The BHT-319R-F4 Railway series and BHT-319-F4 Industrial series of DC-DC converters are designed for an operational life of over 30 years at high operating temperatures. Cooled by conduction and natural convection, the units deliver 300W continuous output power over a -40°C to +85°C temperature range without the need for derating.

This series of rugged DC-DC converters is designed for an operating life of up to 20 years in railway environments. This design eliminates optocouplers in the feedback loop, which contributes to an MTBF of over 175,000 hours at 45°C. Very low component count, large design headroom, and full electronic protection also contribute to the long operating life of the units.

ABSOPULSE Electronics has recently released the RSI 300-D3 IP66 series of railway quality DC-AC inverters. The units are packaged in IP66 waterproof diecast aluminum enclosures with sealed circular connectors. The internal inverter unit is heavily ruggedized for protection from shock and vibration. The converters are also protected from the ingress of sand, oil, salt, fog, insects and other environmental contaminants.

The DCR 100R and DCR 150R are recent additions to ABSOPULSE Electronics′ line of rugged, railway quality dc-dc converters. They meet the requirements of EN50155 for electronic equipment used on railway rolling stock. In addition, with an input voltage surge withstand capability of 385Vdc for >1 minute (3.5Vn for 20msec min.), they comfortably meet RIA12, which is the general specification for the protection of traction and rolling stock equipment from transients and surges in DC control systems.