02 Nov 2017

Medical power supplies meet curve B radiated and conducted EMI

TDK has announced the introduction of the TDK-Lambda brand CUS30M and CUS60M series of AC-DC power supplies.

Rated at 30W and 60W, 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 CUS30/60M to be used in a wide range of applications, including home healthcare, medical, dental, test and measurement, broadcast and industrial equipment.

The two models are packaged in the industry standard 50.8 x 76.2mm (2” x 3”) footprint, with the CUS30M having a height of 24.2mm and the CUS60M a height of 26.7mm. Both can operate from a wide range 85 to 265Vac input and feature operating efficiencies of up to 90%. No load power consumption for the 30W is <300mW and <500mW for the 60W. The CUS30/60M can operate at full load, convection cooled, in ambient temperatures from -20 to 70°C (start up at -30°C), derating to 50% load at 70°C.

The series 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 / BF rated equipment. Touch current for the 30W is a maximum of 100µA and 60µA for the 60W, with leakage current less than 250µA and 200µA respectively at 265Vac 60Hz. The maximum operating, transportation and storage altitude is 5,000m.

The CUS30/60M series is safety certified to IEC/EN/ES 60601-1 and IEC/EN/UL 60950-1, with CE marking for the Low Voltage and RoHS2 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 standards. Additionally, models are available that comply with UL 1310 Limited Power Source (Class 2) and the IEC 60335-1 (household and similar electrical appliances).

Most popular news in Power management

Nanopower PMICs extend battery for “always-on” connected applications
Tiny 500W PSU meets latest medical and IT standards
1000-watt high-end DC/DC advanced bus converter launched
Gate drivers deliver up to 5 A, reducing complexity and cost
Automotive-grade regulators tolerate 60V battery transients

All news in this channel | All news


Share this page


Want more like this? Register for our newsletter






Fans in Digital Signage Players Are a Lose/Lose Proposition Jeff Hastings | BrightSign LLC
Fans in Digital Signage Players Are a Lose/Lose Proposition
Jeff Hastings of BrightSign has some interesting ideas on why fans should not be used in digital signage, and how to avoid using them.









Radio-Electronics.com is operated and owned by Adrio Communications Ltd and edited by Ian Poole. All information is © Adrio Communications Ltd and may not be copied except for individual personal use. This includes copying material in whatever form into website pages. While every effort is made to ensure the accuracy of the information on Radio-Electronics.com, no liability is accepted for any consequences of using it. This site uses cookies. By using this site, these terms including the use of cookies are accepted. More explanation can be found in our Privacy Policy