CL21A476MQYNNNG

The CL21A476MQYNNNG is a multilayer ceramic capacitor (MLCC) manufactured by Samsung, representing a widely-used component in modern electronics assembly. This capacitor belongs to the CL21 series, which is designed for general-purpose filtering, decoupling, and energy storage applications across consumer, industrial, and commercial electronic equipment. Multilayer ceramic capacitors like this component are fundamental building blocks in power supply circuits, signal processing stages, and noise suppression networks. The CL21 series is particularly common in applications requiring compact board-level integration, including audio equipment, telecommunications hardware, industrial control systems, power management circuits, and portable consumer devices. These capacitors function to smooth voltage ripple, block DC while passing AC signals, and provide localized energy storage near integrated circuits and power conversion stages. The part number structure indicates this is a surface-mount device in a standardized package format optimized for automated assembly. Samsung's CL21 series capacitors are constructed using multilayer ceramic technology, which provides excellent volumetric efficiency and reliable performance across a broad operating range. This construction approach allows manufacturers to achieve higher capacitance values in smaller physical footprints compared to older through-hole technologies. Engineers typically specify this exact part when they require a proven, second-source component with established supply chain reliability and manufacturing consistency. Samsung's capacitors in this series maintain tight quality control and are widely qualified in industrial applications where component longevity and predictable performance are critical. The CL21A476MQYNNNG designation breaks down to identify specific electrical characteristics within the series—the "476" coding indicates the capacitance value within Samsung's standard marking system, while the suffix letters specify the dielectric material, voltage rating, and packaging configuration. When selecting between available alternatives, design engineers consider several factors: the specific voltage and capacitance requirements of their circuit stage, the available PCB real estate, operating temperature constraints, and the need for components with established long-term reliability data. Samsung's established reputation in the MLCC market, combined with the proven performance history of the CL21 series in demanding industrial environments, makes this part a preferred choice for applications where component failure could disrupt critical processes. This capacitor is suitable for designers working in industrial automation, power electronics, telecommunications infrastructure, and equipment requiring stable, long-term performance in temperature-variable environments.