08055A381FAT2A

# Product Description The AVX 08055A381FAT2A is a thin-film fixed resistor manufactured in the 0805 surface-mount package format. This component belongs to AVX's established family of precision resistors designed for applications requiring tight tolerance and stable performance across varying environmental conditions. The 0805 package remains one of the most widely adopted footprints in modern electronics design. Its compact form factor and proven manufacturing processes make it suitable for dense PCB layouts while maintaining ease of assembly through standard pick-and-place equipment. The thin-film construction method used in this resistor provides superior performance characteristics compared to conventional thick-film alternatives, particularly in applications where stability and accuracy are critical considerations. Engineers typically specify thin-film resistors like the 08055A381FAT2A in precision measurement circuits, analog signal conditioning, sensor interfaces, and calibration networks. Applications commonly include medical instrumentation, data acquisition systems, precision power supplies, and industrial control electronics where resistor drift and tolerance can directly impact system accuracy or require expensive recalibration procedures. The designation "381" in the part number indicates this is a specific resistance value in AVX's standard E-series numbering scheme. Components with this construction are generally selected when specifications demand better temperature coefficient performance and lower noise characteristics than standard film resistors. The thin-film technology also provides improved frequency response, making these resistors suitable for higher-frequency applications where parasitic effects become relevant. AVX's resistor portfolio emphasizes reliability in industrial and commercial environments. The 0805 package size represents an effective balance between component density and manufacturing yield, making it economical for volume production while maintaining the precision required by engineering specifications. When evaluating this part against alternatives, engineers should consider that thin-film resistors command a higher cost per unit compared to standard resistors, but deliver measurable performance advantages in stability, temperature behavior, and long-term reliability. Selection of this specific part is typically justified when system documentation specifies tolerance classes of 0.1% or 0.5%, or when circuit designs are particularly sensitive to resistor value drift over operating life and temperature cycling. The 0805 package dimensions also align with space-constrained PCB designs that cannot accommodate larger packages, while remaining substantially larger than sub-miniature alternatives like 0603 or smaller, offering superior handling characteristics during assembly and rework operations.