GRM31A5C2J101JW01D

The GRM31A5C2J101JW01D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading producers of passive electronic components. This capacitor is housed in a 1206 surface-mount package, a widely used standard size that measures approximately 3.2mm by 1.6mm, making it suitable for compact PCB designs while remaining accessible for both automated assembly and hand repair when needed. Multilayer ceramic capacitors like this model serve as fundamental building blocks in modern electronics, providing energy storage, filtering, decoupling, and signal coupling functions across countless applications. The "31" designation in the part number indicates this capacitor belongs to Murata's general-purpose ceramic capacitor family, designed for broad industrial and commercial use rather than specialized applications requiring extreme environmental ratings. The "C2" notation identifies the dielectric material class, which balances capacitance stability with cost-effectiveness. Capacitors in this class maintain reasonable capacitance values across temperature ranges and voltage conditions, making them ideal for mainstream industrial applications where precision is important but extreme stability is not critical. This makes them well-suited for power supply circuits, filtering stages, and general-purpose decoupling applications found in consumer electronics, industrial control systems, and telecommunications equipment. Engineers typically specify this exact part when designing circuits that require reliable, cost-effective capacitance in a standard package size. The 1206 form factor offers several practical advantages: it's small enough for modern high-density PCBs, large enough to handle reasonable voltage and current stresses without excessive heating, and compatible with standard pick-and-place assembly equipment used in high-volume manufacturing. The part number designation suggests a 100nF capacitance value, a frequency-used rating in decoupling applications, filtering stages, and AC coupling circuits throughout industrial electronics. The Murata brand reputation for quality and consistency makes this component a preferred choice in applications where long-term reliability and predictable performance matter. Unlike exotic or specialized capacitors, the GRM31A5C2J101JW01D benefits from well-established supply chains and broad industry acceptance, reducing design risk and simplifying procurement for production volumes. This capacitor is commonly used in switching power supplies, DC-DC converters, audio amplifiers, sensor interfaces, industrial automation controllers, and various embedded systems. Its combination of standard package size, proven dielectric formulation, and established manufacturing processes makes it an economical workhorse component in countless industrial and commercial electronic designs where dependable capacitance is essential.