WHD1R0FET Resistors

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Through hole resistors can be divided into three major categories: wire wound, metal film, and metal oxide. Within these categories, different types of resistors can be used depending on the application. One of these types is the WHD1R0FET, which stands for wire wound high durability 10 ohm flat heat transfer resistor. The WHD1R0FET combines the best features of all three resistor types, providing optimal performance in certain applications. This article will discuss the application field and working principle of this type of resistor.

WHD1R0FET Application Field

The WHD1R0FET is a popular choice for high current applications. It is often used in power supplies, voltage regulators, and current-limiting applications. It is also used in RF and microwave circuits for antenna matching, microwave amplifier performance tuning, and protection circuits. In addition, it is often used in precision power measurements, batteries, and the protection of sensitive components.

WHD1R0FET Working Principle

The WHD1R0FET resistor is constructed by winding an alloyed wire around a flat ceramic substrate. The wire is often made from copper or an alloy of copper and nickel, and has a thin layer of aluminum oxide, or aluminum nitride, to provide additional stability. The substrate allows heat to be dissipated more efficiently, as it spreads heat across a larger surface area. This makes the resistor less prone to overheating and breaking, allowing for more reliable performance.

The resistance value of the resistor is determined by the size of the coil, length of the wire, and the resistance of the wire itself. Additionally, the thickness of the oxide layer can also affect the resistance value. The overall resistance value can also be affected by temperature. As the temperature increases, the wire length, thickness, and resistance all decrease, resulting in a lower resistance value, and vice versa.

Conclusion

The WHD1R0FET is a type of through hole resistor that combines the best features of wire wound, metal film, and metal oxide resistors. It is often used in high current applications, such as power supplies, voltage regulators, current-limiting circuits, protection circuits, and precision power measurements. The resistance value is determined by the size of the coil, wire length, and resistance of the wire, as well as the thickness of the oxide layer. As temperature changes, the resistance value will also change.

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