400W Quarter-Brick DC-DC Converter for Telecom Applications

Murata Power Solutions has announced the availability of the RBQ series of isolated 12Vout, 400-Watt dc-dc converters. The RBQ-12/33-D48 model provides what are believed to be the industry's highest efficiencies of up to 96% from a standard DOSA-compliant quarter-brick package. The RBQ-12/33-D48 is designed to operate in most applications with convection cooling.

The RBQ-12/33-D48 can operate from a standard telephone network voltage (TNV) network supply of 36- to 75-Vdc around a nominal 48Vdc. The RBQ series is targeted for use in a host of telecommunications, enterprise IT and wireless networking infrastructures that use a distributed power or regulated intermediate bus architecture. The RBQ-12/33-D48 will reliably deliver 33A/400W @ 60°C with 200LFM airflow.

Optional features include a load sharing option for higher power or N+1 applications, conformal coating for harsh environments, Positive & Negative on/off control logic and optional pin lengths to accommodate various application board thicknesses.

Protection features include output over voltage, over current protection, input under voltage and over temperature shutdown. Input / Output isolation is provided by 2,250 Vdc Basic insulation.

Samples available from stock to 4 weeks, and OEM pricing as low as $44.00, depending on the model.