GRM1555C1H221FA01D

The GRM1555C1H221FA01D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading producers of passive electronic components. This capacitor is part of Murata's GRM series, which represents a broad family of general-purpose ceramic capacitors designed for widespread use across consumer electronics, industrial equipment, and telecommunications infrastructure. Multilayer ceramic capacitors like this model function as energy storage and filtering devices in electronic circuits. They are among the most commonly used passive components in modern electronics, valued for their compact size, reliability, and cost-effectiveness. The GRM1555C1H221FA01D uses a 1555 case package, which is a surface-mount format that allows for automated placement on printed circuit boards during manufacturing. This compact package size makes it ideal for high-density circuit designs where space is at a premium. The part number itself encodes key specifications. The "1H" designation indicates the capacitor's voltage rating class, while the "221" in the part number suggests the capacitance value and multiplier (typically indicating a capacitance in the 220 picofarad range, though engineers should verify exact specifications for their application). The "FA01D" suffix identifies the specific variant within Murata's product line, indicating particular performance characteristics and manufacturing standards. Engineers typically specify Murata GRM series capacitors in applications including power supply decoupling, signal coupling and blocking, resonant circuits, and noise filtering across AC and DC applications. These capacitors are particularly common in power management circuits, RF applications, and general filtering roles where reliable performance across a range of operating conditions is required. The choice of this specific part versus alternatives often comes down to Murata's quality reputation, consistent availability in the supply chain, proven reliability in field applications, and the specific electrical characteristics optimized for the intended circuit role. Murata's GRM series benefits from extensive industry validation and wide adoption, which reduces design risk for engineers. Additionally, surface-mount ceramic capacitors in this package size offer excellent high-frequency performance compared to larger through-hole alternatives. For engineers designing or troubleshooting electronic equipment, this capacitor represents a standard industrial-grade passive component suitable for mainstream commercial and industrial applications. Its prevalence in the market means broad compatibility with assembly processes and ready availability through established distribution channels.