AVX extends customisation options for SMPS MLCCs

8th May 2014

AVX

Nat Bowers

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Datasheet

Enabling engineers to achieve higher efficiency, space-saving designs with enhanced mechanical and thermal reliability, AVX has made several new customisation options available for its SMX series Stacked SMPS MLCCs. These options include custom geometries, packages, terminals, lead configurations, and stress relief mounting options.

Additional benefits available through customisation include wholly eliminating soldering requirements by enabling direct electrical and mechanical connection to the circuit and eliminating the risk of thermal shock by enabling remote soldering further from the ceramic capacitor case.

SMX series MLCCs exhibit excellent high frequency performance and high current handling capabilities in addition to low ESR, ESL, and DC leakage. Available with voltage ratings of 25-500V, capacitance values up to 270µF, and both C0G and X7R dielectrics, SMX series MLCCs also exhibit rugged mechanical shock and vibration capabilities and a wide frequency response in high pulse, high current, and high temperature applications up to +200°C.

Constructed using high temperature solder to ensure reliable operation in harsh environments, SMX series MLCCs are suitable for down-hole oil exploration, including logging while drilling and geophysical probes, in addition to a variety of space, aerospace and underhood automotive applications. The series is also well suited for DC filtering in high power, high frequency motor drives, high pulsed-current circuitry and a range of low power electronics.

AVX’s SMX series MLCCs are included in the component catalogue of its SpiCalci 8.0 modeling software, which allows design engineers to quickly and easily simulate performance characteristics for output data including: temperature vs. applied current, ESR and impedance vs. frequency, maximum current vs. frequency, maximum ripple voltage vs. frequency and phase angle vs. frequency.

Stan Cygan, Senior Applications Engineer, AVX, comments: "The customisation solutions now available for our SMX series MLCCs maintain the high reliability performance of the products originally developed by AVX and historically recognised as the highest reliability product in the market while also satisfying customer specific design requirements. In addition to eliminating reliability concerns in the next level assembly, our customisable SMX series components also exhibit high current handling capabilities, exceptional capacitance retention with frequency and extremely low ESR.”