The 0805N121J201CT is a 120pF, +-5%, 200V, Multilayer Ceramic Capacitor (MLCC) manufactured by Walsin. It is a surface mount (SMD/SMT) device and is part of their 0805N series. This capacitor is designed for use in high-temperature, high-voltage, and high-frequency applications. The 0805N121J201CT is a high-performance MLCC with superior insulation, flashrom, high stability, and low ESR. Its small size allows for easy integration into devices without taking up too much space, making it an ideal choice for many electrical designs.