Rugged 350 W AC/DC Power Supplies comply with SEMI-F47.

Press Release Summary:

Comprised of 6 single-output models, 7.0 x 3.6 x 2.1 in. SHP350 series accepts 85–264 Vac, achieves power density of 6.6 W/in.³, and offers typ efficiency of 85%. Output from +12 to +48 Vdc can be adjusted within ±10%, and auxiliary output provides always-on +5 Vdc/0.2 A. Cooled via variable-speed fan, power supplies operate from -20 to +70°C, with no derating until +50°C, and offer start up from -40°C. Remote sense facility compensates for voltage drop of up to 0.5 V due to line losses.

Original Press Release:

Rugged 350 W AC-DC Power Supplies Comply with SEMI-F47 Requirements

XP Power today announced the SHP350 series of single output rugged 350 W AC-DC power supplies aimed at industrial applications. Achieving a high power density of 6.6 Watts per cubic inch and with a typical efficiency of 85%, these compact fan-cooled units measure only 7.0 x 3.6 x 2.1 inches (177.8 x 91.44 x 53.34 mm).

The series comprises six single output models providing the popular nominal output voltages from +12 to +48 VDC. The output is also capable of being adjusted within +/- 10% in order to cater for any non-standard voltage applications. A remote sense facility compensates for a voltage drop of up to 0.5 V due to line losses. An auxiliary output provides an always-on +5 VDC / 0.2 A output suitable for powering memory, logic or control functions.

The supplies accept the full universal input range from 85 to 264 VAC. When operated at high-line input voltages above 180 VAC, the SHP350 has a peak power capability that can deliver up to 420 Watts output for up to 10 seconds. The ability to momentarily provide a higher output power is ideal for applications, such as motor start-up, where increased power is very occasionally required. Customers need not design in a higher wattage power supply thus saving additional cost and valuable board space.

Control signals include AC OK/power fail and a remote On/Off input. A single wire current sharing facility allows the addition of extra units to provide an overall higher power output or to configure redundant units.

The SHP350 can operate over a wide temperature range of -20 to + 70 degrees C, with no derating until +50 degrees C and offers start up from -40 degrees C. The units are internally cooled and employ a variable speed fan to assist in audible noise reduction.

Meeting the SEMI F47 Voltage Sag Immunity Standard for factory automation equipment, especially relevant to the production of semiconductors, the SHP350 can assure the required output voltage and current will be maintained in the event of a sag in AC input voltage below specified limits. The units also meet the IT equipment safety specification UL/EN 60950-1 and comply with the EN55011 / EN55022 level B standard for conducted emissions without the need for additional filtering components.

The SHP350 compliments two higher output power ranges of 650W and 1000W currently available within the SHP family.

Pricing for the SHP350 is $152.10 for 500 unit orders and is available from Newark or direct from XP Power.

For further information and reader enquiries:

Mike Laver, XP Power, 990 Benecia Avenue, Sunnyvale, CA 94085

Tel:  (408)732-7777 Email:

Fax: (408)732-2002  Web:

William Sng SK, XP Power (Singapore) PTE LTD

Tel: +65 68469368   Email:

Fax: +65 67418730   Web:

For further information, text and graphics by email or to discuss feature article opportunities:

Robert Huntley, Publitek Limited, 18 Brock Street, Bath, BA1 2LW, United Kingdom

Tel: +44 (0) 1225 470000  E-mail:

Fax:  +44 (0) 1225 470047  Web:

XP Power is committed to being a leading provider of power solutions, including AC-DC power supplies and DC-DC converters. With ISO9001:2008, XP Power offers total quality, from in-house design through to manufacturing facilities around the world. The company offers the widest range of power products available from one source and unrivalled technical and customer support, aiding both vendor consolidation and cost reduction programmes. XP has 27 sales offices throughout Europe, North America and Asia.

XP Power Ltd, a London Stock Exchange listed public company, has design centres in Fyfield (UK), Orange County (California), and Singapore, which also serves as the company’s headquarters. Manufacturing is carried out near Shanghai, China and Ho Chi Minh City, Vietnam. The design teams push back the boundaries of cost and technology, providing market leading power products. Dedicated in-house Engineered Solutions teams provide customer specific solutions, with rapid response times. The applications team provide expert technical support to help customers integrate and use XP power products worldwide.

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