KYOCERA AVX CDR31BP121BKUS is a high-reliability (HI-REL) surface-mount ceramic capacitor. This component is designed for demanding applications requiring robust performance and stability. It falls within the Ceramic Capacitors category and is supplied in bulk packaging. The CDR31 series, known for its reliability, makes this capacitor suitable for critical systems. Its construction ensures consistent capacitance and low equivalent series resistance (ESR) across a wide operating temperature range. This component finds application in aerospace, defense, medical, and industrial control systems where component failure is not an option. Its precise characteristics and proven field performance make it an ideal choice for designers focusing on long-term system integrity and predictable operation.