A new series of 3-W wall plug power adapters are dubbed the SWI3‑N and SWI3‑N‑USB series, available with North American input blades, and the SWI3‑E and SWI3‑E‑USB series, featuring European input blades. They are all certified to meet the current average efficiency and no-load power requirements enforced by the US Dept. of Energy (DoE) Level VI standards. The new series are also designed to meet the European Union proposed CoC Tier 2 directive, under review to become law in 2018. These measures tighten the efficiency requirements enforced by Level VI while adding a new power consumption limit at 10% load levels.
Housed in an ultra-compact case measuring as small as 2.54×1.42×0.89 in. 
(64.6x36x22.5 mm), these external ac-dc power supplies offer 5 V-dc single-regulated outputs, a wide universal input voltage range from 90 to 264 Vac, and no-load power consumption less than 0.075 W. Thanks to their ultra-compact design and class II construction, the new models are candidates for a wide range of consumer applications including media players, e-readers, GPS, and other mobile devices.
The SWI3-N and SWI3-E series feature a range of standard dc output connector options, including micro USB type B, while the SWI3‑N‑USB and SWI3‑E‑USB series incorporate an integrated USB connector. Models with fixed input blades for North American and Japanese applications carry UL/cUL and PSE safety approvals with European fixed blade models carrying CE and GS safety approvals. All of the wall plug adapters offer over-current, over-voltage, and short-circuit protections and comply with FCC Part 15 Class B limits for EMI/EMC.
The new SWI3 series are available immediately with prices starting at $3.90 per unit at 250 pieces through distribution.
CUI Inc., 20050 SW 112th Ave., Tualatin, OR 97062, 800-275-4899, 503-612-2300, www.cui.com/
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