Bel Power Solutions Announces Digital Power Technology Patent License with Cosel

Bel Fuse Inc. (NASDAQ: BELFA/BELFB), a premier global manufacturer of networking and telecommunication products and power management solutions, announced today that it has entered into a non-exclusive, worldwide, multi-year field of use license agreement with Japan-based Cosel, Co., LTD, a leading global provider of high-quality, ultra-small AC-DC power supplies, DC-DC converters and noise filters. Under the terms of the agreement, Bel Power Solutions has licensed specific digital power technology (DPT) patents to Cosel, which will design and manufacture an array of board mounted power supply solutions employing the newly licensed DPT. The DPT patents were acquired by Bel through the Company's recent acquisition of the Power-One's Power Solutions business from ABB Ltd. (NYSE: ABB).

Digital power architecture enables OEMs' products and data centers to optimize power conversion efficiency, reduce energy costs, and enhance energy management capabilities. It drives increased power density, lower cooling costs, improved product functionality, advanced monitoring, and flexible product configuration.

DTP is used in designs based on FPGAs (Field-Programmable Gate Array), ASICS (Application Specific Integrated Circuit) and DSPs (Digital Signal Processor) requiring multiple voltage rails and output voltages dropping below 1V. DPT facilitates telemetry, which allows the system to accurately monitor its power consumption and thermal performance to let designers easily engineer key features such as system power optimization, fault detection and predictive maintenance features into their end products.

Dan Bernstein, president and CEO of Bel, stated, "Our DPT patent license agreement with Cosel underscores the value of Bel's technology patents and exemplifies our commitment to encouraging innovation by licensing access to our patent portfolio. We look forward to working with Cosel and continuing to provide energy-efficient technologies with increased functionality for our customers worldwide."

"These DPT patents support the development of new values by Cosel to address the needs of our various industrial customers," said Masato Tanikawa, President of Cosel. "Configurability through serial communication is crucial to system optimization and maximizing power conversion performance. We are delighted to now be utilizing the DPT patents acquired from Bel."

About Bel

Bel (www.belfuse.com) and its divisions are primarily engaged in the design, manufacture, and sale of products used in networking, telecommunications, high-speed data transmission, commercial aerospace, military, transportation, and consumer electronics. Products include magnetics (discrete components, power transformers and MagJack7 connectors with integrated magnetics), modules (DC-DC converters and AC-DC power supplies, integrated analog front end modules and custom designs), circuit protection (miniature, micro and surface mount fuses) and interconnect devices (micro, circular and filtered D Sub connectors, fiber optic connectors, passive jacks, plugs and high speed cable assemblies). The Company operates facilities around the world.

About Cosel

Cosel (www.cosel.co.jp/en/) is one of the world's leading power supply manufacturers offering high quality, ultra small AC-DC power supplies, DC-DC converters of the state-of-the-art technologies, and effective and easy-to-use noise filters. Headquartered in Toyama, Japan, Cosel offers outstanding technical support along with dependable delivery and quality.

Forward Looking Statements

Except for historical information contained in this press release, the matters discussed in this press release are forward-looking statements that involve risks and uncertainties. Among the factors that could cause actual results to differ materially from such statements are: the market concerns facing our customers; the continuing viability of sectors that rely on our products; the effects of business and economic conditions; difficulties associated with integrating recently acquired companies; capacity and supply constraints or difficulties; product development, commercializing or technological difficulties; the regulatory and trade environment; risks associated with foreign currencies; uncertainties associated with legal proceedings; the market's acceptance of the Company's new products and competitive responses to those new products; and the risk factors detailed from time to time in the Company's SEC reports. In light of the risks and uncertainties, there can be no assurance that any forward-looking statement will in fact prove to be correct. We undertake no obligation to update or revise any forward looking statements.