GRM21B5C1H203JA01L

# GRM21B5C1H203JA01L Multilayer Ceramic Capacitor by Murata The GRM21B5C1H203JA01L is a multilayer ceramic capacitor (MLCC) manufactured by Murata, one of the world's leading producers of passive electronic components. This component belongs to Murata's GRM series, which represents a broad family of general-purpose ceramic capacitors designed for mainstream industrial and consumer electronics applications. Multilayer ceramic capacitors are among the most widely used passive components in modern electronics. They function by storing electrical charge between conductive plates separated by ceramic dielectric material. The "multilayer" construction allows manufacturers to achieve relatively high capacitance values in small physical packages by stacking many layers of ceramic and conductive material. The GRM21B5C1H203JA01L uses a 1206 package size (imperial designation), which is a standard surface-mount form factor measuring 3.2mm × 1.6mm. This size offers a practical balance between component density and handling ease, making it suitable for high-volume automated assembly processes common in manufacturing. Murata's GRM series is known for reliability and consistency across diverse operating conditions, making these capacitors appropriate for applications ranging from consumer electronics to industrial control systems, telecommunications equipment, and automotive electronics. The component designation suggests this part is configured for general-purpose use rather than specialized applications requiring extreme temperature stability or high voltage ratings. Engineers typically specify the GRM21B5C1H203JA01L when they need a cost-effective, readily available capacitor for standard filtering, coupling, decoupling, or bypass applications in circuit designs. Decoupling is among the most common uses, where capacitors are placed near integrated circuit power pins to supply instantaneous current during switching transients and reduce power supply noise. This part's 1206 package size makes it particularly useful in designs where component space is moderately constrained but full miniaturization is not required. The choice of this specific part over alternatives typically depends on several factors: the required capacitance value (indicated in the part number), the voltage rating needed for the application, temperature operating range, tolerance specifications, and cost considerations. Murata's reputation for quality and the wide availability of GRM series capacitors in the distribution channel make them a preferred choice for many original equipment manufacturers and contract manufacturers seeking reliable, proven components. The GRM21B5C1H203JA01L represents a mature, well-established component technology that remains fundamental to virtually all electronic equipment, from small consumer devices to large industrial systems.