GRM21AR72E472KW01D

The GRM21AR72E472KW01D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading producers of passive electronic components. This capacitor is designed for use in a wide range of consumer, industrial, and automotive electronics applications where reliable energy storage and filtering are required. This component belongs to Murata's GRM series of general-purpose MLCCs, which are widely specified in circuit designs requiring compact form factors and consistent performance across operating conditions. The part number encoding indicates this is a 0805-sized capacitor, a standard metric package measuring approximately 2.0mm by 1.25mm, making it suitable for surface-mount assembly on modern printed circuit boards with high component density. MLCCs function as energy storage and signal filtering elements in electronic circuits. They are commonly used for decoupling power supply noise near integrated circuits, filtering high-frequency interference, timing circuit applications, and coupling or blocking DC signals in amplifier stages. The GRM21AR series is particularly popular in applications requiring stable capacitance performance across temperature variations, making these capacitors suitable for industrial control systems, power management circuits, telecommunications equipment, and consumer electronics. The "AR" designation in the part number indicates this capacitor uses a specific dielectric formulation optimized for general-purpose applications. Murata's GRM21AR series capacitors are engineered to provide predictable electrical behavior, making them suitable for designs where engineers need reliable, proven component performance rather than specialized high-voltage or high-temperature variants. Engineers typically specify this exact part number when designing circuits requiring a capacitor that balances several factors: the 0805 package size offers adequate lead spacing for modern automated assembly while remaining hand-solderable if needed, the GRM21AR dielectric provides stable performance in standard industrial temperature ranges, and Murata's manufacturing quality ensures consistent lot-to-lot performance and long-term reliability. This makes the GRM21AR72E472KW01D an ideal choice for original equipment manufacturers and contract manufacturers who prioritize design standardization and supply chain stability. The compact 0805 package also allows for cost-effective board layouts while maintaining adequate capacitive performance for most mainstream applications. For engineers designing systems requiring either specialized voltage ratings, extreme temperature tolerance, or significantly larger capacitance values, alternative Murata capacitor series would be more appropriate. However, for standard industrial and commercial applications requiring dependable, proven performance, this component represents a well-established industry standard.