In summary, the Vishay ACAS thin-film chip resistor array series offers tight relative tolerance and TCR characteristics options as well as excellent long-term stability that allows it to replace high-precision discrete resistors to achieve lower costs in high-accuracy electronics. The ACAS professional series version can be considered when only absolute tolerance and TCR specifications are required. Combining high-accuracy performance and excellent long-term stability along with four resistors in one combined package, ACAS series parts are the perfect choice for high-accuracy and high-reliability electronics, as well as when the goal is to reduce the overall PCB size of a design. If automotive AEC-Q200 qualification is required, the ACAS-AT can also be considered.