Metal film resistors are electronic components that provide resistance in a circuit. They are made by depositing a thin layer of metal onto a ceramic substrate, which allows for precise resistance values. These resistors are known for their stability, low noise, and high accuracy, making them suitable for various applications in electronics. One of the key advantages of metal film resistors is their temperature coefficient, which indicates how much their resistance changes with temperature. This property ensures consistent performance in different environmental conditions. They are commonly used in precision circuits, audio equipment, and measurement devices due to their reliable characteristics.