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    DigiKey Presents Factory Tomorrow Season 5 Video Series

    Samsung MLCCs Lineup for In-Vehicle Infotainment

    source: Samtec

    Best Practices for Cable Management in High-Speed and High-Density Systems

    Würth Elektronik Unveils Compact Common-Mode Data Lines Chokes

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    Ripple Steering in Coupled Inductors: SEPIC Case

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    DigiKey Presents Factory Tomorrow Season 5 Video Series

    Samsung MLCCs Lineup for In-Vehicle Infotainment

    source: Samtec

    Best Practices for Cable Management in High-Speed and High-Density Systems

    Würth Elektronik Unveils Compact Common-Mode Data Lines Chokes

    Bourns Releases TCO 240 Watt USB Mini-Breaker

    Littelfuse Adds 600W Automotive TVS Diodes for High-Energy Transient Protection

    Vishay Releases Harsh Environment Robust DC-Link Film Capacitor

    Bourns Releases Automotive High Creepage and Clearance Transformer

    Bourns Unveils Metal Powder Core High Current Low DCR Shielded Power Inductor

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    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

    How to Calculate the Output Capacitor for a Switching Power Supply

    Switched Capacitor Converter Explained

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Surface-mount fuses rate to 100 A in a single device

3.1.2018
Reading Time: 1 min read
A A

source: Electronic products news

Ultra-high current rating Littelfuse SMD fuse eliminates need to use parallel fuses or large devices.

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DigiKey Presents Factory Tomorrow Season 5 Video Series

Samsung MLCCs Lineup for In-Vehicle Infotainment

Best Practices for Cable Management in High-Speed and High-Density Systems

Circuit boards with high current demands, like blade servers, backplanes, and high-wattage power supplies, create challenges for developers incorporating circuit-protecting fuses. To use compact, surface-mount devices required the paralleling of multiple lower-current fuses or the use of larger, overcapacity industrial devices. The Nano2 881 series of fuses corrects the situation, offering ratings to 100 A in a 12.5 x 10 x 6.8-mm surface-mount device (SMD).

The 881 series devices are RoHS-compliant with robust operating characteristics. They have thermoplastic bodies that work in –55°C to 100°C operating environments, have cold resistance as low as 0.45 Ω, and exhibit a nominal voltage drop of under 85 mV. Their robust physical design also reduces their susceptibility to temperature cycling and vibration, enhancing system reliability.

The devices also have impressive electrical characteristics. With a 75-V operating voltage, they have a range of current ratings of 60 to 100 A. At 200% overload current, they interrupt within 60 s. With surge currents, they can protect against as much as 1,500 A without rupturing (interrupting rating).

Circuit boards handling high current while requiring high component density are candidates for use of the 881 series. Typical applications in the data center market include blade servers, server chassis, backplane boards, and line cards. Additional applications in the power system market include uninterruptible power supplies, base station power supplies, high-power battery systems, and power factor correction (PFC) in high-wattage power supplies.

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