Those colorful resistors we see in daily life - you'd never guess they're the original form of resistive ceramic rods before being painted! So, what is MF resistive ceramic rod? What is its function?

A Rod Resistors With High Stability is an electronic component based on ceramic materials such as alumina and zirconia. Resistive ceramic rod is mainly used in circuits requiring high insulation and high temperature resistance, and is commonly found in industrial equipment, electronic devices, and other fields.

Resistive ceramic rod is classified into three types based on different materials: 

• Thick-film resistive ceramic rod: Manufactured using isostatic pressing technology, it is suitable for precision resistor applications.

• Zirconia ceramic rod: Boasting superior high-temperature resistance, it is often used as an insulating structural part in high-temperature environments.

• Alumina ceramic rod: Contains 95%～99% alumina, featuring excellent insulation performance. It is suitable for high-frequency circuits, inductor cores, etc.

What is Film Rod High Power Resistors function?

• Industrial machinery: High-temperature components such as electric furnace tubes and silicon carbide rod protection tubes.

• Electronic devices: For example, high-frequency inductor coils and insulating skeletons used in vacuum equipment.

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WEE Technology Published on Nov 25, 2025