12105C104MAT4A

The 12105C104MAT4A is a multilayer ceramic capacitor (MLCC) manufactured by AVX, a leading supplier of passive electronic components. This capacitor is designed for use in a wide range of industrial, consumer, and telecommunications applications where reliable energy storage and signal coupling/decoupling are required. Multilayer ceramic capacitors are fundamental passive components used in virtually every modern electronic circuit. The 12105C series from AVX is a surface-mount technology (SMT) family that offers compact size combined with stable electrical performance across typical operating conditions. These capacitors are constructed from alternating layers of ceramic dielectric material and metal electrodes, which allows them to achieve relatively high capacitance values in a small footprint. The SMT package format makes them ideal for automated assembly on printed circuit boards, reducing manufacturing costs and improving production efficiency. The "C" designation in the part number indicates this is a standard multilayer ceramic capacitor, while the numeric portion specifies the particular case size and value. AVX's 12105 series is commonly found in power supply filtering, signal conditioning, noise suppression, and coupling applications. These capacitors are particularly valued in industrial control systems, power management circuits, audio electronics, and general-purpose filtering where stable performance and cost-effectiveness are important selection criteria. Engineers typically specify this part when they need a proven, widely-stocked ceramic capacitor solution that offers good performance reliability without the size constraints of alternative component types. The AVX 12105 series has been established in the market for many years, meaning extensive design history, proven field reliability, and consistent availability from multiple distributors. This makes it an attractive choice for both new designs and replacement applications in legacy equipment. The ceramic dielectric material used in these capacitors provides stable capacitance across typical industrial temperature ranges, making them suitable for harsh environments and outdoor installations. Ceramic capacitors also exhibit low equivalent series resistance (ESR) and equivalent series inductance (ESL), which makes them effective at high-frequency noise filtering and decoupling applications in power distribution networks. When considering alternatives, engineers might evaluate other case sizes within the same series for space or performance trade-offs, or consider different dielectric materials if extreme temperature stability or voltage requirements warrant it. However, the 12105C104MAT4A remains a standard specification due to its balance of performance, size, cost, and availability in the marketplace. This component represents the type of foundational passive component that forms the backbone of reliable industrial electronics design.