Metal strip resistor, also known as aluminum shell resistor or electrolytic resistor, is a type of resistor based on metal strip. It is usually composed of a metal ribbon that has been specially treated and wound around a ceramic tube or metal shell.

Metal strip resistors can be widely used in various applications in electronic devices and circuits, such as automatic control systems, instrument equipment that requires high precision and stable resistance, communication equipment, etc. For example, they can be used in power supplies, radiators and sensors. In addition, they can also be used in electric motor systems such as transformers and generators.