. The devices feature typical efficiencies of 79%, 81%, 85%, 85%, and 86% respectively. The converters have isolation of either 1.0kV or 3.0kV. Each of the variants comes in four models.

Recom backs the R2SX comes with a 3-year warranty.


  • 2W power supply in SMD package
  • -40°C to +100°C operating temperature
  • No minimum load required
  • Input Voltage: 5V, 24V
  • Output Voltage: 3.3V, 5V, 15V, and 24V
  • Output Current: 606mA, 400mA, 133mA, and 84mA


  • UL62368-1 certified
  • CAN/CSA-C22.2 No. 62368-1-14 certified
  • UL60950-1 certified
  • CAN/CSA-C22.2 No. 60950-1-07 certified
  • IEC/EN62368-1 certified
  • EN55032 compliant
  • EN55024 compliant
  • CB report