GRM21A7U2E471JW31D

The GRM21A7U2E471JW31D 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 package size (imperial designation), making it suitable for both through-hole and surface-mount applications across a wide range of electronic equipment. Multilayer ceramic capacitors like this unit are fundamental building blocks in modern electronics, used primarily for energy storage, signal filtering, decoupling, and noise suppression in circuits. The 1206 package represents a common mid-sized footprint that balances ease of assembly with reasonable volumetric efficiency, making it popular in industrial, automotive, telecommunications, and consumer electronics applications. Murata's GRM21 series capacitors are designed for general-purpose applications requiring reliable performance across commercial and industrial temperature ranges. These capacitors use advanced ceramic dielectric materials formulated to provide stable capacitance characteristics over temperature and voltage variations, which is critical for circuits that must maintain performance in changing environmental conditions. The part number coding indicates this is a standard-performance ceramic capacitor intended for mainstream industrial use rather than specialized military or high-reliability applications. Engineers typically specify components from this series for decoupling power supply noise from integrated circuits, filtering high-frequency signals, coupling AC signals between stages, and bypassing unwanted frequency components in audio and RF circuits. The 1206 package size offers several practical advantages. It is large enough to handle reasonable current loads without excessive heating, yet small enough that designers can achieve compact board layouts. The package also provides good mechanical stability during automated assembly processes and is easily hand-soldered or reworked when necessary, which appeals to manufacturing facilities with varying levels of automation. Compared to alternative capacitor technologies, MLCCs offer superior frequency response, minimal inductance in the 1206 package, and lower cost at volume than film or electrolytic alternatives. However, engineers must consider ceramic dielectric characteristics when selecting from this family, as capacitance can shift with applied voltage and temperature depending on the specific dielectric class used. This capacitor is well-suited for design engineers working on mainstream commercial and industrial products who need a proven, cost-effective solution for general filtering and energy storage duties. The Murata brand heritage and widespread industry adoption mean design resources, application notes, and manufacturing support are readily available, reducing development risk for system designers.