The 400W FCM Chassis Mount DC/DC Converter Series features an ultra wide 4:1 input range of 18 to 75 Vdc with output voltages of 5, 12, 24, 28 and 48 Vdc. All models are isolated input to output and housed in a rugged, encapsulated enclosure with recessed barrier strips. Operating temperature range is -40ºC to +100ºC. Through holes are provided for backplane mounting or the attachment of a heatsink for extended temperature operation. Output voltage accuracy for all output voltage options is ±1%, line and load regulation is 0.05% and 0.02%, and efficiencies are up to 93%. CALEX MFG. CO. INC., Concord, CA. (800) 542-3355.