CL21B103KBCNNNC

The CL21B103KBCNNNC is a multilayer ceramic capacitor (MLCC) manufactured by Samsung, representing a standard component choice for general-purpose capacitive filtering and energy storage applications across industrial electronics and consumer devices. This capacitor belongs to Samsung's CL series family, which is widely recognized for reliable performance in mainstream electronic applications. Multilayer ceramic capacitors like this component function by storing electrical energy in an electric field between multiple layers of ceramic dielectric material and conductive electrodes. They are essential for filtering power supply ripple, coupling and decoupling signals, energy storage in switching circuits, and noise suppression in high-frequency applications. The compact form factor and low cost of MLCCs make them the dominant capacitor technology in modern electronics manufacturing. The CL21B designation indicates this capacitor uses a 0805 package size (in metric: 2012), a medium-sized surface-mount format that balances ease of handling with sufficient capacitance density. This package size is particularly useful in space-constrained designs where larger components like 1206 packages cannot fit, yet the capacitor still provides adequate current-handling capability. The 0805 format is standard across consumer, industrial, and automotive electronics, making it a practical choice for designers concerned with procurement reliability and manufacturing compatibility. Samsung's CL series MLCCs are specified across a broad voltage range and capacitance range, serving applications from low-voltage digital circuits to moderate-voltage analog and power management circuits. Engineers typically select this component family when seeking a balance between cost efficiency, size, availability, and general-purpose performance without requiring specialized characteristics like ultra-high voltage rating, extreme temperature stability, or low-ESR performance needed in specific applications. The CL21B103KBCNNNC would be specified in applications requiring standard capacitive behavior in mainstream industrial and consumer equipment: switched-mode power supplies, audio amplifiers, data acquisition systems, motor controllers, and general signal conditioning circuits. Manufacturers choose this component over alternatives when the application requirements fall within the standard performance envelope—when specialized military-grade, automotive-qualified (AEC-Q200), or high-reliability variants are not necessary, but proven Samsung quality and widespread industry acceptance are valued. For engineers evaluating this part, the primary consideration is confirming that the capacitance value, voltage rating, and temperature characteristics of the CL21B103KBCNNNC align with their specific circuit requirements and environmental operating conditions. This component represents a mainstream choice suitable for the majority of industrial and commercial electronic designs.