GRM188R71H393KA61D

The GRM188R71H393KA61D is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading suppliers of passive electronic components. This capacitor is part of Murata's GRM series, which represents a broad family of high-reliability ceramic capacitors widely used across industrial, automotive, telecommunications, and consumer electronics applications. MLCCs like this component serve as energy storage and filtering elements in electronic circuits. They are essential for decoupling, bypassing, timing, and signal coupling functions in power supplies, amplifiers, microcontroller circuits, and RF applications. The ceramic dielectric material allows for compact packaging while maintaining reasonable capacitance values, making MLCCs the preferred choice for space-constrained designs. The part number indicates several key design characteristics. The "GRM188" designation refers to a standard 0603 metric package size (1.6mm × 0.8mm × 0.8mm), which is one of the most common surface-mount capacitor footprints in modern electronics. This compact size makes the component suitable for high-density printed circuit boards where space efficiency is critical. The package is compatible with standard automated assembly processes, reducing manufacturing costs and improving production reliability. The "71" notation within the part number indicates this capacitor is rated for 50V DC working voltage, appropriate for moderate-voltage applications including industrial control systems, automotive electronics, and standard consumer devices. The "393" designation specifies the capacitance value, representing 39 nanofarads (nF) in the standard electronic naming convention. The "H" in the part number indicates this device uses Murata's X7R dielectric material, which provides stable capacitance performance across a broad temperature range. X7R capacitors maintain relatively constant capacitance with changes in temperature and applied voltage, making them suitable for applications requiring predictable performance in varying environmental conditions. This characteristic distinguishes them from Y5V or Z5U dielectric types, which exhibit greater capacitance variation but allow higher volumetric efficiency. Engineers specify this exact part when they need a reliable, proven component for cost-sensitive applications requiring stable performance without extensive qualification. The Murata brand carries strong recognition for quality and consistency in industrial supply chains. The GRM188R71H393KA61D's combination of small package size, moderate voltage rating, and stable dielectric material makes it ideal for filtering and decoupling roles in digital logic circuits, microcontroller boards, sensor interfaces, and power distribution networks across industrial and commercial equipment.