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MWS series – ‘Green’ power supplies from TDK-Lambda

TDK-Lambda UK has introduced a new series of 'green' power supplies that is ideal for use in environmentally friendly, compact electronic equipment. The 65W 2" x 4" MWS series AC-DC power supply has a very low 1" profile and uses innovative design techniques to combine high efficiency, high power density and low standby power.

TDK-Lambda UK, a group company of the TDK Corporation, introduces the 65 watt MWS65 series of open-frame, medical AC-DC power supplies. With 4kVac reinforced input to output isolation and output to ground isolation of 1500Vac, all models in the MWS65 series comply with UL/EN60601-1 Editions 2 & 3 safety approvals for medical equipment and with the convenience of onboard dual fusing are ideal for use in B (Body) and BF (Body Floating) type medical applications.

Using innovative design techniques to combine high efficiency and high power density, the MWS65 also has less than 0.3W no load input power. With an industry standard footprint of 2 x 4 inches and very low 25.4 mm (1 inch) profile, the MWS65 is a compact, convection cooled unit also suitable for use in light industrial equipment, Point-of-Sale terminals and displays, Test & Measurement and Broadcast applications.

Operating from a universal 90 to 264Vac input, the MWS65 power supply is offered in 5 models with nominal outputs of 5V (11A), 12V (5A), 15V (4.4A), 24V (2.8A) and 48V (1.4A), which are user adjustable by ±10%. With a flat efficiency curve of up to 89%, from 20 to 100% load, the MWS65 can be operated at full load from -20 to 50°C ambient temperature and up to +70°C with suitable derating. Overvoltage and overcurrent protection is standard.

CE marked in accordance with the LV Directive and delivered with a 3-year warranty, the MWS65 carries a host of safety agency approvals, including UL/CSA/EN60950-1, EN50178 (OV II) and UL/EN60601-1, as well as compliance to EN5011/EN5022-B, FCC Class B and VCCI-B for both conducted and radiated EMI.

For more information about the MWS65 series of AC-DC power supplies, including a comprehensive datasheet, please call TDK-Lambda directly on +44 (0)1271 856600 or visit the website at:

TDK-Lambda UK

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