CL31B105K

# CL31B105K Product Description The CL31B105K is a multilayer ceramic capacitor (MLCC) manufactured by Samsung, representing a reliable solution for general-purpose capacitive energy storage and filtering applications across industrial and commercial electronics. This component belongs to the CL31 series, a well-established family of ceramic capacitors widely adopted in consumer electronics, telecommunications equipment, and industrial control systems. Multilayer ceramic capacitors are fundamental passive components used to smooth voltage ripple, filter high-frequency noise, decouple power supplies, and block DC while passing AC signals in electronic circuits. The CL31 series specifically targets applications where compact size, cost efficiency, and stable performance across moderate temperature ranges are important design considerations. These capacitors are constructed from multiple layers of ceramic dielectric material with interspersed metal electrodes, allowing manufacturers to achieve useful capacitance values in very small physical packages. The "105" designation in the part number indicates the capacitance value using the industry-standard three-digit code common to ceramic capacitors. The "K" suffix specifies the tolerance class, meaning the actual capacitance will fall within a defined percentage range of the nominal value. This level of tolerance is typical for general-purpose applications where tight capacitance accuracy is not critical. Engineers often specify CL31 series capacitors for several practical reasons. First, Samsung's reputation for consistent quality and reliable supplier relationships make these components attractive for designs requiring predictable sourcing. Second, the CL31 family has been in production for many years, giving design engineers confidence in long-term availability and proven performance in field applications. Third, these capacitors offer a favorable balance between size, cost, and performance characteristics suitable for the mainstream industrial electronics market. The CL31B series designation indicates specific electrical and thermal characteristics optimized for standard industrial operating conditions. Designers typically select this series for mainstream power supply filtering, signal coupling and decoupling, and general noise suppression in circuit boards operating at moderate voltage and current levels. When choosing between ceramic capacitor options, engineers weigh factors including required capacitance value, voltage rating, operating temperature range, frequency response characteristics, and physical space constraints. The CL31B105K serves as a proven standard component that meets these needs for countless existing designs, making it an economical choice for both new designs and replacement applications in industrial equipment and consumer-grade electronics.