0805YC104JAJ4A

The 0805YC104JAJ4A is a multilayer ceramic capacitor (MLCC) manufactured by AVX, one of the leading suppliers of passive electronic components. This part belongs to the 0805 package family, one of the most widely used surface-mount capacitor formats in modern electronics manufacturing. MLLCs are fundamental passive components found in virtually every electronic device. They store and release electrical charge, filter noise from power supplies, couple and decouple AC signals, and stabilize voltage in circuits. The 0805 package size—measuring 0.080 inches by 0.050 inches (approximately 2.0 mm by 1.25 mm)—represents an optimal balance between compact footprint and ease of handling during automated assembly, making it the preferred choice for space-constrained applications where hand soldering is also feasible. The "YC" designation in this part number indicates the component belongs to AVX's general-purpose multilayer ceramic capacitor series, which is engineered for broad industrial and commercial applications. These capacitors are designed to work reliably across standard temperature ranges and voltage ratings typical of consumer and industrial electronics, including power management circuits, signal conditioning stages, and high-frequency filtering applications. Engineers typically specify AVX MLLCs for their consistent quality, established supply chain availability, and compatibility with standard manufacturing processes. The 0805 format in particular has become an industry standard, meaning PCB designs using this component size can be readily manufactured by most contract manufacturers worldwide, reducing production delays and costs. The part number suffix "4A" indicates specific electrical characteristics—likely referring to the voltage and capacitance rating—though this designation varies across AVX's product lines. Common applications for 0805 MLLCs include decoupling capacitors on microcontroller and FPGA power pins, filtering in audio amplifier circuits, timing networks, RF matching networks, and energy storage in LED driver circuits. They are equally at home in consumer electronics, industrial control systems, telecommunications equipment, and automotive applications. Choosing the 0805YC104JAJ4A specifically makes sense when design requirements call for the capacitance and voltage rating this part provides, combined with the proven reliability of AVX's manufacturing and the logistical advantages of a widely stocked standard package. Engineers working on space-sensitive designs where 0603 packages would be marginal, or preferring slightly larger pads for assembly robustness, also commonly default to 0805 components as a practical middle ground in the passive capacitor size spectrum.