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| Customization: | Available |
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| Resistance: | Fixed Resistor |
| Function for Resistance: | Carbon Film Resistor |
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| TMRC-Carbon Film Resistor |
An axial carbon film resistor is one of the most widely used axial fixed resistors in the field of electronic components. Boasting advantages such as low cost, mature manufacturing processes, and stable electrical performance, it is extensively applied in various electronic circuits including consumer electronics, industrial control systems, communication devices, and household appliances.
High-purity ceramic rods (e.g., alumina ceramics) are typically adopted as the substrate. Featuring high temperature resistance, excellent insulation, and stable thermal expansion coefficient, this component serves as the rigid support framework for the resistor, ensuring structural stability under varying operating temperatures.
The carbon film layer is formed through a high-temperature vacuum coating process. Hydrocarbon gases (such as methane and propane) are introduced into a vacuum chamber and thermally decomposed. The resulting carbon atoms are then deposited evenly onto the surface of the ceramic substrate, forming a thin, conductive carbon film. The thickness and resistivity of this film directly determine the basic resistance value of the component: thinner films correspond to higher resistance values.
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