Energy-efficient power supplies target IoT

Posted By : Mick Elliott
Energy-efficient power supplies target IoT

15W and 20W AC/DC power supplies from RECOM are designed for low power IoT and household applications. Based on the footprint of the compact RAC10-K modules, these new modules feature high-efficiency over a wide load range and minimal standby power consumption. They are available from Rutronik UK.

The RAC15-K and RAC20-K series are PCB-mount AC/DC modules with ultra-low energy losses especially in light load conditions. Below 75mW, they have no load power consumption.

This makes them ideal for the always-on and standby mode operations needed for IoT and smart home devices.

Based on the latest developments of integrated power, the efficient power supplies allow 15W or 20W of power in a modular 2in. x 1in. case size.


The AC/DC converters have a universal mains input range of 85VAC up to 264VAC for worldwide use and come with international safety certifications for industrial, AV (audio/video) and ITE (IT-Equipment) as well as household standards.

Both the RAC15-K and RAC20-K are able to operate within a temperature range of -40°C to +80°C and offer fully protected 5VDC single outputs. They meet EMC class B far below the limits without the need for any external components.

The complete range of single output (5 - 48VDC), dual output options (12 and 15VDC) and wired versions will be available during Autumn 2018.


Target applications include smart homes and smart offices, building automation, security and communication systems, door access controls, remote sensors and actuators, climate controls, touchscreen interfaces and garage door-openers.

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