GRM155R61A684KE15D

The GRM155R61A684KE15D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading producers of passive electronic components. This capacitor belongs to the GRM series, which represents Murata's standard offering of reliable, cost-effective ceramic capacitors designed for widespread industrial and consumer electronics applications. Multilayer ceramic capacitors are fundamental passive components used in virtually every modern electronic circuit. They function to store electrical energy, filter signals, decouple power supplies, and stabilize voltage levels across PCBs. The GRM series specifically is engineered for general-purpose applications where performance, reliability, and compact size are priorities without requiring specialized high-performance characteristics. The part number designation "155" indicates this capacitor is in the 0402 package size, making it extremely compact and ideal for high-density circuit board layouts. This miniature form factor allows engineers to design smaller devices while maintaining functionality, which is particularly valuable in space-constrained applications such as portable electronics, IoT devices, automotive control modules, and industrial instrumentation. Despite its tiny footprint, this component maintains robust electrical performance and mechanical reliability. The "684" specification in the part number indicates this capacitor has a capacitance value of 0.68 microfarads, a versatile rating suitable for numerous circuit functions including power supply filtering, AC coupling, and high-frequency noise suppression. This capacitance value sits in the mid-range for ceramic capacitors, making it appropriate for both analog and digital circuit applications. Murata's GRM series capacitors are manufactured using advanced multilayer ceramic technology that provides excellent volumetric efficiency and consistent performance across temperature ranges typical of industrial and consumer environments. These components meet international reliability standards and are widely accepted in quality-critical applications including automotive electronics, telecommunications equipment, industrial control systems, and medical devices. Engineers specify this exact part number when they require a proven, readily available ceramic capacitor that offers the right balance of capacitance value, package size, voltage rating, and temperature characteristics for their application. The GRM series' widespread adoption across the industry means excellent availability, predictable pricing, and compatibility with standard PCB assembly processes. For designers working on cost-sensitive projects requiring dependable performance without specialized performance requirements, the GRM155R61A684KE15D represents an economical and practical choice that has been validated across thousands of production designs.