42J2K7E

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Through Hole Resistors are passive electronic components used within a variety of electronic devices to regulate current flow and reduce voltage. One such resistor, the 42J2K7E, is a highly reliable component which is used in applications involving relatively low power, including motor protection, electromagnetic compatibility, and anti-jamming communications. In this article, we’ll take a look at the 42J2K7E application field and working principle.

Application Field

The 42J2K7E through-hole resistor is primarily used in low-power applications such as motor protection, electromagnetic compatibility, and anti-jamming communications. Specifically, it is used to limit current flow, provide feedback, and reduce voltage. It has a wide range of applications in the automotive, medical, defense, communications, and consumer industries.

When used in an automotive component, the 42J2K7E resistor is typically employed to protect the motor from voltage spikes. This helps to ensure the motor runs smoothly and efficiently, thereby increasing performance and extending its life. Similarly, when used in a medical device such as a pacemaker, the resistor helps to reduce the shock and interference that could lead to malfunction.

Within the defense sector, the resistor can be used to reduce the impact of electromagnetic interference, while in the communications sector it is used in anti-jamming devices to theoretically reduce the chances of signals or data being intercepted. In consumer electronics, it is often used to limit current flow, protect circuits, and reduce the voltage of a device.

Working Principle

The 42J2K7E through-hole resistor consists of a resistive element and two electrodes, used to connect this element to the circuit. When current flows through the resistive element, it generates a small amount of heat which is dissipated generation, preventing any damage to the resistive element and extending its lifespan.

The resistance of the resistor is determined by its size and the material used. The higher the resistance, the more resistance to current it will offer, the lower the resistance, then the less resistance it offers. The resistance value of the 42J2K7E resistor is fixed and can be determined simply by looking at the resistor’s markings.

The operational temperature range of the 42J2K7E resistor is -55 °C to +125 °C and it has a rated voltage of 40 volts. It has a tolerance of ±2% and a power rating of 0.2 watts. It also has a maximum power dissipation of 0.4 watts.

The 42J2K7E resistor also features excellent overload and excellent vibration performance, making it suitable for use in a wide range of applications. It is also highly resistant to shock, which also makes it suitable for use in highly-sensitive devices.

Conclusion

The 42J2K7E is a highly reliable through-hole resistor which is used in a variety of applications. Its primary use is in low-power applications, such as motor protection, electromagnetic compatibility, and anti-jamming communications. It has a fixed resistance which is determined by its size and material. It also has a maximum power dissipation of 0.4 watts and an operational temperature range of -55 °C to +125 °C. Its excellent overload and vibration performance makes it suitable for use in a wide range of applications.

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