Railway, transit dc/dc converters operate from 40 to 160 Vdc

The MR1511S series of single output 15-W dc/dc converters are packaged in a 1 x 2 in. case. Five standard models operate from 40 to 160 Vdc featuring 4:1 inputs, and providing regulated single outputs of 3.3, 5, 12, 15 or 24 Vdc. Standard features include line/load regulation less than 1.0%, input/output isolation of 1,500 Vdc, a remote control input and efficiency as high as 89%. All models are protected for output short circuit faults and output over current faults. The MTBF (per MIL HDBK 217F) is greater than 1.0 Mh.

The MR1511S family is packaged in a compact 1 x 2 x 0.46 in. case. The pin-out is industry standard. Operation is specified for the wide industrial temperature range of -40° to +85°C. An optional heat sink is available to extend the full power range of the unit. The MR1511S series is designed for use in rail and transit applications.