Isolated DC/DC Converter is suited for harsh environments.

Press Release Summary:

Designed for systems that need to be powered from 12 Vdc and 24/28 Vdc supplies, MQP120 series accommodates 9-40 Vdc input and is rated to 120 W. Standard output options provide voltages of 3.3, 5, 12, 15, and 24 Vdc. Measuring 3.74 x 0.45 x 2.56 in., fully encapsulated series exhibits power density of 26.7 W/in.³ and is resistant to effects of dust, vibration, and shock. Products can meet MIL-STD 461 standard for electro-magnetic immunity and MIL-STD 1275A-D for electrical immunity.

Original Press Release:

DC-DC Converter Designed for Harsh Environments Offers Wide Input Voltage Range

XP Power announces availability of a new series of isolated dc-dc converters. The MQP120 range has been specifically designed for systems that need to be powered from both 12 VDC, 24/28 VDC electrical supplies. The unit is ideally suited to military equipment that might be deployed in both army and commercial vehicles, such as those used for homeland security initiatives. The converter accommodates a wide range of input voltage, from 9 to 40 VDC, and is rated to 120W. Five standard output options are available, giving voltages of 3.3, 5, 12, 15 and 24 VDC.

The MQP120 is fully encapsulated, making the unit resistant to the effects of dust as well as vibration and shock. The unit is compact, being just 3.74 x 0.45 x 2.56 inches (95 x 11.5 x 65 mm), and has a high power density of 26.7 watts per cubic inch. The unit has an operating temperature range of -40 C up to a baseplate temperature of +100 C. An optional heatsink is available to simplify thermal design should cooling via the baseplate prove insufficient.

Typical systems that might use the MQP120 series include communications, sensors and weapons systems on military platforms. An example system is that of an imaging sensor, it needs to be powered from a 28 VDC supply when used in a Humvee but from 12 VDC when used in a commercial SUV.

The MQP120 series can meet military standard, MIL-STD 461 for electro-magnetic immunity and MIL-STD 1275A-D for electrical immunity. An application note is available from XP Power that describes how a design engineer can achieve compliance against these specifications.

The MQP120 is priced at $286 each for orders of 1,000 pieces.

For further information and reader enquiries:

Duane Darrow, XP Power, 305 Foster Street, Littleton, MA 01460
Tel: (978) 287-7260 Email:
Fax: (978) 287-7222 Web:

William Sng SK, XP Power (S) PTE LTD
Tel: +65 68469368 Email:
Fax: +65 67418730 Web:

XP Power is committed to being a leading provider of power solutions, including AC-DC power supplies, DC-DC converters. With ISO9001:2000, 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 25 sales offices throughout Europe and North America.

XP Power Ltd, a London Stock Exchange listed public company, has design centres in Pangbourne and Sawbridgeworth (UK), Boston (Massachusetts), and Sunnyvale and Anaheim (California). The design teams, together with those of partner companies, push back the boundaries of cost and technology, providing market leading power products. A dedicated Added Value Engineering team configures customer specific solutions. Using in-house CAD and design expertise, XP promise a rapid response. The applications team provide technical support to help customers integrate and use XP power products worldwide.

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