GRM21BR72A104KAC4K

The GRM21BR72A104KAC4K is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading suppliers of passive electronic components. This capacitor belongs to Murata's GRM series, which is widely used in consumer electronics, industrial equipment, and telecommunications applications. Multilayer ceramic capacitors like this model are essential building blocks in modern electronics, serving functions such as decoupling, filtering, and signal coupling across countless circuit designs. The GRM21 designation indicates this is a surface-mount device in a standard 0805 package size (2.0mm × 1.25mm), making it compatible with automated pick-and-place assembly processes used in high-volume manufacturing. This compact footprint allows engineers to achieve higher component density on printed circuit boards while maintaining reliable performance. The part number suffix indicates this capacitor is designed for general-purpose applications with moderate performance requirements. The GRM series is particularly popular in cost-sensitive applications where standard MLCC characteristics are sufficient, rather than specialty high-temperature or high-voltage variants. These capacitors are commonly found in power supply circuits, audio equipment, data acquisition systems, and various control electronics where stable capacitance and reliable long-term operation are important. Key reasons an engineer might select this specific part include its proven reliability track record, widespread availability through distribution channels, compatibility with standard PCB assembly processes, and Murata's reputation for quality control. The 0805 package size represents a practical balance between miniaturization and ease of handling during manufacturing and repair. Additionally, this capacitor is RoHS compliant, meeting environmental regulations for products sold in many markets. The GRM series represents Murata's mainstream MLCC offerings, meaning extensive historical use data exists across numerous applications. This familiarity reduces design risk compared to lesser-known alternatives. Engineers often specify these capacitors when they need dependable performance without paying premium prices for specialized variants. The part is suitable for standard operating conditions found in industrial and consumer equipment, avoiding unnecessary overspecification that would increase costs without adding practical benefit. For applications requiring the highest capacitance stability over temperature, extremely low ESR for high-frequency filtering, or operation at elevated temperatures, engineers would typically select specialized MLCC variants. However, for general-purpose decoupling, filtering, and coupling applications in mainstream electronic equipment, the GRM21BR72A104KAC4K delivers excellent value and proven performance.