RSF50SJR-PN20R

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Through Hole Resistors are among the most popular types of resistors available on the market. The RSF50SJR-PN20R is one such product that offers flexibility and dependability. Before delving into the specifics of the RSF50SJR-PN20R, one must first understand the basic properties and characteristics of Through Hole Resistors.

What are Through Hole Resistors?

Through Hole Resistors (also known as THRs) are a type of resistor that is typically used in applications requiring a higher power rating than a surface-mount resistor. The name comes from the fact that the resistor is inserted into a hole in the printed circuit board (PCB) to make contact with two or more conductive areas of the circuit.

These resistors consist of a resistor core, encased in a ceramic-filled epoxy tube, or a stamped metal or plastic sheet. The top of the resistor body is typically marked with identifying information such as the resistor’s resistance, tolerance, power rating, temperature coefficient, and sometimes the manufacturer\'s name.

THRs are available in different types of packages, including axial-lead (with two leads on opposing ends of the resistor body extending from the central core), body-type (with two opposing leads extending from one side of the resistor body), sand-cast (a body-type package that features a pre-formed opening for insertion into a board hole) and wire-wound (a body-type package that encases the resistor core within a winding of insulated wire for enhanced power rating).

Application Field and Working Principle of RSF50SJR-PN20R

The RSF50SJR-PN20R is a through-hole resistive device with a power rating of 50+, low voltage drop, and excellent stability. It is designed to provide stable electrical properties in the most diverse operating environments. This resistor has a wide operating range, from minus-40 degrees Celsius to +125 degrees Celsius, and is highly reliable even when used in high temperature, high humidity, and other harsh environments.

The power rating of the RSF50SJR-PN20R is 50W, with a tolerance of +/- 2%. It also has a temperature coefficient of 25ppm/ degrees Celsius, a max voltage of 180V, and a max current of 8A. The resistor body is constructed from high performance ceramic and encapsulated in a black molded epoxy, providing additional protection against dust, moisture, and mechanical shock.

This resistor is ideally suited for a variety of applications, including automotive, industrial, and consumer electronics. In automotive applications, the RSF50SJR-PN20R can be used as a negative feedback component to help reduce noise and vibration in electronic systems. In industrial settings, it can be used to limit the current drawn by a load in systems with high power requirements. In consumer electronics, the high voltage rating of this resistor makes it perfect for a variety of small power devices such as cell phones and tablets.

The operating principle of the RSF50SJR-PN20R revolves around the conversion of electrical energy into heat. In the presence of electric current, the resistor material generates resistance that dissipates energy in the form of heat. The diameter of the resistor, in addition to the material type and Power Rating, determine the amount of heat that can be generated and the rate at which it is dissipated.

Conclusion

The RSF50SJR-PN20R is a reliable and versatile through-hole resistor that combines high power rating, low voltage drop, and excellent stability into one compact package. With its wide operating range and high resistance material, the RSF50SJR-PN20R is a perfect component for automotive, industrial, and consumer applications that require stable resistor performance in harsh environments. Its operation is based on the conversion of electrical energy into heat, and its power rating and diameter determine the amount of heat generated and the rate at which it is dissipated.

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