ER74R02JT

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Through Hole Resistors have been in the market for a long time, providing basic resistors with todays static and dynamic currents. The ER74R02JT application field and working principle is one of the most common among these types of resistors.

Overview

The ER74R02JT is a through hole resistor specifically designed for high power large tolerances (+/- 1%) applications. It is designed with a large resistor body diameter of .35" (9mm) and a thick copper leaded body for excellent heat dissipation. The unit comes in a standard package of 20 pieces and allows for easy installation and the selection of different voltage/ current ranges. The ER74R02JT also has the ability to be used in applications such as lamps and motors, and is suitable for use in both high and low impedance uses.

Working Principle

The working principle of a through hole resistor is the same as any other resistor. Voltage is applied to the two terminals of the device and current passes through. As the voltage and current pass through, resistance is calculated and provided as an output. This is done by the resistor converting electrical energy into heat energy which is dissipated through the wide resistor body.

The ER74R02JT, like most other through hole resistors, has two sections: an inner core which is made up of ceramic material or carbon and an outer casing made of an insulating material such as porcelain. The inner core contains a linear resistance between the two terminals, while the outer casing serves as a barrier between the two, protecting against moisture and other environmental factors.

Application Field

The ER74R02JT is mainly used in low voltage/ high power applications such as lamps, motors, and heating elements. It is suitable for use in both indoor and outdoor environments and can be connected directly to the power source. The ER74R02JT is also used in high impedance applications such as variable speed electric motors and capacitor applications.

The large resistor body diameter, thick copper leaded body and high tolerance of this unit makes it an ideal choice for power ramps and drive-type frequency applications. Additionally, its large size allows for more power to be carried than would be possible with a smaller unit.

Conclusion

The ER74R02JT is a through hole resistor designed for both high and low impedance uses. Its thick copper leaded body and wide resistor body diameter provide excellent heat dissipation, while the large size allows for more power to be carried than would be possible with a smaller unit. The unit is suitable for use in both indoor and outdoor environments and is suitable for use in applications such as motors, lamps, and heating elements.

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