CL03B221KO3NNNC

The CL03B221KO3NNNC is a multilayer ceramic capacitor (MLCC) manufactured by Samsung, representing a widely-used passive component in modern electronics. This component belongs to Samsung's established capacitor portfolio and is designed to meet the needs of industrial and consumer applications requiring reliable energy storage, filtering, and signal conditioning. Multilayer ceramic capacitors like this part function by storing electrical charge across multiple internal ceramic layers, enabling compact size with relatively high capacitance values. The component uses a ceramic dielectric material that allows engineers to achieve significant capacitance in a small physical footprint, making it essential in space-constrained applications where traditional electrolytic capacitors cannot fit. The part number coding indicates this is a 0603-sized component, which refers to the physical dimensions in hundredths of an inch (0.06" × 0.03"). This compact surface-mount package has become an industry standard, offering a balance between handling ease during assembly and space efficiency on printed circuit boards. The 0603 form factor remains one of the most commonly specified sizes in electronics manufacturing, particularly in applications where moderate capacitance values are needed without excessive board real estate consumption. Typical applications for components in this category include power supply filtering, signal coupling and decoupling, EMI suppression, and high-frequency circuit tuning. Engineers frequently specify MLCCs in bypass networks to filter power distribution noise, in coupling circuits to block DC while passing AC signals, and in RF and analog circuits where stability and low parasitic effects are important. They are also commonly found in consumer electronics, telecommunications equipment, automotive systems, and industrial control boards. Engineers might select this specific Samsung part for several reasons. Samsung's capacitors are recognized for consistent quality and reliability across production batches, which is critical in applications where component failure could cause system downtime or require costly rework. The 0603 package size offers compatibility with standard assembly equipment and processes, reducing manufacturing complexity. Additionally, Samsung maintains broad distribution channels, making components in this series readily available for both prototype development and high-volume production runs. The MLCC category as a whole offers excellent frequency response characteristics, minimal equivalent series inductance compared to larger components, and the ability to operate across wide temperature ranges typical of industrial environments. These characteristics make MLCCs indispensable in modern circuit design, where filtering requirements and board space constraints make alternative solutions impractical.