25J75R

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Through Hole Resistors

Through hole resistors, also known as THRs, are electronic components found in virtually every electronic device. They are used to regulate the current flowing through the circuit, to protect components from overloads, and to create low-voltage feedback for certain types of motors. One popular type of through hole resistor is the 25J75R.

25J75R Application Field

The 25J75R is a 3-watt, 100 ohm, carbon composition resistor with a ±5% tolerance range. This particular resistor is often used in DC output circuits, such as AC-DC adapters, DC-DC converters, and audio amplifiers. It is also used for basic voltage division applications, or to reduce voltage ripple in circuits with high signal frequency. It can also be used in high-temperature applications, as it can tolerate temperatures up to 900 degrees Fahrenheit.

25J75R Working Principle

The 25J75R resistor works by controlling the flow of current in a circuit. It does this by changing the voltage levels between two points in the circuit. The amount of resistance, or ohm rating, of the resistor determines how much the voltage levels will be changed. The 100 ohm rating of the 25J75R used in this application provides a relatively low amount of resistance, meaning it won’t have much of an effect on voltage levels. However, the 3-watt rating ensures that the resistor can handle higher levels of current that may be present in the circuit.

The 25J75R resistor also works to dissipate any excess electrical energy that may be present in a circuit. Whenever a current is passed through a resistor, it will create a bit of heat. This heat is dissipated into the environment, reducing the overall temperature of the circuit. This process helps to protect sensitive components, such as capacitors, transistors, and integrated circuits, from excessive levels of heat.

Conclusion

The 25J75R through hole resistor is a useful and versatile device for many electrical applications. It has a low resistance rating and a high wattage rating, allowing it to control current and voltage levels in a circuit while safely dissipating any excess heat. While this particular resistor may be somewhat specialized, it is a great example of the type of component found in many different electronic devices.

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