C&D Technologies’ Unveils New Quarter-Brick Converter for Intermediate Bus Architecture Applications

C&D Technologies has introduced a new isolated dc-dc converter that is intended to provide a cost and space saving solution for Intermediate Bus Architecture applications in computer and telecommunications equipment. The QUS40-096 has an unregulated output, and a fixed conversion ratio of 5:1 that is maintained between the input and output voltages. The module is housed in a compact, industry standard, quarter-brick footprint package.

Operating from a typical input voltage of 48Vdc, the QUS40-096 has an output voltage set-point of 9.6Vdc. It is able to deliver a maximum output power of 300W at 38Vdc input, +55°C and 200LFM airflow, and has a typical efficiency of 96.6%. By incorporating isolation (up to 2250Vdc), the new bus converter allows designers to achieve overall cost and real estate savings by allowing them to use non-isolated point-of-load (POL) devices rather than larger, more expensive isolated versions.

The QUS40-096 features a primary side remote enable capability (positive or negative triggered), plus over-current and over-temperature protection, both with automatic restart. The versatile module is also suitable for parallel operation allowing it to satisfy the requirements of higher power applications.

Overall dimensions of the QUS40-096 are 58.4mm x 36.8mm x 12.2mm. The module has UL94V-0 flammability rating and a demonstrated MTBF of two million hours. Operating temperature range is -40 to +85°C. Unit pricing for the C&D Technologies QUS40-096 is $54.78 in OEM quantities (USA, 1,000-piece pricing), and delivery is from stock to 12 weeks.