Space-qualified ceramic capacitors cut size and weight

January 16, 2014 // By Graham Prophet
AVX’s BME (base-metal electrode, as opposed to precious-metal electrode types, PME) MLCCs exhibit superior CV capabilities compared to conventional PME MLCCs, enabling reductions in board space and total component weight while maintaining space-level performance

These space-level, base metal electrode (BME), X7R dielectric MLCCs provide higher capacitance values in significantly smaller cases sizes, reducing both board space and total component weight, which are especially critical in space applications, while maintaining the high reliability performance required by the space industry. The new surface mount, BME MLCCs also feature Sn/Pb plating with Flexiterm terminations, which provide enhanced resistance to mechanical stress by allowing for more than twice as much board flexure as standard terminations.

Qualified on the European Space Association’s (ESA’s) European Preferred Parts List (EPPL II) under the criteria of the European Space Components Coordination’s (ESCC’s) specification 3009, AVX’s space-level BME MLCCs are rated for 16-100V and 2.2 nF to 8.2 μF, are available in case sizes spanning 0603-1812, and, in addition to space applications, are also sutiable for use in a range of high-reliability aviation and military applications. The devices, included in a line expansion that incorporates case sizes 0402-2220, are also currently being evaluated for approval on the ESCC’s Qualified Parts List (QPL) qualification process.

Space-level, BME MLCCs are available in three capacitance tolerances (±5%, ±10%, and ±20%) and with three ESCC lot acceptance testing (LAT) levels.