(Mar '20) TDK-Lambda Medical Power Supplies

TDK Corporation (TSE 6762) announces the introduction of the TDK-Lambda brand CUS600M AC-DC power supply series in a 3" x 5” footprint. Rated at 600W these compact products meet curve B conducted and radiated EMI in either a Class I or Class II (double insulated) construction, without the need for external filtering. This flexibility allows the CUS600M to be used in a wide range of applications, including home healthcare, medical, dental, test and measurement, broadcast and industrial equipment.

The CUS600M series accepts an 85VAC to 264VAC input and has a no-load power consumption of less than 0.5W when the output is inhibited. Seven output voltages are available, 12V, 19V, 24V, 28V, 32V, 36V, and 48V. A 5V 2A standby voltage, remote on/off, remote sense and a power good signal are fitted as standard. A cover with integral fan option is also available. The open frame models measure 76.2mm x 127mm x 37mm, or 85mm x 157mm x 42.5mm with the cover/fan assembly fitted.

Convection cooled the CUS600M can deliver 400W (600W peak) in -20oC to 40oC ambient temperatures, derating linearly to 200W load at 70oC. With forced air cooling or the integral fan fitted, the series provides 600W at 55oC ambient, derating to 420W at 70oC. The efficiency of the series is up to 96%, reducing internal power losses.

The CUS600M has an input to output isolation of 4,000VAC (2 x MoPP), 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, IEC60601-1-2 Edition 4 and IEC 61000-4 immunity standards

Main features and benefits

  • 400W (600W Peak) convection cooled, 600W with forced air
  • Medical certifications (2 x MOPP)
  • Class B conducted and radiated EMI
  • Suitable for Class I and Class II installations
  • Compact 3" x 5" x 1.46” size