Back to top

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 (37)

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.

Learn More
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.

Learn More
Image of Bel Magnetic Solutions Single-Port Magnetic Modules and Jacks

Power Over Ethernet NBASE-T/802.3bz Magnetic Modules & Jacks

Bel Magnetic Solutions' 60 W 4-pair, Power over Ethernet (PoE) Magnetic Modules and Magjacks® allow customers to upgrade existing 1GBase-T PoE products.

Learn More
Image of Bel Fuse's High Voltage 600 V and 1 K VAC/VDC 6.3 mm x 32 mm Fuses 0ADAx and 0ADBx Series

High Voltage 600 V and 1 K VAC/VDC 6.3 mm x 32 mm Fuses - 0ADAx and 0ADBx Series

Bel Fuse's 0ADAx and 0ADBx series 600 V and 1 K VAC/DAC rated fuses are designed for high energy and high power applications.

Learn More
Image of Bel Fuse's Low Profile DC/DC DOSA 6 A and 12 A Converters - SLDM Series

Low Profile DC/DC DOSA 6 A and 12 A Converters - SLDM Series

Bel's SLDM-06D1Ax and SLDM-12D1Ax DC/DC converter modules deliver up to 6 A and 12 A output current and a very low profile converter.

Learn More
Image of Bel Power Solutions' Isolated DC/DC Converter 200 W Quarter Brick - 0RQB-D0W12L

Isolated DC/DC Converter 200 W Quarter Brick - 0RQB-D0W12L

Bel Power Solutions’ 0RQB-D0W12L isolated DC/DC converter provides up to 200 W of output power from a wide input range (72 V, 96 V, and 110 V typical).

Learn More

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.

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.

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.

Featured Videos View All (6)

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).

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.

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.

Bel Fuse 0659C and 0659P Time-Lag Fuses | Digi-Key Daily

Bel Fuse's 0659C and 0659P time-lag fuses are high surge, high capacity ceramic fuses ideal for power supply and power adapter applications.

Manufacturer Web site