A range of 5W USB wall mount ac-dc adapters, the DCH5 series, is being launched today by Emerson Network Power, a business of Emerson (NYSE:EMR) and the global leader in enabling Business-Critical Continuity(tm). The adapters are based on an elegant all-in-one design, which eliminates the need for dedicated power cable attachments and connectors. Instead, one side of the adapter plugs into the ac supply socket, and the dc output is made available via a standard USB Type A receptacle on the opposite side.
All Emerson Network Power DCH5 series adapters have a universal 100 to 240 Vac input, enabling them to be used worldwide, and generate a regulated 5 Vdc output capable of delivering up to 1 A continuously. The adapters operate in constant voltage/constant current mode, and are intended for powering any USB peripheral device rated at 5 W or less requiring an external power source. Typical applications include small networking equipment, and powering or charging devices such as smartphones, tablets, digital cameras, portable gaming devices and e-book readers.
Emerson Network Power offers a choice of four DCH5 models, featuring different ac input plugs for use in the United States, Europe, United Kingdom and Australia. Each model is extremely compact and weighs just 2.3 oz (66 g), making it suitable for inclusion in users' overseas travel bags. Its slim form factor also means that multiple DCH5 adapters can be plugged into dual wall outlets.
All four models employ the latest switch-mode power conversion technology and meet Level V of the Energy Star international efficiency standard for consumer devices. The Emerson Network Power DCH5 series also complies with the Tier 2 Energy-related Products (ErP) requirements of Ecodesign Directive 2009/125/EC, which sets stringent standards for efficiency and standby energy consumption. The adapters have no minimum load requirement and a very low no-load power consumption of less than 300 mW.
Emerson Network Power DCH5 series power adapters have an extremely low safety ground leakage current of 20 microamps maximum. Comprehensive protection against fault conditions includes latching overvoltage, output short-circuit with auto recover, and overload protection to less than 1.5 A. DCH5 series adapters accommodate an ambient operating temperature range of zero to 40 degrees Celsius.
The DCH5 series adapters feature a built-in CISPR 22 Class B EMI filter and meet the EN55022 Class B and FCC Part 15 Level B EMC standards for conducted noise, as well as the EN55082-1 standard for electromagnetic susceptibility. They carry a comprehensive set of international safety approvals, including cUL/UL//TUV/NEMKO/NSW 60950-1 and CE Mark (LVD, EMC & ErP 2011).
Samples of the new Emerson Network Power DCH5 power adapters are available now.