Cost-effective board mount AC/DCs offer a choice of standard footprints

01-12-2021 | Recom International | Power

RECOM is offering two new 5W, board-mount AC/DC product ranges with a range of industry-standard sizes and pinouts at competitive prices. The RAC05E-K series is compatible with existing 3W part footprints, and the RAC05E-KT series is in the 'EI30' transformer-pack style. This series deliver 5W in the same footprint as other 3W parts on the market.


The input range for both is 90-264VAC (130-370VDC), and outputs offered are 4, 5, 12, 15 and 24V. Outputs are semi-regulated but remain within +/-5% over line, load and temperature variation from -25C to +55C. Both the -K and -KT alternatives will also work to +75C with derating.


Safety certifications include UL/IEC/EN 62368-1 for IT/multimedia and IEC/EN 60335-1 for household applications, with reinforced/3kVAC isolation. No-load power consumption is lower than 100mW, and light load efficiency is high, allowing significant standby power to be drawn without exceeding ErP limits. The RAC05E-KT range meets EN 55014 and EN 55032 'Class B' EMC limits without external components, while the RAC05E-K needs just a simple external filter. Complete protection is given against short circuits, output over-voltage, over-current and over-temperature with auto-recovery. The reliability of the parts is high, with the -K series delivering over 1.6M hours MTBF at 25C and the -KT series offering over 2.2M hours, backed up by the company's three-year warranty.


"These low-cost AC/DCs are an excellent way to upgrade from 3W to 5W in the same footprint or to replace EI30 transformers with additional rectification and smoothing circuitry by just one highly efficient module," commented Michael Schrutka, AC/DC product manager of RECOM: "They are ideal for worldwide industrial and building automation, ITE, office, household, IoT and test and measurement applications, where a semi-regulated output is sufficient."

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