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SMD wire wound resistor

SMD wire wound resistor

Introduction to product description: SMD wire wound resistors are made of special alloys such as constantan, manganese copper and other special alloys made of filaments wound on the insulating tube. There is a protective layer on the outside. The protective layer has two kinds of general enamel and moisture-proof enamel. . There are two types of wire wound resistors: fixed and adjustable, as shown in Figure 4-8. The advantages of this kind of resistance are: accurate resistance, good electrical performance, reliable and stable operation, small temperature coefficient, good heat resistance, and high power. The disadvantage is that the resistance is not large and the cost is high. Wirewound resistors are suitable for circuits that require large power, and some can be used where precision resistance is required.

Product Details

product description:

The chip resistors are made of special alloys such as constantan and manganese copper. The thin wire is wound on the insulating tube. There is a protective layer on the outside. There are two types of protective layers: ordinary enamel and moisture-proof enamel. Wirewound resistors are available in fixed and adjustable types, as shown in Figure 4-8. The advantages of this kind of resistance are: accurate resistance value, good electrical performance, reliable and stable operation, small temperature coefficient, good heat resistance, and high power. The disadvantage is that the resistance value is small and the cost is high. Wirewound resistors are suitable for circuits with high power requirements, and some of them can be used where precision resistors are required. But due to the existence of inductance, it is not suitable for high frequency circuits.

Features:

1. Through professional capping or capping equipment, the copper cap is closely combined with the resistance porcelain body to ensure the stability of the resistance.

2. The basic resistance ceramic is alumina or talc, which has good stability and heat dissipation.

3. It has the characteristics of small size, good heat resistance, small temperature coefficient, high resistance accuracy, good short-term overload performance, and resistance value unchanged for many years. It can be made into a non-sensitive type, and the specifications and dimensions can be customized according to customer requirements.

4. According to customer requirements, it can be installed horizontally, vertically or formed vertically.



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