GRM31CR72D104KW03L

The GRM31CR72D104KW03L is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading suppliers of passive electronic components. This part belongs to the GRM series, which represents Murata's general-purpose ceramic capacitor line designed for widespread use across consumer, industrial, and automotive applications. Multilayer ceramic capacitors are fundamental building blocks in modern electronics, serving critical functions in power supply filtering, signal coupling and decoupling, noise suppression, and frequency compensation circuits. The GRM31 designation indicates this capacitor uses a 1206 surface-mount package format, making it suitable for automated assembly on standard printed circuit boards. This package size strikes a practical balance between compact PCB real estate and sufficient capacitance value for typical circuit requirements. The "CR" designation in the part number identifies this as a capacitor in Murata's standard reliability class, appropriate for general industrial and commercial applications where robust performance and cost-effectiveness are important considerations. The X7R dielectric material (indicated by the "D" in the part number) is particularly valued for its temperature-stable characteristics and relatively wide operating temperature range, making it suitable for applications that experience temperature fluctuations or require consistent performance across environmental conditions. Engineers typically specify the GRM31CR72D104KW03L in circuits requiring stable capacitance values across varying temperatures and voltage conditions. The X7R dielectric maintains predictable performance, which is essential in timing circuits, filter networks, and power distribution applications where capacitance variation could compromise circuit functionality. This part is commonly found in industrial control systems, telecommunications equipment, test and measurement instruments, and various consumer electronics where reliability and temperature stability matter more than maximizing capacitance density. The 1206 package size offers practical advantages for production and repair. Compared to smaller packages like 0805 or 0603, the 1206 format is easier to hand-solder during prototyping or rework, while remaining compact enough for most modern circuit designs. It provides sufficient lead spacing for reliable wave soldering processes used in high-volume manufacturing. When choosing between ceramic capacitor options, engineers consider factors including dielectric type (affecting temperature stability), package size (affecting circuit density and assembly capability), voltage rating, and capacitance value requirements. The GRM31CR72D104KW03L represents a well-established solution for applications where these characteristics align with circuit design needs. Its widespread use across industrial segments reflects its proven reliability and the broad applicability of Murata's GRM series to standard electronic design challenges.