CL21A225KPFNNNE

The CL21A225KPFNNNE is a multilayer ceramic capacitor (MLCC) manufactured by Samsung, representing a reliable choice for general-purpose energy storage and signal coupling applications across industrial and consumer electronics. This component belongs to Samsung's established CL21 series, which has been widely adopted in circuit designs requiring compact, cost-effective capacitive solutions. Multilayer ceramic capacitors like this part function by storing electrical charge across multiple thin layers of ceramic dielectric material interleaved with metal electrodes. They serve critical roles in power supply filtering, decoupling, bypass applications, and AC signal coupling throughout electronic systems. Their compact form factor allows engineers to maximize circuit density while maintaining performance. The CL21A designation indicates this capacitor uses an X7R or similar temperature-stable dielectric material, making it suitable for applications where capacitance retention across temperature variations is important. This dielectric class is preferred for general industrial applications where moderate stability requirements must be balanced against cost considerations. The part uses a radial lead through-hole package configuration, which remains prevalent in industrial equipment, legacy systems, and applications requiring robust mechanical mounting and easy board-level repair or replacement. Engineers typically specify this exact part number when designing or maintaining systems where component-level compatibility is critical. The Samsung CL21A series has established a long production history, making it a standard reference design choice for OEMs and contract manufacturers who value supply chain consistency. This particular part offers a proven balance between performance, size, and availability that makes it suitable for industrial control circuits, audio equipment, power management stages, and various consumer applications. The through-hole configuration provides superior mechanical robustness compared to surface-mount alternatives, which is valuable in industrial environments subject to vibration, thermal cycling, or manual service access requirements. Additionally, through-hole components integrate easily into legacy PCB designs and manufacturing processes still common in industrial sectors. When selecting components for replacement or new designs, engineers often choose this part to ensure compatibility with existing circuit topologies and manufacturing procedures. The CL21A series represents the practical middle ground in the capacitor market, offering sufficient performance for non-critical applications while maintaining the economies of scale that benefit procurement and inventory management in industrial operations.