WEE Technology Company Limited - WEE are Capacitors Specialist
（1） Carbon Film Resistor: Carbon film resistor is the earliest and most widely used resistor. It is made of carbon deposited on the ceramic substrate. Different resistance values can be obtained by changing the electrical thickness or length of the carbon film. In fact, it is characterized by high temperature resistance. When the ambient temperature rises, its resistance change is very small compared with other resistors, and it has good high-frequency characteristics and high precision. It is often used in high-end equipment such as precision instruments.
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（2） Metal Film Resistor: Metal film resistor is made by depositing a layer of alloy powder on the ceramic substrate under vacuum. Different resistance values can be obtained by changing the thickness or length of the metal film. Metal film resistors are characterized by high accuracy, good stability, low noise and low temperature coefficient. However, due to the uneven structure of metal film resistance, its pulse load capacity is poor, and the cost is relatively high.
More details, please check: https://www.weetcap.com/Resistors/WEET-MF-Series-Metal-Film-Precision-Resistor.html
Tip: distinguish between carbon film resistor and metal film resistor: from the appearance, the color ring of metal film resistor is five rings (1%). The color ring of carbon film resistor is four rings (5%). Metal film resistors are generally blue, and carbon film resistors are generally khaki or other colors. In addition, you can also use a multi-meter to measure the resistance value of the resistance, and then use the hot electric luotie to approach the resistor. If the resistance value changes greatly, it is the carbon film resistance, and the small change is the metal film resistance.
（3） Metal Oxide Film Resistor: Metal oxide film resistor is made by depositing the metal salt solution of tin gold and antimony on the ceramic skeleton by high-temperature spray. Compared with metal film resistors, it has the advantages of oxidation resistance, acid resistance, high temperature resistance and so on, but its resistance value is generally small, so it can only be used to make low resistance resistors.
More details, please check: https://www.weetcap.com/Resistors/WEET-MO-Series-Metal-Oxide-Resistor.html
（4） Wound Resistor: Wound resistor is made of constantan wire wound on the insulating framework. It has many advantages, such as high temperature resistance, high precision and high power. But its frequency modulation characteristic is poor, which is mainly due to its large distributed inductance. It is widely used in low-frequency precision instruments. Common winding resistance includes cement ceramic resistor.
More details, please check: https://www.weetcap.com/Resistors/WEET-KNP-KNS-Series-Wire-Wound-Resistor.html
（5） Fusible Resistor: Fusible resistor is also called fuse resistor. It has dual functions and has the electrical characteristics of ordinary resistor under normal circumstances. Once the voltage in the circuit increases, the current increases or a component is damaged, the safety resistor will fuse within the specified time, so as to achieve the purpose of protecting other components. The safety resistors in the circuit generally include green patch type, black drain resistance, gray in-line type and PTC. In the circuit, the fuse resistor is represented by "F", usually marked as "0", "000" or rated current value.
More details, please check: https://www.weetcap.com/Resistors/WEET-FR-Series-Fusible-Resistor.html
