GRM2165C1H391JA01D

The GRM2165C1H391JA01D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading producers of passive electronic components. This capacitor is designed for use in a wide variety of electronic circuits where reliable energy storage, filtering, and signal coupling are required. Multilayer ceramic capacitors are among the most widely used passive components in modern electronics. They consist of alternating layers of ceramic dielectric material and metal electrodes, which are then stacked and fired into a single monolithic package. This construction allows manufacturers to achieve high capacitance values in small physical sizes, making MLCCs ideal for space-constrained applications such as consumer electronics, telecommunications equipment, automotive systems, and industrial control boards. The part number structure indicates this capacitor belongs to Murata's GRM series, which represents a general-purpose family of ceramic capacitors commonly used in mainstream commercial and industrial applications. The "2165" size code denotes the component's physical dimensions in metric format, specifically a 0805-inch equivalent package (2.0mm × 1.6mm × 0.65mm). This compact form factor is standard in surface-mount technology (SMT) assembly, allowing for automated placement on printed circuit boards with high speed and precision. MLCCs like this component are employed in numerous circuit functions including power supply bypassing and decoupling, where they suppress high-frequency noise near integrated circuits; AC coupling in signal paths; noise filtering in analog and mixed-signal designs; and general energy storage in timing and resonant circuits. The ceramic dielectric material provides good frequency response characteristics and relatively stable performance across operating conditions. Engineers typically specify this particular Murata part based on several factors: the manufacturer's established reputation for quality and reliability, consistency in electrical performance across production batches, proven long-term availability in the supply chain, and compatibility with standard SMT manufacturing processes. Murata's quality standards and testing procedures make their capacitors suitable for applications requiring high reliability, including medical devices, aerospace equipment, and critical industrial systems. The GRM2165 package size represents an optimal balance between handling ease during assembly and the compact footprint demanded by modern product designs. Because this is a commodity-class component available in many voltage and capacitance ratings, engineers can select the exact electrical specification needed for their application while benefiting from the standardized package and proven manufacturing history of this popular series.