In an era of rapid technological advancement, smart appliances are no longer just about convenience—they now shoulder the critical mission of energy saving. However, as smart functions continue to expand, these devices consume more energy, placing new demands on batteries and power systems. To achieve superior energy efficiency, electronic design must strike a balance between size, power consumption, durability, and stability—where film capacitors play a pivotal role. With their ultra-low loss, excellent high-voltage endurance, and long operational life, film capacitors have become indispensable components in smart appliances.