Yageo's automotive-grade thick film chip resistor, the AC series, conforms to the automotive electronics industry requirements and is mainly applicable to heating, ventilation, air conditioning (HVAC); infotainment; navigation; lighting; and power window systems, among others. Compared to other applications, the automotive industry imposes more strict requirements in all aspects.

The AC series is optimized to conform to the strict automotive industry standard, while offering the defined tolerance of 5% and 1%; temperature coefficient resistance (TCR) of ±100 ppm/°C; and humidity resistance of 1% (1,000 hours at +85°C, 85% RH, and 10% operating power), with a 2 KV ESD rating. These high standard characteristics allow Yageo's AC series to be applied to the majority of automotive electronics systems.