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AVX Releases New SPICE Models for its CapGuard™ Automotive & TransGuard® Automotive Series Varistors

The new SPICE models allow engineers to accurately simulate & fine-tune the performance of these protective parts in their circuits, enabling shorter, more cost-effective automotive device development cycles

FOUNTAIN INN, S.C. (July 10, 2017) – AVX Corporation, a leading manufacturer and supplier of passive components and interconnect solutions, has released new SPICE models for its CapGuard™ Automotive and TransGuard® Automotive Series multilayer varistors. Designed to enable shorter, more cost-effective development cycles with more first-pass prototype successes, SPICE models allow electronic design engineers to quickly, easily, and effectively evaluate the integrity of circuit designs, accurately simulate their performance, and identify and correct potentially problematic properties, including parasitic resistances and capacitances.

“The new SPICE models for our TransGuard and CapGuard Automotive Series varistors allow engineers to accurately estimate the performance of these parts in their circuits without waiting for a physical sample to arrive and also allow them to quickly swap out similar components to fine-tune circuits prior to specification, which is especially important in the quality- and cost-conscious automotive designs that these components are designed for,” said Colin Leath, field applications engineer at AVX.

AVX’s surface-mount CapGuard Automotive Series combines multilayer varistor (MLV) and high-capacitance, temperature-stable, X7R multilayer ceramic capacitor (MLCC) technology in a single, high-reliability device that exhibits bi-directional transient voltage protection, excellent EMI/RFI attenuation over a wide frequency spectrum, and multiple-strike capabilities. Qualified to AEC-Q200, CapGuard varistors feature a compact form factor especially designed to preserve board space, exhibit exceptional current and energy handling capabilities, and are ideally suited to protect sensitive electronics from high-voltage transients, as well as to filter out high-frequency EMI/RFI noise generated by switch mode power supplies, motors on DC lines, I/O lines in electronic circuits, inductive switching, relays, and other applications.

AVX’s surface-mount TransGuard Automotive Series is comprised of zinc-oxide-based ceramic semiconductor devices with non-linear, bi-directional voltage-current (V–I) characteristics similar to those of back-to-back Zener diodes. TransGuard varistors provide bi-directional overvoltage protection and EMI/RFI attenuation in a single, small SMT package, as well as exhibit high current and energy handling capabilities, sub 1nS response times to ESD strikes, multiple-strike capabilities, high reliability performance, and high energy absorption/load dump. Qualified to AEC-Q200, the series is ideal for use in commercial and passenger vehicles with internal combustion and hybrid electric engines.

The new SPICE models for AVX’s CapGuard Automotive and TransGuard Automotive Series varistors are compatible with any text-based SPICE simulator and are available for download, free of charge, on AVX’s Design Tools page.

For more information about AVX, please visit www.avx.com, call 864-967-2150, or write to One AVX Boulevard, Fountain Inn, S.C. 29644.

About AVX

AVX Corporation is a leading international manufacturer and supplier of electronic passive components and interconnect solutions with 20 manufacturing and warehouse facilities in 11 countries around the world. AVX offers a broad range of devices including capacitors, resistors, filters, timing and circuit protection devices, and connectors. The company is publicly traded on the New York Stock Exchange (NYSE:AVX).

A member of the Kyocera Group since 1990, AVX is also the only company authorized to supply Kyocera’s electronic devices to the Americas and Europe. Established in 1959 and based in Kyoto, Japan, Kyocera Corporation is a leading international supplier of connectors, capacitors, ceramic resonators, surface acoustic wave (SAW) filters and duplexers, and crystal oscillators and timing devices.

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