GRM155R61A105KE15D

The GRM155R61A105KE15D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading suppliers of passive electronic components. This capacitor is designed for general-purpose filtering, decoupling, and signal coupling applications across a wide range of industrial and commercial electronic systems. Multilayer ceramic capacitors like this model are fundamental building blocks in modern electronics. They store electrical energy and help stabilize voltage levels, suppress noise, and smooth signal transitions in circuit designs. The GRM155R61A105KE15D belongs to Murata's GRM series, which is widely recognized in the industry for reliable performance in cost-sensitive applications where space efficiency and consistent electrical characteristics are important. The part number itself encodes key specifications. The "155" in the part number indicates the package size—specifically a 0402 imperial (1.0mm × 0.5mm metric) surface-mount package. This compact form factor makes it ideal for high-density PCB layouts where space constraints are critical, such as in portable consumer electronics, telecommunications infrastructure, and industrial control systems. The surface-mount design allows for automated assembly, reducing manufacturing complexity and cost. This capacitor is commonly used in power supply circuits for bypass and decoupling purposes, helping filter out high-frequency noise near integrated circuits and voltage regulators. Engineers also specify these capacitors in signal conditioning circuits, where they couple AC signals while blocking DC components, and in timing circuits where stable capacitance values are needed for predictable circuit behavior. The GRM series is known for stable performance across commercial temperature ranges, making these capacitors suitable for most indoor industrial applications. Murata's manufacturing processes ensure consistent capacitance values and low equivalent series resistance (ESR), which is particularly important in power delivery networks and noise-sensitive analog circuits. When selecting the GRM155R61A105KE15D over alternative capacitors, engineers typically value Murata's reputation for quality and consistency, the proven reliability of the GRM series in production environments, and the extensive design history available through numerous reference designs. The 0402 package size provides an excellent balance between ease of hand-soldering or rework (compared to smaller packages) and space efficiency (compared to larger packages). This capacitor is a standard choice for OEM manufacturers, contract manufacturers, and design engineers working on cost-conscious projects that nonetheless require dependable passive component performance. Its wide availability across multiple distributors ensures supply chain reliability for both prototype development and high-volume production runs.