Low-Power DIN Rail DC-DC Converters

By CUI Inc 110

Low-Power DIN Rail DC-DC Converters

CUI announces a compact DIN rail DC-DC converter line to ease installation in industrial environments. The converter family is housed in a slim 76 x 31.5 x 25.8 mm (2.99 x 1.24 x 1.02 in) DIN-rail package with all electrical connections easily accessible by screw terminals. It has been designed for applications where the convenience of DIN rail mounting is required, such as industrial equipment, mobile equipment, and telecom base stations.

The family’s 47 modules, across three series, PYB10-DIN, PYB15-DIN, and PYB20-DIN, have an output range of 10 to 20 W. Available input ranges of 9 to 36 VDC or 18 to 75 VDC make the units ideally suited to battery-driven applications, where charging and discharging conditions require a wide input range. The device's -40°C to 85°C operating temperature range also allows the series to work reliably in harsh environments. For applications where power consumption is a concern, the PYB series delivers efficiencies reaching 91%.

The PYB family is available in single-output (3.3, 5, 12, 15, or 24 VDC), dual output (±5, ±12, or ±15 VDC), and in 15 and 20 W versions, triple output (3.3/±12, 3.3/±15, 5/±12, or 5/±15) models. Outputs are fully-regulated to within ±0.5% for overall line input conditions and ±1.0% for all load conditions. Input-to-output isolation of 1,500 VDC is provided across the range of models.


  • Up to 20 W isolated output
  • DIN rail package
  • 4:1 input range
  • Over-voltage, over-current, and short circuit protections
  • Remote on/off control
  • Output trim
  • -40°C to 85°C temperature range
  • Efficiency up to 91%


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