Power > CQB75-300S Series
CQB75-300S SERIES Screenshot

CQB75-300S Series

Input: 180 to 425V dc
Outputs: 5V to 48V dc
Power: 75 Watt
Tamb: -40°C to +105°C
Dims: Quarter Brick
3000V AC Reinforced Isolation

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The CQB75-300S series of DC-DC converters offer 75 watts of output power in single output voltages of 5, 12, 15, 24, 48VDC within an industry standard quarter-brick. It has a wide input voltage range of 180 to 450VDC (300VDC nominal) and 3000VAC reinforced isolation.

The CQB75-300S series has a high efficiency of up to 90%, giving a case operating temperature range of –40°C to 105°C. An optional heat sink is available to extend the full power range of the unit. Very low no load power consumption (10mA), an ideal solution for energy critical systems.

The standard control functions include remote on/off (positive or negative) and +20%, -20% (Except for 5Vout) adjustable output voltage.

Fully protected against input UVLO (under voltage lock out), output over-current, output over-voltage and overtemperature and continuous short circuit conditions.
CQB75-300S series is compliant with EN55032 (EMC), EN45545 (Fire and Smoke)  making it highly suited to distributed power architectures,  telecommunications, servers, base station, battery operated equipment, and industrial applications.

CQB75-300S05180-450V dc5V75W
CQB75-300S12180-450V dc12V75W
CQB75-300S15180-450V dc15V75W
CQB75-300S24180-450V dc24V75W
CQB75-300S48180-450V dc48V75W


Click on the link below for an instant download.

  • CQB75-300S Series Datasheet
  • CQB75-300S Series Application Note

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