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Bel Fuse

- The Bel Fuse circuit protection portfolio includes one of the broadest ranges of circuit protection products on the market today. Bel Fuse has been at the forefront of the industry shift to board level, surface mount, fuse designs, including our C2Q Chip Fuses with 0603 footprint. Many of today’s smaller hand held devices incorporate this newer technology and Bel Fuse is poised to help!

The circuit protection offering also includes PCB mount 277V radial fuses, as well all standard glass and ceramic cartridge fuses including axial leaded board mounted options. Bel Fuse also offers a complete product offering in PPTC resettable fuses. And, in addition to the standard products, Bel Fuse offers a wide range of value-add options to facilitate more efficient assembly on the production line. Related product brands include: Bel, Bel Power Solutions, Cinch Connectivity Solutions, Signal Transformer, Stewart Connector, TRP Connector.

Circuit Protection Portfolio

Image of Bel Fuse's Circuit Protection Portfolio

The Bel Fuse circuit protection portfolio includes one of the broadest ranges of circuit protection products on the market today. Learn More

LAN Discrete Transformer Modules

Image of Bel Fuse Inc's LAN Discrete Transformer Modules

Bel Fuse, Inc.'s LAN transformer modules are designed for most popular 10/100 Base TX and Gigabit Ethernet transmission data standards over copper LANs. Learn More

MagJack Integrated Connector Modules

Image of Bel Fuse MagJack Integrated Connector Modules

Bel Fuse's MagJack® integrated connector module (ICM) product-line is Bel Fuse and Stewart’s premier family of products for Ethernet networking applications. Learn More

Image of Bel's Latest Products

Featured Products

Image of Bel Fuse Inc's Brick SMT Fuse Portfolio

Brick SMT Fuse Portfolio

Bel Fuse presents surface mount, ceramic tube/end cap fuse constructions, with U.S. (UL/CSA), Europe (VDE/Semko), China (CCC), and Japan (PSE) safety agency approvals. Learn More

Image of Bel Fuse Inc's RJS Series Telecom Power Cross and Ballast Protection

RJS Series Telecom Power Cross and Ballast Protection

The RJS series fuses from Bel Fuse, Inc. are primarily intended for use as a cost effective solution for telecommunication circuit applications that require low-current protection with high-surge tolerance and must comply to test requirements according to UL/IEC1950/60950 and Telcordia GR1089, Issue 3. Learn More

Newest Products View All (40)

10GBASE-T MagJack® Integrated Connector Modules

Bel Magnetics Solution's 10GBASE-T MagJack® connector modules fill the need for high-speed ICMs in smaller systems requiring faster Ethernet connectors.

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Image of Bel Magnetic Solutions MagJack® ICM 1GBase-T

Automotive Ethernet Compatible 1GBase-T MagJack® ICM

Bel Magnetic Solutions' 1GBase-T MagJack ICM is designed for next-generation vehicles that utilize Ethernet signaling inside the automobile.

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Image of Bel Fuse 0678H Series Enhanced Breaking Capability 3912 Sized Fuse

Enhanced Breaking Capability 3912 Sized Fuse – 0678H Series

Bel Fuse's 0678H series, 500 mA through 40 A, offers high-amp circuit protection and a compact surface-mount form factor to save board space.

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Image of Bel Fuse 0678D Series Fast Blow SMT Fuse

Fast Blow 350 V 3912 SMT Size Fuse – 0678D Series

The fast-acting 0678D series from Bel Fuse has an even higher voltage rating at 350 VAC and ultra-high interrupting ratings (up to 2000 A at 125 VDC).

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BEL Power Protect Connec

Power, Protect, Connect

Bel Solutions are involved in design, manufacture and sale of product in applications concerning circuit protection, connectivity, magnetics, power and more.

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Image of Bel Fuse 0ADHC Series Digital Multimeter Cartridge Fuses

Digital Multimeter Cartridge Fuses - 0ADHC Series

Bel Fuse’s 0ADHC series expands its product offering into distance measuring instrument (DMI) and digital multimeter (DMM) circuit protection.

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Tools and Support

Image Bel Fuse's Circuit Protection Focus Catalog

Circuit Protection Focus Catalog

Provides overview of Bel Fuse Circuit Protection Portfolio. Learn More

Image of Bel Fuse's Fuse Cross Reference

Fuse Cross Reference

Competitive part numbers and Bel Fuse fuse equivalents. Learn More

Image of Bel Fuse's Fuse Terminology

Fuse Terminolgy

Product definition and fuse de-rating guide. Learn More

Image of Bel Fuse's Selection User Guide

Fuse Safety Selection / User Guide

Circuit protection considerations for 3rd party safety certification. Learn More

Image of Bel Fuse's I2T Explanation

I2t Test Methods and Data Presentation

How to properly select a fuse based on I2t values from different fuse manufactures. Learn More

Image of Bel Fuse's PTC Resettable Fuses Cross Reference

PTC Resettable Cross Reference

Competive part number compare and Bel Fuse PTC equivalents. Learn More

Product Training Modules View All (4)

ICM

Integrated Connector Module, ICM

Duration: 10 minutes

ICM is a single module made of a combination of magnetic and discrete components, which eases the conversion from the physical layer to the physical media.

ARJ45

ARJ45 Category 7a Modular Connector System

Duration: 10 minutes

The ARJ45 connector system was designed for high performance Category 7a and Class Fa systems.

EPP918

Modular Jack EPP-918A Environmental Protection Gel

Duration: 5 minutes

EPP-918A Compound helps prevent corrosion due to harsh environments and usage, is RoHS6 compliant, and contains a UV tracer to assist in visual inspection.

MagJack® Integrated Magnetics Modular Jacks

MagJack® Integrated Magnetics Modular Jacks

Duration: 15 minutes

The MagJack family of highly integrated Ethernet connector modules offer design flexibility, RoHS compatibility, reliability, and manufacturing testing methods.

Featured Videos View All (7)

Bel Magnetic Solutions Auto Ethernet MagJack | Digi-Key Daily

Bel Magnetic Solutions presents a first of its kind 1GBase-T MagJack ICM designed for next-generation vehicles that utilize Ethernet signaling inside the automobile.

Publish Date: 2018-08-16

Bel Fuse MagJacks ICM | Digi-Key Daily

MagJack® from Bel Fuse integrated connector module (ICM) product-line is Bel Fuse and Stewart’s premier family of products for Ethernet networking applications, ranging from 10/100 BaseT to 10 GBaseT, to PoE(plus).

Publish Date: 2017-08-22

Bel Powerline Communication Modules | Digi-Key Daily

Bel Fuse's power module provides an integrated solution for powerline communications with the “black box” design that requires no external software and only a few external components to create a working solution.

Publish Date: 2017-05-17

Bel ABC/MBC Low-Profile Series Power Supplies | Digi-Key Daily

Bel Power Solutions offer its ABC and MBC series of low-profile, AC-DC / DC-DC, open-frame power supplies.

Publish Date: 2016-12-14

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