GRM21BR71H473KA01K

The GRM21BR71H473KA01K is a ceramic chip 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 broad family of multilayer ceramic capacitors designed for general-purpose applications across consumer electronics, industrial equipment, and telecommunications infrastructure. Ceramic capacitors like this GRM series component are fundamental building blocks in modern electronics, serving critical functions in power supply filtering, signal coupling and decoupling, noise suppression, and frequency compensation circuits. The compact chip package format makes these capacitors ideal for high-density PCB layouts where space constraints are a primary design consideration. The part number structure reveals key characteristics about this specific capacitor. The "21" designation indicates this is a 1206 metric package size (approximately 3.2mm × 2.5mm), which represents a mid-range footprint—larger than miniature 0402 packages but smaller than bulky through-hole components. This size category offers a practical balance between board space efficiency and ease of hand placement during assembly, making it popular in both automated and semi-automated manufacturing environments. The "BR" designation indicates this capacitor uses a Class II dielectric material, which is typical for the GRM series. Class II ceramics provide higher capacitance density compared to Class I materials, making them economical for applications where high capacitance values are needed in small packages. This characteristic makes them particularly valuable in decoupling applications where engineers need to suppress noise across a range of frequencies near power distribution points. The "H" refers to the voltage rating, while the numeric sequence in the part number encodes the capacitance value and tolerance specification. Capacitors in this series are designed to operate reliably in typical industrial and commercial temperature ranges, making them suitable for applications from consumer electronics to automotive and industrial control systems. Engineers specify the GRM21BR71H473KA01K when they need a reliable, proven ceramic capacitor in a standard package size with well-characterized performance. The Murata GRM series benefits from extensive industry adoption, meaning design resources, reference circuits, and production experience are readily available. This reduces design risk and simplifies qualification processes in manufacturing environments. The 1206 package size also provides broad compatibility with standard PCB assembly equipment, reducing tooling costs and production complexity compared to less common package formats.