DC-DC Converters feature 4-to-1 input voltage range.

Press Release Summary:



Providing up to 100 W of output power from 48 V input, 0RQB-C0U Series of open-frame dc-dc converters accommodate both 24 and 48 V standard input voltage in same module. They operate at output voltages from 1.2-12 V in industry standard ¼ brick 2.28 x 1.45 in. package. Features include differential remote on/off, positive/negative remote sense, input over-/under-voltage lockout, fixed frequency of 285 kHz, and operating temperature range of -40 to +85°C.



Original Press Release:



BEL's 1/4 Brick DC-DC Converters Simplify the Implementation of Board-Level Distributed Power Architectures



Open-Frame Modules Boast 4-to-1 Input Voltage Range

Westborough, MA, February 5, 2008...The Bel Power division of Bel Fuse Inc. (NASDAQ: BELF.A & BELF.B) announced the 0RQB-C0U Series of open-frame isolated DC-DC converters has joined the Company's broad offering of RoHS-compliant isolated and non-isolated power DC-DC converters for high-speed networking, telecommunications, and computing applications. Housed in the industry standard ¼ brick (2.28" L x 1.45" W) package, the low-cost series provides up to 100W of output power from a nominal 48V input. Notably featuring a 4-to-1 input voltage range to accommodate both a 24V and 48V standard input voltage in the same module, it is moreover engineered with built-in input and output filtering to further minimize part counts. The highly reliable devices operate at efficiencies up to 91% over an ultra wide range of output voltages extending from 1.2V to 12V.

Bel's newest UL/cUL 60950-1 approved series may be confidently specified for employment in a broad array of distributed power architecture applications where space is limited, and overall weight is a factor. Among the most common uses for these high power density parts are in wireless networks, optical and access networks, as well as in industrial networks and equipment. Additionally, their open-frame construction makes them ideally suited for convection-cooled environments.

The isolated DC-DC converters offer a full complement of control and protection features that include differential remote on/off, positive/negative remote sense, input over-/under-voltage lockout, and over-temperature protection. Parts also offer output voltage trim, current limit, and short circuit protection. These devices switch at a fixed frequency (285 kHz) and have an operating temperature range of -40 to +85 degrees C.
For more information visit, http://www.belfuse.com/Data/Datasheets/0RQB-C0U_PDS_A_030307.pdf.

Pricing for the 0RQB-C0U Series of DC-DC converters starts at $47.50 each in quantities of 1,000. Samples and production quantities are available from stock with lead times of up to 12 weeks. To locate a representative, visit belfuse.com/BelPower/FindARep.asp, or to find a distributor, visit http://belfuse.com/BelPower/DistributorList.asp.

About Bel
Bel (www.belfuse.com) and its divisions, including Bel Power, are primarily engaged in the design, manufacture, and sale of products used in networking, telecommunications, high- speed data transmission, and consumer electronics. Products include magnetics (discrete components, power transformers and MagJack' connectors with integrated magnetics), modules (dc-dc converters, integrated analog front-end modules, custom designs), circuit protection (miniature, micro and surface mount fuses) and interconnect devices (passive jacks, plugs and cable assemblies). The Company operates facilities around the world.

Bel Power Inc.
155 Flanders Road
Westborough MA, 01581
508/870-9775; Fax: 508/870-9796
Web Site: www.belpower.com
E-mail: belfuse@belfuse.com
NASDAQ: BELF.A and BELF.B

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