TDK Corporation is launching 100W rated TDK-Lambda brand CUS100ME series of medical and industrial AC-DC power supplies. The series delivers 75W in ambient temperatures of up to 85degC with just 1m/s airflow; however, with conduction cooling, it can provide full power at up to 70degC. Target markets include industrial equipment, test and measurement, home healthcare, medical, dental and broadcast.
A choice of seven standard output voltages is offered; other voltage settings are available upon request. The input voltage range is 85 to 264V AC, 47 to 63Hz with the capability of accepting 47 to 440Hz. Operating efficiencies are up to 94 per cent, with an average efficiency of >87 per cent and <0.5W no-load power consumption.
Available in four package types, the power supplies are designed for use in both Class I or Class II (double insulated) installations. The open frame CUS100ME measures 50.8 × 101.6 × 31.5mm (W×L×H), the U chassis 64 × 116 × 38.5mm, or 64 × 116 × 39.7mm with a cover. A 34.2mm high version with a metal baseplate can also be ordered. The U channel and baseplate models facilitate the very high ambient temperature conduction cooling ratings.
Like the 30W, 60W and 150W models in the series, the CUS100ME has an input to output isolation of 4000V AC (2 × MoPP), an input to ground isolation of 1500V AC (1 × MoPP) and an output to ground isolation of 1500V AC (1 × MoPP) for suitability in B and BF rated medical equipment. The leakage current is <250uA and touch current is <100uA. The maximum operating, transportation and storage altitude is 5000m.
Safety certifications include IEC/EN/ES 60601 1, IEC/EN/UL 60950 1, IEC 61010 1 (designed to meet) with CE marking for the Low Voltage, EMC and RoHS2 Directives. A derivative meeting EN 60335 1 can be supplied upon request. The units also comply with EN 55011 B and EN 55032 B conducted and radiated emissions (Class I and II), and meet the EN 61000 3 2 harmonics, IEC 60601 1 2 Edition 4 and IEC 61000 4 immunity standards.
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