GRM31B7U3A471JW31L

The GRM31B7U3A471JW31L is a multilayer ceramic capacitor manufactured by Murata, one of the world's leading suppliers of passive electronic components. This part belongs to Murata's GRM series, which represents a comprehensive family of general-purpose ceramic capacitors widely used across industrial, automotive, telecommunications, and consumer electronics applications. Multilayer ceramic capacitors (MLCCs) like this component are fundamental building blocks in modern electronic circuits. They serve critical functions including energy storage, signal coupling and decoupling, filtering, and noise suppression. The GRM series is specifically engineered for applications requiring reliable performance in standard operating environments, making it a popular choice among design engineers for both prototype development and high-volume manufacturing. The part number encoding reveals important characteristics about this capacitor. The GRM31 designation indicates this is a 1206-size component, one of the most commonly used package dimensions in surface-mount technology. This package size offers an effective balance between board space efficiency and ease of handling during assembly. The "B" in the part number denotes the specific dielectric material formulation used in this capacitor, which influences its electrical properties and temperature stability characteristics. Engineers frequently specify components from the GRM series when they require capacitors that deliver predictable performance across the full operating temperature range of their applications. These capacitors are designed to meet stringent reliability requirements, including resistance to thermal shock, mechanical stress during soldering, and long-term aging effects. The series is manufactured using Murata's proven production processes, ensuring consistency from batch to batch—an important consideration for high-reliability applications. The 1206 package size makes this part particularly attractive for applications where component density must be optimized without sacrificing accessibility for repair or rework. Engineers encounter this package type routinely in power supply circuits, signal conditioning stages, and decoupling applications throughout industrial control systems, motor drives, and other embedded equipment. When selecting capacitors for new designs, engineers consider factors such as available package sizes, dielectric materials, voltage ratings, and capacitance values. The GRM series' broad range of options allows designers to find suitable components across diverse specifications. This part would be chosen when the specific combination of package dimensions, capacitance value, voltage rating, and temperature characteristics align with circuit requirements—offering a proven solution that reduces design risk and supports reliable system performance over the intended product lifetime.