OJ3945E-R52

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The OJ3945E-R52 is a through hole resistor, specifically a wattage metal oxide film resistor. This type of resistor is used in several different fields and applications, and it is also important to understand its working principle in order to correctly make use of it.

Applications

The OJ3945E-R52 is typically used in power management systems, instrumentation systems, and other high-temperature applications. It is a fixed-value resistor, meaning the value does not change, and its tolerance rating ranges from 0.2 to 5%. These resistors are also able to handle up to 3W of power without breaking down.

The OJ3945E-R52 is great for use in power management systems due to its high-temperature tolerance, its relatively high power rating, and its fixed-value resistor design. It can also be used for precision applications due to its tolerance rating. The resistor is often used in instrumentation or automation systems where high-precision systems are required.

The resistor is also used in audio systems, such as amplifiers and equalizers, television systems, and other electronic devices where high-power resistors are required. The OJ3945E-R52 is particularly useful in high-temperature environments, as metal oxide films are better suited for these types of conditions.

Working Principle

The OJ3945E-R52 is a metal oxide film resistor, which takes advantage of the electrical resistivity of metal oxide films. These films are formed by vaporizing a metal oxide (such as tantalum or aluminum oxide) and then deposition on an insulating substrate. The film is then treated to form a resistive layer.

The actual resistivity of the material is determined by the metal used, as well as the concentration of oxygen in the air, and other variables. Since this type of resistor is based on a series of layers, its resistive value remains constant, regardless of temperature.

The OJ3945E-R52 is also designed with an integrated heat sink, which helps dissipate the heat generated by the resistor during operation. This is important as it can help prevent the resistor from overheating and failing.

Conclusion

In conclusion, the OJ3945E-R52 is a through hole, wattage metal oxide film resistor. It is used in power management systems, instrumentation systems, and other high-temperature applications. Its working principle is based on metal oxide films, and its resistive value remains constant regardless of temperature. It also has an integrated heat sink to help dissipate the heat generated by the resistor during operation.

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