Ultra-low profile AC-DC power supply for telecoms and Industrial applications

CUI Inc has unveiled a new 100 W baseplate-cooled, high performance ac-dc power supply series that offers power designers an ultra-low profile (17mm) in an encapsulated board mount package. The addition of the VBM-100 series ac-dc power supply to the company’s power product group is intended to meet the specific needs of ITE, telecommunications and industrial applications were space limitations and / or noise restrictions limit the use of fans for cooling.

In addition to outputting up to 100 W, the compact ac-dc series comes with a choice of six tightly regulated output voltages (12, 15, 24, 28, 36 and 48 Vdc) and a voltage accuracy of ±1% at 25°C. Custom voltages are also available on request.

Measuring 4.5 x 2.4 x 0.6 in. (117 x 61 x 17 mm), the VBM-100 series provides a universal input range of 90~264 Vac and features active power factor correction meeting EN61000-3-2 Class D standards.

The encapsulated units offer a no load power consumption of less than 0.5 W and run at efficiencies of up to 92%. The VBM-100 ac-dc supply operates at temperatures between -20°~85°C and incorporates several protections, including over voltage, short circuit, and over temperature.

All models carry UL/cUL and TUV 60950-1 safety certifications for ITE, commercial and industrial equipment, and are compliant with the EN 55022 Class B standard without the need for external filtering.



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