Bel Power Solutions . September 18, 2017

Bel Power Solutions Announces New SLDM Tunable Loop™ Non-Isolated DC-DC Converter

Low Profile Converter is Ideal for Height Sensitive Applications

Santa Clara, CA [September 18, 2017] Bel Power Solutions, a Bel group company (NASDAQ: BELFA and BELFB) and premier global manufacturer of power management devices, announces the new SLDM Tunable Loop™ SLDM-06D1Ax and SLDM-12D1Ax modules, which are ultra-low profile, non-isolated DC-DC converters that deliver up to 6A and 12A with maximum flexibility of being mounted on the top side or bottom side of the host PCB.

The SLDM modules fit into the smallest, tightest spaces (only 2.8mm high, less than the combined height of 2 pennies!). They can be mounted in areas on the top side where ultra-low profile is required either due to airflow impeding issues or mechanical interference issues, or they can be mounted on the PCB bottom side to save top side real estate. Both modules can be used on bottom side reflow applications, underneath boards, mezzanine and in very dense power applications. The PMBus on board allows power system architects to control the power train using a 3-wire interface (data, clock and GND). Other features include a Power Good signal, fixed switching frequency, output overcurrent protection (non-latching), overtemperature protection, a remote on/off and ability to sink and source current.

Operating over a wide input voltage range (Vin = 3 Vdc - 14.4 Vdc), SLDM modules provide a precisely regulated output voltage from 0.45 Vdc to 5.5 Vdc. Programmable via an external resistor, they have a DOSA-standard footprint and are pin-to-pin with the GE SlimLynx™ Series. Typical applications include distributed power architectures, intermediate bus voltage applications, telecommunications equipment, server/storage/networking applications and industrial equipment.

The SLDM Tunable Loop™ product is in stock with Mouser and Digi-Key (beginning 2018). For more detailed information, download the Bel Power Solutions datasheets for SLDM-06D1Ax and SLDM-12D1Ax or visit belfuse.com/power-solutions.

About Bel

Bel (www.belfuse.com) designs, manufactures and markets a broad array of products that power, protect and connect electronic circuits. These products are primarily used in the networking, telecommunications, computing, military and aerospace, transportation and broadcasting industries. Bel’s product groups include Magnetic Solutions (integrated connector modules, power transformers, power inductors and discrete components), Power Solutions and Protection (front-end, board-mount and industrial power products, module products and circuit protection) and Connectivity Solutions (expanded beam fiber optic, copper-based, RF and RJ connectors and cable assemblies). The Company operates facilities around the world.

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 statement.

Media Contact: Susan Rawlish, susan.rawlish@belf.com