D25K5R0E

Series:	Dividohm®210
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	5 Ohms
Power (Watts):	25W
Tolerance:	±10%
Adjustment Type:	Slide
Diameter:	0.563" OD, 0.313" ID (14.30mm x 7.94mm)
Length:	2.000" (50.80mm)
Mounting Type:	Chassis Mount
Termination:	Solder Lug
Package / Case:	Radial, 3 Lead, Tubular

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Adjustable Power Resistor: D25K5R0E Application Field and Working Principle

Adjustable power resistors are devices designed to provide an adjustable electrical resistance in a wide range of circuits and applications. They are widely used in many industries, from automotive and electrical communication systems to industrial motor control and more. The most common type of adjustable power resistor is the D25K5R0E, a five-terminal resistor, the terminals of which can be adjusted to control electrical resistance. This article will explore the application field and working principle of the D25K5R0E.

Field of Application

Adjustable power resistors can be used in a variety of applications. In automotive and down-hole tooling, they are often used to regulate the current flow in motors, pumps and generators. In electrical communication systems, they are used to correct the signal level. They also find use in laboratories, medical equipment, production test systems and many other applications. The size of adjustable power resistor elements can range from fractions of an ohm to hundreds of ohms, with resistance values adjustable in extremely small increments. Due to their small size, they can be used in difficult to access locations, making them a must-have component in industrial applications.In summary, adjustable power resistors are widely used in a variety of applications, providing consistent and reliable resistance control.

Working Principle

The adjustable power resistor D25K5R0E follows the principle of a semiconductor adjustable resistor. It uses a temperature compensation system consisting of two resistors and a temperature sensing diode. When a voltage is applied to the resistor, it creates a temperature-related resistance change and the temperature-sensitive diode acts to adjust the set resistance.The five-terminal resistor consists of three main parts: the temperature compensation system, the controller circuit, and the adjustment circuit. The temperature compensation resistor, also known as the “stabilizer”, senses the temperature of the adjustable power resistor and adjusts the set resistance accordingly. The adjustment is accomplished by activating the controller circuit, which modulates the voltage across the device in order to regulate the current. Finally, the adjustment circuit is responsible for changing the set resistance of the adjustable power resistor.

Conclusion

The adjustable power resistor D25K5R0E is a widely used device due to its ability to accurately regulate resistance. It is used in many applications for its size and accuracy. The adjustable power resistor follows the principle of a semiconductor adjustable resistor, which uses a temperature compensation system, a controller circuit, and an adjustment circuit to regulate the set resistance.

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