300-W supplies offer Class I, II inputs and Level VI efficiency

The TDK-Lambda medical and ITE-certified DTM300-D external power supplies offer a choice of Class I or Class II (no ground connection) inputs and meets the stringent Level VI DoE standards for efficiency and off-load power. The power supply series is certified to the medical IEC 60601-1 and ITE IEC 60950-1 standards, making it suitable for a variety of medical, industrial, and test and measurement applications.

The convection-cooled supply is housed in a rugged, vent-free enclosure, measuring 222 x 112 x 45 mm. It features standard IEC 60320-C14 (three-prong) or 60320-C18 (two-prong) connectors for ac power, and dc power is provided through a 10-pin Molex Mini-Fit connector. The power adapters also feature overvoltage and overcurrent protection.

Accepting a 90- to 264-Vac input, the 300-W adapters are available with 12-, 19-, 24-, 28-, 48-, and 54-V outputs and can operate in ambient temperatures ranging from –30°C to 60°C (derating linearly to 50% load from 40°C to 60°C). In addition to satisfying DoE Level VI requirements with an average efficiency of greater than 88%, the power supplies have an off-load power draw of

The adapter is certified to IEC/ES/CSA/EN60601-1, IEC/UL/CSA/EN60950-1, and carries the CE mark for the low-voltage, EMC, and RoHS 2 Directives. Input-to-output isolation is 4,000 Vac (2 x MoPP), with a touch current of