GRM21AR72D472KW01D

The GRM21AR72D472KW01D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading producers of electronic components. This capacitor is part of Murata's GRM series, which represents a widely-used family of general-purpose ceramic capacitors designed for a broad range of industrial and commercial applications. Multilayer ceramic capacitors like this component are fundamental building blocks in modern electronics, used for energy storage, filtering, decoupling, and signal coupling in countless circuit designs. The GRM21 designation indicates this is a compact surface-mount device with a 0805 package size (0.080 inches by 0.050 inches), making it suitable for space-constrained designs while remaining easy to handle and solder using standard manufacturing equipment. The "AR" designation within the part number indicates this capacitor operates across a relatively wide temperature range suitable for general industrial applications. Capacitors in this series are commonly specified in consumer electronics, industrial control systems, telecommunications equipment, automotive electronics, and medical devices where reliable performance over extended operating conditions is required. Engineers typically choose components from the GRM series for several practical reasons. First, Murata's reputation for quality and reliability means consistent performance across manufacturing batches. Second, these capacitors are produced in enormous volumes, ensuring stable pricing and availability in the supply chain compared to more specialized alternatives. Third, the standardized package and electrical characteristics make them directly interchangeable in many circuit designs, simplifying procurement and reducing design revision costs. The multilayer construction of ceramic capacitors provides excellent frequency characteristics, making them particularly valuable in high-frequency filtering and decoupling applications where parasitic inductance must be minimized. Unlike electrolytic alternatives, MLCCs contain no liquid electrolyte, offering superior reliability in harsh environments and extended service life without the risk of electrolyte leakage or drying. Applications for capacitors in this family span from basic power supply filtering to RF impedance matching, timing circuits, and EMI suppression networks. The 0805 package size strikes a practical balance between component miniaturization and handling convenience, making it the default choice for mainstream circuit board designs across multiple industries. For engineers and procurement specialists, specifying the exact part number GRM21AR72D472KW01D ensures consistency with existing designs, maintains compatibility with established supply chains, and leverages proven performance history in similar applications. This makes it an efficient choice for both new designs and production variants of existing equipment.