The 0201N3R0B500CT is a three-pin Multilayer Ceramic Capacitor (MLCC) made by Taiwanese manufacturer Walsin. Its attributes include an SMD/SMT, a capacitance of 3pF (picofarad), and a voltage rating of 50V. This part is also RoHS compliant—RoHS stands for Restriction of Hazardous Substances, and products that are deemed compliant must meet certain, predetermined guidelines. This capacitor is classified as a 0201 size, which is the smallest size of MLCCs. With a maximum total height of 0.40mm and a length of 0.60mm, these capacitors are the perfect choice for mounting on miniature, surface-mounted components.