This KYOCERA AVX CDR31BP391BJUM is a High-Reliability (HI-REL) surface-mount multilayer ceramic capacitor. It is designed for demanding applications where robust performance and extended operational life are critical. The CDR31 series offers excellent stability across temperature variations and a low dissipation factor, making it suitable for signal coupling, decoupling, and filtering functions in aerospace, defense, and high-performance industrial systems. Its construction ensures consistent capacitance values and low equivalent series resistance (ESR). This component is supplied in bulk packaging.