L225J75R

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Introduction

Chassis mounted resistors, or commonly called motherboard mounted resistors, are used in many different types of electronic equipment to regulate power levels, provide protection against electrical hazards, and are also used for engineering or testing purposes. Commonly used in the electronics industry are the L225J75R mounted resistors. This type of resistor is designed specifically for applications requiring very high power levels, such as those used in military equipment, communications equipment, power line control, and professional audio systems.

Application Field

The L225J75R chassis mounted resistors are designed to be used in military and commercial electronics. These resistors have proved remarkably dependable in powering sensitive electronic components, such as those found in missiles, aircraft, spacecraft, and communication systems. They have been tested extensively and their performance has exceeded stringent military requirements, meeting space-level specifications for high power applications.

The L225J75R also provides reliable and accurate voltage regulation in the main power supply of all types of military and commercial air-crafts, missiles, and communication systems. It is used to protect the delicate electronic components from electrical hazards while maintaining accuracy and smooth operation. This type of resistor is also used in the audio applications of professional audio systems, providing filtering, impedance matching, and audio compression with maximum fidelity.

Working Principle

The operating mechanism of the L225J75R chassis mounted resistor works on the principle of adiabatic Joule heating. The resistor is subjected to sustained current flow, and in accordance with Ohm\'s Law the voltage drop across the resistor is equal to the current flow times the resistor\'s resistance. With the increased current flow, the temperature of the resistor increases, resulting in a higher thermal dissipation and a corresponding increase in resistance.

The increased heat output causes the resistance to increase further, thus decreasing the total current flow through it. In this way, the resistor functions as an effective current regulator and will protect the circuit components from possible thermal overloads. The long-term stability of the resistor is ensured by its ability to self-regulate and perform within specified temperature ranges.

Conclusion

The L225J75R chassis mounted resistor is an extremely reliable and highly efficient voltage regulator and power supply protection device. It provides effective protection against electrical hazards and ensures that the components are powered without failure or damage. It is suitable for use in a wide variety of applications and is capable of providing accurate and long-term protection in even the most demanding of conditions.

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