Bel Launches New 65W GaN-Based AC-DC Power Supplies with Ultra-Compact Footprint

Santa Clara, CA. [October 29, 2025] Bel Fuse Inc., a leading global manufacturer of products that power, protect, and connect electronic circuits, today introduced two new 65W open-frame AC-DC power supply series to the Bel Power Solutions portfolio. The MDP65, for medical applications, and HDP65, for industrial and ITE, both use Gallium Nitride (GaN) technology to improve performance and enable more compact designs.

The new series delivers leading power density and efficiencies in a space-saving form factor at 1x3 inches. The compact footprint offers a 50% real estate savings compared to devices 2x3 inches, allowing for greater capacity per unit in lower-powered applications. The series offers two mechanical mount options, including PCB mount or open frame.

Engineered for the medical market, the new MDP65 series is cost-effective while prioritizing critical safety. Compliant with the rigorous IEC/EN 60601-1 safety standard, it features 2xMOPP isolation and is suitable for Type BF medical applications. Its wide operating temperature range of -20°C to 70°C ensures reliable performance, even when incorporated into compact, tightly sealed diagnostic or portable monitoring units where heat dissipation is a challenge.

The entire series, designed and manufactured by the Bel Mumbai team, offers a favorable Cost of Ownership (COO) over time compared to similar components. The new HDP65 and MDP65 series are also safety agency certified, meeting the latest regulatory requirements with UL and Nemko approvals.

"By leveraging GaN power technology, we've achieved both high efficiency and a smaller footprint without sacrificing safety," said [Ian Warner, Director of Business Development]. "This new compact form factor is a unique addition to our portfolio, driving increased power density for lower-powered applications, which is essential for our customers in the medical and industrial markets."