XP Power announces the RDC30 series of highly-efficient metal-cased and isolated 30 W DC-DC converters designed specifically for railway applications. Accommodating a wide-input-range based around the popular railway input voltages of either 72 (36-140) VDC or 110 (55-176) VDC, the converters are available with single, dual, or triple-outputs and conform to the railway industry transient standards EN50155, NF F 01-510, and RIA12. The single-output models provide the standard regulated output voltage of 3.3, 5, 12, or 15 VDC, and duals provide ±5, ±12, or ±15 VDC. Triple output models provide a 3.3 VDC output with either ±12 or ±15 VDC outputs, or a 5 VDC output with either ±12 or ±15 VDC outputs.
These convection-cooled converters have an efficiency rating of up to 91%, and deliver a power density of 37.5 W per cubic inch from their compact package that measures 25.4 x 50.8 x 10.16 mm (1 x 2 x 0.4 inches). When convection cooled, the operating temperature range is from -40°C to 75°C. An optional heat-sink extends this up to 80°C. Maximum case temperature is 105°C. 1500 VAC basic isolation between input and output, and 1600 VDC between input/output and the metal case is provided across the range.
The RDC30 series complies with the internationally-recognized EMC standard EN50121-3-2 as required for railway applications and rolling stock apparatus.
A remote On/Off function gives external control of the output while a trim input provides the capability to adjust the output voltage ±10% of the nominal output voltage.