GRM2165C2A391JA01D

The GRM2165C2A391JA01D 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 encompasses a broad range of general-purpose ceramic capacitors designed for mainstream industrial and commercial applications. Multilayer ceramic capacitors like this component are fundamental building blocks in modern electronics, serving critical functions in filtering, decoupling, coupling, and energy storage across countless circuit designs. The GRM2165C2A391JA01D features a 1206 package size (metric dimensions of approximately 3.2mm × 1.6mm), making it a surface-mount component that balances ease of automated assembly with reasonable capacitance density. This package size is widely used in compact consumer electronics, industrial control boards, telecommunications equipment, and automotive applications where space is moderately constrained but not at premium levels. The part number structure indicates this capacitor carries a capacitance value in the range typical for general-purpose applications, positioning it for use in power supply filtering, signal path coupling, and noise suppression circuits. Murata's GRM series capacitors are known for reliable performance across standard industrial temperature ranges and are widely specified by design engineers who need proven, cost-effective solutions without specialized performance requirements. Engineers typically select the GRM2165C2A391JA01D when designing circuits that require a standard ceramic capacitor with established supply chain reliability and proven field history. The 1206 package offers practical advantages: it's large enough to deliver reasonable capacitance values and handle manufacturing tolerances without difficulty, yet small enough for integration into modern printed circuit board layouts. The component is neither specialized for high-temperature environments nor optimized for precision tolerance grades, but rather serves as a workhorse solution suitable for the majority of industrial applications. This capacitor would commonly appear in applications including industrial power supplies, motor controllers, factory automation equipment, embedded computing modules, and various control electronics. Its characteristics make it particularly suitable for designers seeking straightforward component solutions that don't require the cost premium of specialized alternatives such as high-voltage, high-temperature, or low-ESR specialty capacitors. When an engineer specifies this exact part, they're typically prioritizing component availability, proven reliability, standardized performance characteristics, and cost-effectiveness. The GRM series has extensive historical use data, making it a lower-risk choice for production designs requiring components with established manufacturing maturity and supply chain stability.