Bel Fuse Inc. - Bel, a driving force in the future of global connectivity, manufactures quality components for the computer, networking and telecommunications industries. Partnered with these markets' leaders, the Company engineers devices for those next-generation technologies which enable high-speed communication. Our ever-expanding portfolio, broadened by the acquisition of the Passive Components Group of Insilco Technologies, including InNet Technologies, Stewart Connector, TRP Connector B.V., Signal Transformer, and Cinch Connectors, now offers an even wider range of synergistic products. From circuit protection devices to power conversion modules...transformers to connector modules and integrated line interference components...design engineers and purchasing personnel alike benefit from Bel's extensive array of products and solutions.
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 Digi-Key’s library of more than 1700 exclusive PTM Online… On Demand® product training modules is a collection of training tools created with you – the busy design engineer – in mind. They are provided with the cooperation of participating supplier partners. From this one source, you can learn about the latest products and technologies, download datasheets, check inventory, contact our technical staff, and place an order for same-day shipment.
These modules are available in audio and non-audio formats and listed by supplier in easy-to-find alphabetical order. Simply locate the module that interests you and click on your format of choice. We hope you find these tools useful, and with new modules added continuously, we invite you to stop back often to see what’s new.
Product Training Modules Online...On Demand® is a registered trademark of Digi-Key Corporation.
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 | | RJ45 Copper SFP Transceiver Modules - Bel Fuse Inc.'s RoHS-compliant transceiver module is able to access the physical layer IC (PHY) via I2C interface. Additionally, the device features Baseline Wander correction to recover data in a worst-case network environment, and an automatic medium-dependent interface crossover (auto-MDIX) feature. In 1000BASE-T and 100BASE-TX modes, the transmit data stream is scrambled to reduce radiated emissions and to ensure that there is no correlation between symbols in the data stream.
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 | | 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. The fuses provide board-level primary and secondary circuit protection in a wide variety of applications, including battery chargers, power supplies, modems, routers, consumer electronics, PoE, PoE+, and Backplane Short Circuit Protection, among others. The SMP Type provides Lightning Surge Withstand and 600 VAC Power Cross Protection.
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 | | Tunable Loop™ SLIN Series DC-DC Converters - The Tunable Loop™ Series power modules from Bel Fuse are non-isolated, Point of Load (POL) DC-DC converters that deliver up to 50 A of output current in pick-and-placeable, surface-mount packages, ranging in size depending on output current capability. The modules operate over a wide 2.4 V to 14 V input voltage range and provide a precisely regulated output voltage from 0.6 V to 5.5 V.
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 | | Circuit Protection Portfolio - 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.
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Bel Closes Acquisition of TE Connectivity’s Transpower Magnetics BusinessBel Completes Acquisition of Cinch Connectors for $39 Million - January 29, 2010More about Bel Fuse Inc.Building on over 50 years of solid financial performance, and trading on the Nasdaq (BELFA and BELFB), we continue to grow and prosper by employing the latest high volume manufacturing technologies at our ISO 9001 facilities throughout the world. We attribute our success to an unmatched dedication to superior customer service and technical support, together with the utmost in cost-effective solutions. Bel's products, available through a global network of representatives and distributors, include:
- Connectors - Bel Stewart Connectors & TRP Connectors, ICMs for 10/100/1000Base-T and VoIP use, plus Category 5 and Category 6 modular jacks and connectors.
- Power Modules - Full lines of DC/DC converters, for 2.5V to 48V and 1A to 200A applications, provide high efficiency in small packages.
- Broadband Modules - Integrated components for xDSL (CO and CPE options), Powerline, T1/E1/J1 and ISDN employment optimize leading ICs' performance.
- Discrete Magnetic Components - for xDSL, T1/E1/J1, Gigabit Ethernet, 10/100Base-T, HomePNA, VoIP, and cable modem applications.
- Circuit Protection Devices - Wide array of miniature and micro fuses, together with SIP modules, meet UL, CSA, SEMKO MITI and VDE standards.
- Signal Transformer Products - Signal Transformer's UL, VDE and CSA Certified complete portfolio of standard and custom power transformers.
- Cinch Connectors Products – reliable, high quality connectors Jones/J plugs and sockets, RF, barrier, ModICE, and NX and QSFP+ cable assemblies to name a few.
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