CL21B103KAANNND

The CL21B103KAANNND is a film capacitor manufactured by Samsung, representing a reliable choice for applications requiring stable capacitance and low distortion characteristics. This component belongs to the CL series family of capacitors, which are widely used across industrial electronics, consumer devices, and professional audio equipment. Film capacitors like this model are constructed using a thin plastic film dielectric material, which provides several performance advantages over alternatives. The construction method delivers excellent frequency response, minimal dielectric absorption, and inherently low equivalent series resistance (ESR). These properties make film capacitors particularly valuable in applications where signal integrity and low noise are priorities. The part number structure indicates this is a radial-leaded component, meaning leads extend from both ends of the cylindrical body for through-hole PCB mounting. This package style remains standard in many industrial applications where through-hole assembly is preferred over surface-mount technology, particularly in environments requiring manual rework capability or where component accessibility matters. Samsung's CL series capacitors are commonly specified in audio signal paths, precision measurement circuits, and coupling applications where the low-distortion characteristics of film technology are essential. You'll find these components in crossover networks for audio systems, precision instrumentation, industrial control boards, and various consumer electronics where AC signal coupling or filtering is required. Engineers typically select film capacitors like the CL21B103KAANNND when polypropylene film construction is needed for its combination of stability, temperature coefficient, and long-term reliability. The radial lead configuration appeals to designers working with through-hole layouts, legacy equipment designs, or applications where mechanical robustness during assembly and repair is valued. Compared to ceramic or electrolytic alternatives, film capacitors offer superior linearity and predictable behavior across temperature variations and frequency ranges. This predictability makes them suitable for circuits where capacitance accuracy affects overall system performance. The Samsung CL series maintains consistent quality standards across industrial applications, making it a specification choice for OEMs requiring reliable performance with established manufacturing sources. This component integrates readily into designs requiring durable, non-polarized capacitors with performance characteristics suitable for signal conditioning, filtering, and coupling applications. Its established position in industrial supply chains and compatibility with standard through-hole assembly processes support its continued use in both legacy systems and new equipment designs where film capacitor technology is specified.