FKN100FR-73-1R1

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Through Hole Resistors have been one of the major kinds of resistors in the past decades and are still widely used nowadays. FKN100FR-73-1R1 is no exception, as it is one of the most popular resistors in the through-hole resistor category. Based on its application field and working principle, this resistor is generally suitable for use in a variety of power electronic circuits where a large number of high-power switches are activated simultaneously.

FR-73-1R1 is a two-terminal (through-hole) resistor package, usually equipped with an integrated heat sink. Its power rating is about 0.1 watt, allowing it to dissipate even greater power than conventional resistors in small, tight spaces. The power rating is specified for continuous operation, meaning that the resistor can continuously dissipate the rated power without significant thermal degradation.

The resistor is mainly used in applications such as constant current regulators, active filters, and switching applications. In a constant current regulator, the FR-73-1R1 regulates the current passing through a switch according to a set value. In an active filter, the resistor limits the amount of energy passing through the filter by providing a constant current flow to the filter. In switching applications, the resistor helps to reduce the danger of electrical shock by damping the sudden surges in current which can occur during frequent or repetitive operation. Furthermore, the integrated heat sink helps to minimize thermal stress and further eliminates the chances of thermal runaway.

The working principle of FR-73-1R1 is based on the principle of ohmic heating – a phenomenon which occurs when electric current flows through a conductor. The current heats up the conductor as electrical energy is lost to the environment due to the electrical resistance of the conductor, turning the electrical energy into thermal energy. The FR-73-1R1 works based on the same principle, though as resistors they can be used to control current entering or exiting circuits more accurately.

In summary, due to its power rating and application field, FR-73-1R1 is one of the well-known through-hole resistors used in modern electronics. It is an essential part for many circuits, acting as a resistor and heat sink in order to regulate current and minimize the risks associated with thermal runaway.

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