Metal oxide film resistors are small, precision resistors made of a metal oxide film deposited on a ceramic core. They are widely used in electronics and offer reliable, accurate, and stable performance, making them ideal for use in a variety of applications.
Metal Oxide Film Resistors are widely used in industrial applications due to their superior stability, accuracy, and low noise. They are used in motor control applications, power modules, and power supplies. They are also used in communication systems, medical equipment, automotive applications, and military applications. Metal Oxide Film Resistors have a wide temperature range, high power dissipation and low cost, which make them suitable for many industrial applications. They are also used in surge protection circuits, DC-DC converters, and high-frequency circuits. Their electrical properties are reliable and stable, which makes them reliable and efficient for industrial applications.
Metal oxide film resistors are manufactured by coating a metal oxide film onto a ceramic core. This film is then heated to temperatures of between 400-500°C, after which, the film is then cured in an oven. The thickness of the film is then measured to ensure it meets the required specifications. The core is then cut into sections and the resistive material is printed onto the surface of the core. The core is then passed through a furnace to further cure the film. Finally, the resistor is tested to ensure it meets the required electrical specifications and then packaged for sale.
The performance of metal oxide film resistors is greatly impacted by temperature. As temperature increases, the resistance of the resistor decreases. This is due to the increase in the mobility of charge carriers in the metal oxide film, which causes a decrease in the resistivity of the material. In addition, the tolerance of the resistor will also decrease as the temperature rises. This means that the actual resistance of the resistor may be different from the nominal resistance. Therefore, it is important to consider the temperature when selecting a metal oxide film resistor for a particular application.