20W AC/DCS In 2 X 1 Inch Format Are OVC III

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RECOM has added a 20W part to its ‘E-K’ range of encapsulated, PCB-mount AC/DC modules, the RAC20E-K/277. Even though it is economically designed, the series is dimensionally of the same size as the existing 20W at just 52.7mm x 27.6mm footprint, but with a different pinning that is compatible with further industry standards. It also features full load operation over a very wide input range of 85 – 305Vac. Single outputs of 5V, 12V or 24V are available, all at 80%+ efficiency, and no-load power consumption is less than 200mW to meet ECO directives. The ‘E-K’ range from RECOM is dimensionally the same as their ‘K’ series but with different pinning for compatibility with a wide range of industry standards.

A particular feature of the RAC20E-K/277 is its OVC III rating to 2000m altitude (OVC II to 5000m) and wide operating temperature range of -40°C to +90°C with derating, making it very suitable for harsh applications such as auxiliary supplies in roadside EV chargers as well as in industry, test and measurement and household generally, including applications with nominal 277Vac supply.

Isolation rating is also high at 4kVac and safety certifications include UL/IEC/EN 62368-1 and IEC/EN 61558-1/2-16. EN 55032 EMC ‘Class B’ limit is met without added external components.

As with all RECOM AC/DC products, comprehensive protection is included against output over-voltage, over-current and short circuits. Using high reliability components and advanced design techniques, the product MTBF is 830,000 hours at 25°C according to MIL-HDBK-217F (GB), supported by the standard RECOM 3-year warranty.

“The wide input range with no low-line restrictions makes these economical parts easy to design-in to world-wide applications,” said Michael Schrutka, AC/DC Product Manager of RECOM. “The high overvoltage category extends their potential usefulness even further,” he added.

Samples and OEM pricing are available from all authorized distributors or directly from RECOM.


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