Designed for use in energy critical systems, the CQB75W8 has very low no-load power consumption (10mA). The 75W quarter-brick DC-DC converter has an input range of 9V-75V dc and outputs of 12V – 48V dc and 3,000V AC input to output isolation.
The second addition to the range available from Relec Electronics, is the CHB150W8. This 150W half brick format DC-DC converter has an input range of 9V-75V dc and outputs available of 12V – 48V dc and 1,500V DC input to output isolation.
Both the CQB75W8 and CHB150W8 series can withstand an input surge of 100V for 100mS. The addition of EMC filter components, enables the DC-DC converters to be used in military systems which are required to meet RTCA DO-160E, DEF STAN 6-15 part 6, Mil-STD-1275D and Mil-STD-704A.
The rugged DC-DC converters are qualified to stringent regulations, including EN45545-2 fire and smoke, EN 50155 (EN 61373) shock and vibration for railway use, UL62368-1 2nd edition reinforced insulation, CB test certificate IEC62368-1 and EN50155/EN50121-3-2 with external circuits. They are also qualified for operation up to 5,000m.
Efficiency is up to 90%, allowing for a wide case operating temperature range of -40°C to +105°C.
Optional heat-sinks are available to extend the operating temperature range of the modules.
Standard control functions include remote on/off (positive or negative) and +15%, -20% adjustable output voltage (single output only).
All units are fully protected against input UVLO (under voltage lock out), output over-current, output over-voltage and over-temperature and continuous short circuit conditions.
Samples are available now, and production lead times are six to eight weeks.
Power conversion and display specialist, Relec, has a technical team available now to guide customers through the design in process, provide samples and commercial support throughout the design process and into production.