High-temperature MLCCs

27 August 2014 Passive Components

New from AVX is a family of high-temperature multilayer ceramic chip capacitors (MLCC) rated for 250°C. Designed to accommodate the rapidly emerging military and commercial market demands for capacitors capable of high-reliability, long-lifetime performance at operating temperatures in excess of legacy 125°C requirements, the new AT series exhibits high current handling capabilities, high volumetric efficiency, high insulation resistance, and very low ESR and ESL.

Available in a wide range of sizes, values and voltages, in addition to two dielectrics and multiple termination options, the capacitors are designed to perform in the most demanding automotive, avionics, aerospace and energy applications.

Specifically, AT Series MLCCs are ideal for use as filters in the power electronics, switch mode power supplies and DC/DC converters designed into a broad range of automotive applications, including under hood, hybrid electric vehicle, engine control, sensor and timing circuit applications; avionics and aerospace applications, including transducer, engine control, spacecraft, flap and brake control, sensor and timing circuit applications; and energy applications, including down-hole oil exploration, logging while drilling, geophysical probe, seismic, geothermal, wind, solar, sensor and timing circuit applications.

Rated to 16 V and 25 V at 250°C and for operating temperatures spanning -55°C to +250°C, the MLCCs are available in both C0G (Class I) and VHT (Class II) dielectrics. The series includes capacitance values spanning 2200 pF to 1 μF with capacitance tolerances down to ±5%; ±10% and ±20% are also available.

Featuring two termination options (Pd/Ag and RoHS-compliant 100% Sn plated) and case sizes ranging from 1206 to 2225, the AT series parts are available on 7” or 13” reels or in bulk. Future expansions of the series are to include higher CV, higher voltage and automotive qualified components.

For more information contact Yolandi de Beer, Avnet Kopp, +27 (0)11 319 8600, yolandi.debeer@avnet.eu, www.avnet.co.za

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