DC-Transformer 257E-24-SD

Converter can be used in various applications

Key figures

  • ultrawide input voltage range: 15 ... 35 VDC
  • very high efficiency: up to 97%
  • peak input voltage: 37 VDC
  • output voltage / max. output current: 24.0 VDC / 15.0 ADC


Short-circuit proof buck-boost charging converter for primary use in supercapacitor-powered autonomous systems with an output-side backup battery. The converter with 24V output and up to 15A short-circuit current is designed to stabilize the 24V onboard power system. Can be supplied with LED on request. Customer-specific DC-DC converters with 12V or 13.8V output are possible at any time.


  • non-isolated step up and step down converter
  • very low input ripple and noise
  • continous no load and short circuit proof
  • for ambient temperatures of -40°C up to +85°C
  • thermal shutdown at +90°C
  • for active loads, can be connected in parallel
  • integrated EMI input and output filter
  • no derating of power
  • heatsinking metal case
  • robust design
  • unipolar output voltage
  • non-isolated output