RWR80S4R99FSS73

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Through Hole Resistors – RWR80S4R99FSS73 Application Field and Working Principle

The type of resistor commonly referred to as through hole resistors are actually of three different types: carbon film, metal oxide and metal film. The particular type being discussed here is the metal film type, which is identified by the specification RWR80S4R99FSS73.

A metal film through hole resistor is a type of resistor that is comprised of a thin strip of metal, usually copper or aluminum, that is dipped in a ceramic coating to create a resistive film. This resistive film in the resistor prevents current flow from being too strong.

Application

Metal film through hole resistors are commonly used for precision applications in various fields such as telecommunications, electronic control systems, medical, automotive, industrial, military and aerospace.

One application is automotive electronics. Automotive electronics are normally of high volume and volume/cost sensitive, and metal film resistors are able to provide consistent performance and fast response. Metal film resistors are preferred for on-board automotive electronics such as brushless DC motors, sensors, injected systems, ignition systems and power distributions.

Metal film resistors also find application in military systems. In military systems, metal film resistors are used in a broad range of applications such as defense electronics, communication systems, sonar systems, night vision, radar alarms, navigation systems, satellite communication links and general aerospace systems.

Working Principle

Metal film resistors operate on the principle of Ohm\'s Law. Ohm\'s Law states that, when a constant voltage is applied across a conductor, the current through it is proportional to its resistance. In a metal film resistor, the current is carried through a thin strip of metal that is dipped in a ceramic coating to provide the required resistivity.

The ceramic layer provides the desired resistivity of the resistor and the strip of metal regulates the flow of current. As the current passes through the metal film, some of its energy is dissipated in the form of heat. This dissipated energy is commonly known as Joule\'s Law. When the current is reduced, the amount of dissipated energy also drops, reducing the heat generated by the resistor.

The resistance value of the metal film resistor is an important factor to consider when selecting the right device for the application. The resistance of a metal film resistor is determined by its geometry, the material used, and the thickness and density of the ceramic coating that is applied. Generally, resistors with higher resistance values have a lower power dissipation capacity and vice versa.

Conclusion

Metal film resistors have a wide range of applications in various fields, such as telecommunications, automotive, industrial, and military and aerospace. They are widely used due to their precision applications and their low power dissipation. The resistance of a metal film resistor is determined by its geometry, the material used, and the thickness and density of the ceramic coating that is applied. As a result, the selection of the most suitable design is critical for the performance of the device.

The specific data is subject to PDF, and the above content is for reference