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- Bel and its groups 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 MagJack™ 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, surface-mount and PPTC resettable fuses) and interconnect devices (micro, circular and filtered D-Sub connectors, fiber optic connectors, passive jacks, plugs, radio frequency (RF), microwave connectors and high-speed cable assemblies). The company operates facilities around the world. Related product brands include: Bel Fuse, Bel Power Solutions, Cinch Connectivity Solutions, Signal Transformer, Stewart Connector, TRP Connector.

Power Solutions

Bel Power Solutions

Bel has one of the world’s largest power conversion and power management solutions portfolio for AC/DC & DC/DC applications. Learn More

Protection Solutions

Image of Bel's Circuit Protection Family

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

Connectivity Solutions

Bel Connectivity Solutions

Bel’s Connectivity brands offer a diverse line of high quality, high performance connectors, and cable assemblies. Learn More

Product Listing View All

Image of Bel's Latest Products

Featured Products

High Frequency SMA End Launch Connectors

High Frequency SMA End Launch Connectors

Cinch Connectivity Solutions' high frequency end launch connectors are used to transition microwave energy from coaxial to planar transmission line structures. Learn More

Image of Bel Fuse MagJack Integrated Connector Modules

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, ranging from 10/100 BaseT to 10 GBaseT, to PoE(plus). Learn More

Newest Products View All (143)

Image of Bel Fuse 0ZSC Series Battery Strap PTC Fuse

0ZSA/0ZSC Series Battery Strap PTC Fuses

Bel Fuse's 0ZSA and 0ZSC series axial lead battery strap PTC fuses are designed for use in rechargeable battery packs, lithium cell, and battery packs.

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Image of Bel's CAT5E/CAT6/CAT6A Tool-less Keystone Jacks and Couplers

CAT5E/CAT6/CAT6A Toolless Keystone Jacks and Couplers

Bel's CAT5E, CAT6, and CAT6A toolless Keystone jacks and couplers consist of shielded and unshielded versions with 50 µ" of gold on the contacts.

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Image of Bel Fuse's SMT 2016 Size Low Profile PTC Resettable Devices – 0ZCN Series

SMT 2016 Size Low-Profile PTC Resettable Devices - 0ZCN Series

Bel Fuse's unique polymer formulation PTC devices offer circuit protection with an added resettable feature in low-profile, SMT 2016 size package.

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Image of Bel Fuse's 10GBASE-T MagJack® Integrated Connector Modules

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 TRP Connector Industrial Ethernet MagJack® ICMs

Industrial Ethernet MagJack® ICMs

TRP Connector industrial Ethernet MagJack® ICMs satisfy the growing demand for integrated connectors used in operating robots and machines on the factory floor.

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Image of Cinch Connectivity Solutions' High-Temperature Dura-Con™ Micro-D 175°C Plug and PCB Connectors

High-Temperature Dura-Con™ Micro-D +175°C Plug and PCB Connectors

Cinch Connectivity Solutions’ highly reliable Dura-Con™ Micro-D +175°C plug and PCB connectors for military, oil, and gas applications.

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Tools and Support

Image of Cinch's Type N Connectors

Type N Connectors

Johnson® Type N Connectors meet or exceed the performance requirements of MIL-PRF-39012. All designs are based on 50 ohm system impedance per MIL-STD-348, and operate at frequencies up to 11 GHz minimum. Learn More

Image of Cinch's RJ45 D38999 Series

C-RJFTV Series

Bringing the combined technical expertise and engineering capabilities of Cinch’s rugged D38999 shell and Stewart’s high performance RJ45, the RJ45 D38999 provides Ethernet connectivity in harsh environments. Learn More

Image Bel Fuse's Circuit Protection Focus Catalog

Circuit Protection Focus Catalog

Provides overview of Bel Fuse Circuit Protection Portfolio. Learn More

Image of Signal Transformer's Linear Transformers

Linear Transformer At-A-Glance

Provides overview of Signal Linear Transformer Portfolio. Learn More

Image of Bel Power's OpenFrame Brochure

Open-Frame Product Selection Guide

An overview of Bel Power Solutions newest Open-Frame power solutions. Learn More

Image of Bel Power's Product Highlights

Product Highlights

A general overview of the intelligent, efficient and reliable power conversion devices provided by Bel Power Solutions. Learn More

Product Training Modules View All (14)

Image of Signal Transformer SMD Inductor

Surface Mount Inductors (SMD) for Lighting

Duration: 5 minutes

An introduction to Signal's line of SMD Inductors for Lighting, including an overview of applications and markets, as well as safety and technology features incorporated into the series.


EcoTran Standard Series Transformers

Duration: 10 minutes

This presentation will provide an introduction to Signal's line of EcoTran Standard Series Transformers.

Image of Bel Power Solutions DIN Rail Power Supply

DIN Rail AC-DC and DC-DC Power Supplies

Duration: 10 minutes

DIN Rail power supplies are commonly specified for industry equipment, test and measurement equipment, wireless communications, renewable energy, instrumentation, robotics and automation applications.

Image of Bel Power Melcher AC-DC Power Converters

Railway and Harsh Environment Products

Duration: 10 minutes

MELCHER products are designed to meet the highest national and international standards for harsh environments

Featured Videos View All (18)

Cinch Connectivity Solutions Semflex Brand of RF/Microwave Cables, Cable Assemblies and Connectors

Semflex has been offering a large selection of RF/Microwave cables, cable assemblies, and connectors since being founded in 1978. The high performance, low attenuation flexible bulk cables are all designed and manufactured in its facility.

Publish Date: 2018-10-22

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 Power Solutions Data Center and Open Compute OCP Solutions

Bel Power Solutions offers a full suite of OCP power conversion products that meets the needs of performance, efficiency, and reliability of power systems for data centers.

Publish Date: 2018-06-25

Cinch Fixed Length RF Cable Assemblies | Digi-Key Daily

Cinch Connectivity Solutions is proud to partner with Digi-Key to offer a wide selection of Fixed Length Coax Cable assemblies.

Publish Date: 2018-05-15

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