FKN500JR-91-3R9

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Through Hole Resistors

Through Hole Resistors are an essential component of most electrical circuits, providing a range of different levels of resistance to unwanted or excess current flow. They can generally be categorized into two groups: Fixed Value and Variable Value. The FKN500JR-91-3R9 is a Through Hole resistor belonging to the former category.

The FKN500JR-91-3R9 is a carbon-film resistor that has a resistance value of 500 Ohms and is rated for use up to 300V maximum as well as 25 Watts in a constant power, temperature-stable environment. It is constructed using a metal-oxide film which has been applied using a hot coil technique. The coil is heated up and the film is applied to the heating wire. The resistor is then encapsulated in an insulating material to protect it from the high voltages.

Application Field

The FKN500JR-91-3R9 is primarily designed to be used in applications requiring a constant-value or linear response to current. These applications include but are not limited to: automotive circuits, power supplies, lighting circuits, audio equipment, medical applications, and many other consumer electronics.

The FKN500JR-91-3R9 is also ideal for use in applications where precision is essential, such as: high-speed signal and power conversion, protection from interference or transients, communication and control systems, or high accuracy measurement systems.

Working Principle

The FKN500JR-91-3R9 works by limiting the amount of current that is able to flow through the respective circuit. The resistor is typically connected in-line between the power source and the electrical device, and it limits the current by generating a voltage drop across the circuit. Any current passing through the resistor will have to pass through the resistor’s material, resulting in a decrease in voltage (using Ohm’s law – Voltage = Resistance x Current).

The FKN500JR-91-3R9 can also be used to create a voltage-balancing effect in a circuit. This is achieved by connecting a resistor of a lower value in series with the FKN500JR-91-3R9. The resistor will draw more current than the FKN500JR-91-3R9, thus creating a voltage drop across the lower value resistor rather than across the larger resistor. This technique is commonly used to ensure uniformity across different components of a circuit.

The FKN500JR-91-3R9 is an effective Through Hole resistor that is suited for many different applications. It’s relatively small size and low power consumption make it ideal for use in portable or miniature electronic devices, as well as larger circuits that require precise control of current flow.

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