600W medical AC-DC power supply has 3 x 5in footprint

February 27, 2020 //By Nick Flaherty
The 600W TDK-Lambda CUS600M AC-DC power supply has an efficiency of 96 percent which minimises the internal heating and allows it to fit into a standard 3 x 5in package.
The 600W TDK-Lambda CUS600M AC-DC power supply has an efficiency of 96 percent which minimises the internal heating and allows it to fit into a standard 3 x 5in footprint.

TDK has launched a high efficiency 600W AC-DC power supply for medical and industrial designs.  

The TDK-Lambda CUS600M AC-DC power supply has an efficiency of 96 percent which minimises the internal heating and allows it to fit into a standard 3 x 5in package

The AC-DC power supply series is certified to the medical and ITE (Information Technology Equipment) standards for Class I and II (no earth ground connection) operation. These can be used in medical, home healthcare, dental, test and measurement, broadcast, professional audio and industrial equipment.

There are seven standard output voltages available in the AC-DC power supply series, from 12V, 19V, 24V, 28V, 32V and 36V to 48V. All the power supplies have an 85 to 264Vac input and have a no-load power consumption of less than 500mW when the output is inhibited. A 5V, 2A standby voltage, remote on/off, remote sense and a power good signal are fitted as standard. A cover with a fan option is available. The open frame models measure 76.2 x 127 x 37mm (WxLxH), or 85 x 157 x 42.5mm with the cover/fan assembly.

With convection cooling, the CUS600M provides 400W (600W peak) in -20°C to +40°C ambient temperatures, derating linearly to 200W load at +70°C. With forced air cooling the series provides 600W at +55°C ambient, derating to 420W at +70°C.

The CUS600M has an input to output isolation of 4,000Vac (2 x MoPP medical isolation), an input to ground isolation of 2,000Vac (1 x MoPP) and an output to ground isolation of 1,500Vac (1 x MoPP) for suitability in B and BF rated medical equipment. The leakage current is <200µA and touch current is <100µA. The maximum operating, transportation and storage altitude is 5,000m.

Safety certifications include IEC/EN/ES 60601‑1 and IEC/EN/UL 62368‑1 with CE marking for the Low Voltage, EMC and RoHS Directives. 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


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