Aluminum-Polymer (AP) capacitors are a type of capacitor that combines the benefits of aluminum and polymer materials to provide enhanced performance characteristics. They are designed to offer high reliability, low weight, and excellent temperature stability. AP capacitors utilize an aluminum electrode in conjunction with a polymer dielectric material, resulting in improved electrical properties such as capacitance value, voltage rating, and leakage current. These capacitors are commonly used in various applications including automotive electronics, industrial control systems, and renewable energy systems due to their high efficiency and long lifespan.