GRM21BR71C105KA01K

The GRM21BR71C105KA01K is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading suppliers of passive electronic components. This capacitor is part of Murata's GRM series, which represents a broad family of general-purpose ceramic capacitors widely used across consumer electronics, industrial control systems, telecommunications equipment, and automotive applications. Multilayer ceramic capacitors function as energy storage and filtering elements in electronic circuits. They work by accumulating and releasing electrical charge across a ceramic dielectric material sandwiched between multiple metal layers. This design allows manufacturers to achieve relatively high capacitance values in compact packages, making MLCCs essential for modern compact electronics where board space is at a premium. The part number structure provides insight into the component's specifications. The "21" in the GRM designation indicates this capacitor uses the 0805 imperial package size (approximately 2.0mm × 1.25mm), a standard surface-mount footprint that balances handling ease with miniaturization. This package is extremely common in modern printed circuit board design and is compatible with standard automated assembly processes. The "C" in the fourth position typically denotes a ceramic composition optimized for general-purpose applications with moderate temperature stability characteristics. The numerical portion "105" refers to the capacitance value in picofarad notation using standard IPC coding. Engineers frequently specify Murata GRM series capacitors for decoupling, bypassing, and filtering applications in power supply circuits, signal processing stages, and high-frequency switching applications. The series is known for reliability and consistency in performance across temperature variations within its rated operating range. Murata's manufacturing quality standards make these capacitors suitable for applications demanding long-term stability and consistent electrical behavior. The 0805 package size offers practical advantages compared to larger alternatives: it reduces board area requirements, lowers assembly costs through faster placement processes, and maintains good electrical performance for most general-purpose filtering and coupling applications. Compared to smaller packages like 0603, the 0805 typically provides slightly better voltage and current handling characteristics while remaining highly cost-effective. Engineers might select this specific part number when designing circuits requiring reliable capacitor performance in standard industrial or consumer products where the 0805 package footprint is already established in their design infrastructure. The Murata GRM series reputation for quality and availability across multiple global distributors also influences specification decisions for production designs requiring consistent long-term supply.