AC/DC power supplies aimed at IoT, industrial applications

Posted By : Mick Elliott
AC/DC power supplies aimed at IoT, industrial applications

RECOM encapsulated RAC AC/DC power supply modules from Dengrove Electronic Components are perfect for space-constrained applications that need great light-load efficiency and low standby power. Ideal for industrial controls, IoT infrastructure, smart-building devices, and household appliances, the range comprises 5W, 10W, 15W and 20W options.

Built-in filters bring them well within EMC Class B limits with no additional external components required.

The 5W single-output RAC05-K measures just 1in. x 1in. and offers optional standard output voltages of 3.3V, 5V, 12V, 15V or 24V.

With low no-load consumption of 75mW, and high light-load efficiency, the RAC05-K series is ideal for powering always-on devices that have short periods of peak activity, such as control equipment, IoT gateways, or wireless sensors.

The 2in. x 1in. RAC10-K is available in either single-output or dual-output versions, giving the additional choice of ±12V or ±15V. The RAC15-K and RAC20-K feature an advanced design with next-generation efficiency, to pack up to 20W of output capability within the same 2in x 1in. footprint. They are available now with 5V DC output, and with a full range of single DC outputs up to 48V and ±12V or ±15V dual outputs by September 2018.

With long hold-up time of 60ms for the RAC-05 models, and 90ms for the higher-power versions, they ensure a stable supply for sensitive equipment even when the AC-input power quality is poor.

The easy-to-use modules are through-hole mounted, consuming minimal board real-estate. A wired option for the 20W series gives the added flexibility of off-board positioning.

Their universal 85-305V AC input allows use anywhere in the world, and conformity with the IECEE CB Scheme ensures acceptance by national certification bodies of major markets worldwide.

All models are EU ErP compliant, and the 15W and 20W versions are optimised for low standby power meeting the EU’s ENER Lot 6 eco-design rules for air-conditioning and ventilation systems. No-load consumption of just 40mW (typical) makes them ideal for many other industrial or home-electricals applications.

They also come fully certified to the latest UL/IEC/EN62368-1 safety standard, as well as the outgoing UL/IEC/EN60950-1, which helps designers manage the transition period before 60950-1 is withdrawn.

All outputs are fully protected including over-voltage protection and short-circuit protection with hiccup mode and auto-recovery/restart.

All modules comply with reinforced insulation specifications and, with 3kV input-to-output isolation voltage – up to 4kV in the 10W-20W models - satisfy safety specifications for industrial, AV, ITE, and domestic products.


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