MIL-PRF-32535 Base-Metal Electrode (BME) Ceramic Caps

KEMET's MIL-PRF-32535 surface mount capacitors are designed, tested, and screened to meet demanding high-reliability defense and aerospace applications. MIL-PRF-32535 is the Defense Logistics Agency's (DLA) first capacitor specification for defense and aerospace that capitalizes on industry-leading BME technology. Qualified under the performance specification MIL-PRF-32535 and QPL listed, this series meets or exceeds the requirements outlined by the DLA and is currently available in M (standard reliability) and T (high-reliability) product levels. Driven by the demand for higher capacitance and smaller case size MLCCs in high-reliability applications, the MIL-PRF-32535 series provides over an 18-fold increase in capacitance over MIL-PRF-55681 and MIL-PRF-123, allowing for reduced board space and continuing the trend for miniaturization.

In addition to being the first BME C0G and BP dielectric qualified for use in defense and aerospace applications, the MIL-PRF-32535 is the first DLA specification to recognize a flexible termination option. KEMET's flexible termination utilizes a pliable and conductive silver epoxy between the base-metal and nickel barrier layers of the termination system. The addition of this epoxy layer inhibits the transfer of board stress to the rigid ceramic body, therefore mitigating flex cracks which result in low IR or short circuit failures.