GRM31A5C2J391JW01D

The GRM31A5C2J391JW01D is a multilayer ceramic capacitor manufactured by Murata, one of the world's leading producers of passive electronic components. This part belongs to the GRM series, which represents a broad family of general-purpose ceramic capacitors designed for widespread use across consumer, industrial, and automotive electronics. Multilayer ceramic capacitors (MLCCs) like this model function as energy storage and filtering elements in electronic circuits. They are among the most commonly used passive components in modern electronics, serving critical roles in power supply filtering, signal coupling and decoupling, noise suppression, and frequency compensation applications. The compact size and cost-effectiveness of MLCCs make them ideal for high-volume manufacturing and space-constrained circuit designs. The "GRM31" designation indicates this is a surface-mount component in the 1206 package format (3.2mm × 2.5mm), a standard size widely adopted across the industry. This package size represents a middle ground between smaller 0805 components and larger packages, offering good handling characteristics during automated assembly while maintaining reasonable component density on circuit boards. The surface-mount configuration means this capacitor is designed for reflow soldering onto printed circuit boards, typical of modern manufacturing processes. The specific characteristics encoded in the full part number indicate this is a ceramic capacitor with particular dielectric material and voltage rating selections suited to general industrial applications. Murata's GRM series capacitors are specified across diverse end-use segments including telecommunications equipment, consumer electronics, industrial control systems, power management circuits, and automotive subsystems. Engineers typically select specific MLCC part numbers based on several design requirements: required capacitance value, voltage rating, temperature stability class, frequency response, and board space constraints. Within the GRM family, Murata offers variants across different performance tiers and materials to match these varying specifications. When an engineer specifies this exact part number rather than alternatives, it usually reflects a precise match to these design parameters established during the circuit development phase. The reliability of Murata's manufacturing and the widespread availability of components in the GRM series make them a standard choice for production runs. The consistent quality and electrical performance across production batches are important factors when designing circuits that must meet stringent reliability requirements, particularly in industrial and automotive applications where component failure can have significant consequences. This part is suitable for use in new equipment designs and repair or replacement applications requiring equivalent specifications to the original component.