Dielectrics.The FN31X103K500PXG manufactured by Prosperity Dielectrics is a multilayer ceramic capacitor (MLCC) with a SMD/SMT 1206 package. It is RoHS compliant, meaning it does not contain any hazardous materials, and has a capacitance value of 1,000 picofarads (pF). Additionally, it has a working voltage of 50V, a dielectric of X5R, and an operating temperature of -55°C to +125°C. It can be used in a variety of applications, such as filters, timing circuits, decoupling capacitors, and more.