New Industry Products

100W, Quarter-Brick DC-DCs for Railway Applications

May 02, 2019 by Scott McMahan

Cincon introduced a new dc-dc converter series, CQB100W-110S. The dc-dc converter series delivers 100W of output power @ single output voltages of 5Vdc, 12Vdc, 24Vdc, 28Vdc, and 48Vdc with industry standard quarter-brick dimension. It has a 4:1 input voltage range of 43Vdc to 160Vdc (110Vdc nominal) and 3000Vdc basic isolation.

Cincon designed the CQB100W-110S series primarily for typical railway applications of 72V, 96V, 110V nominal voltages, and it is also suitable for distributed power architectures, battery-operated equipment, telecommunications, and industrial applications.

The power conversion device features high efficiency up to 92%, and has a case operating temperature range of -40°C to 105°C.

An optional heat sink is also available to extend the full power range of the converter. Additionally, this product has a low no-load power consumption (10mA), making it suitable for energy critical systems.

Primary Functions

Compliant with EN50155, EN45545-2, EN50121-3-2, the dc-dc converter's standard control functions include negative logic remote on/off (remote on/off for positive logic is optional), and ±10% adjustable output voltage.

Full Protections

The device is fully protected against input UVLO (under-voltage lockout), output over-current, output over-voltage, over-temperature, and continuous short circuit conditions.

(Click on chart to enlarge)


  • 100W Isolated Output
  • Efficiency up to 92%
  • Fixed Switching Frequency
  • 4:1 Input Range
  • Regulated Outputs
  • Remote On/Off
  • Low No Load Power Consumption
  • Over Temperature Protection
  • Over Voltage/Current Protection
  • Continuous Short Circuit Protection
  • Quarter Brick Size Meet Industrial Standard
  • UL60950-1 2nd (Basic Insulation) Approval
  • CB Test Certificate IEC60950-1
  • Meets EN50155 with External Circuits
  • Shock & Vibration Meets EN50155 (EN61373)
  • Fire & Smoke Meets EN45545-2
  • 3000m Operating Altitude