GRM21A7U2E561JW31D

The GRM21A7U2E561JW31D is a multilayer ceramic capacitor (MLCC) 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 general-purpose ceramic capacitors widely used across consumer electronics, industrial equipment, telecommunications, and automotive applications. Multilayer ceramic capacitors are fundamental passive components found in virtually every modern electronic circuit board. They serve multiple critical functions including energy storage, signal filtering, noise suppression, and power supply decoupling. The GRM series is engineered to provide reliable performance across diverse operating conditions, making these capacitors suitable for both standard commercial applications and more demanding industrial environments. The part number itself encodes key characteristics of this capacitor. The "GRM21" designation indicates this is a 1206 package size, which measures approximately 3.2mm by 1.6mm. This package size is one of the most commonly used in modern electronics manufacturing because it offers an effective balance between board space efficiency and ease of handling during automated assembly processes. The "A" in the part number denotes the dielectric class and temperature characteristics, indicating this capacitor is suited for applications where moderate temperature stability is required. Engineers typically specify this particular part when they need a reliable, cost-effective capacitor for mid-range voltage and capacitance applications. The 1206 package is particularly popular in designs where space is moderately constrained but component availability and manufacturability are important considerations. This size remains one of the most widely stocked capacitor formats in the industry, ensuring consistent supply chain availability across manufacturing cycles. The GRM21A series is frequently selected for applications requiring stable performance across standard industrial temperature ranges. These capacitors are commonly found in power management circuits, audio amplification stages, RF applications, switching power supplies, and general filtering networks. Their proven reliability and extensive use in established designs make them a standard choice for engineers designing cost-conscious products without extreme performance requirements. Murata's manufacturing quality and strict process controls ensure consistent electrical performance between production batches, which is critical for high-volume manufacturing environments. The GRM21A7U2E561JW31D represents a specific combination of package size, dielectric material, voltage rating, and capacitance value optimized for particular circuit requirements. For engineers evaluating alternatives, this part offers the advantage of widespread industry adoption, comprehensive design support materials, and multiple qualified suppliers, reducing long-term supply and obsolescence risk.