D75K800E

Series:	Dividohm®210
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	800 Ohms
Power (Watts):	75W
Tolerance:	±10%
Adjustment Type:	Slide
Diameter:	0.563" OD, 0.313" ID (14.30mm x 7.94mm)
Length:	6.000" (152.40mm)
Mounting Type:	Chassis Mount
Termination:	Solder Lug
Package / Case:	Radial, 3 Lead, Tubular

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Adjustable Power ResistorAn adjustable power resistor, also known as an adjustable power resistor (D75K800E or R75K800E), is a power resistor with adjustable conductance. It is used as a voltage regulator for controlling the voltage output of a power supply, as a safety fuse to limit voltage surges, to limit the current flow in a circuit, or as a resistor to reduce or limit the flow of energy to a component. Adjustable power resistors are typically designed for use in applications such as audio amplifiers, dummy loads, power supplies, lighting circuits, and motor drives.An adjustable power resistor is composed of a conductive metal film that is deposited or sprayed onto an insulating ceramic material. The metal film is then treated with a catalyst to make it conductive. By adjusting the resistance value of these resistors, an engineer can control the amount of current flowing through the device. The adjustable power resistors typically can be adjusted in a range from zero to the maximum rated resistance value.The basic working principle of adjustable power resistors is based on ohm’s law which states that the current flowing through a resistor is proportional to the voltage applied and inversely proportional to the resistance. The adjustment of resistance provides control of the current in the circuit and thus of the power rating of the application.The D75K800E adjustable power resistor has a maximum rated power of 800 Watts and a maximum voltage rating of 500 Volts. It is designed to be used in high-power, high-voltage applications that require adjustable voltage and current control. It is also characterized by a high degree of stability over a wide range of temperatures.The application of adjustable power resistor D75K800E can be broadly categorized into two types: for ac and for dc. In ac applications, these resistors can be used to regulate current and voltage to a specific load and also control the power gain of an amplifier. When used in dc applications, the D75K800E is suitable for buck converters, battery chargers, load balancing, and power distribution systems.The major advantages of adjustable power resistors are the ability to adjust the power dissipation, and the relatively low power loss due to the small area. Additionally, the D75K800E offers low noise generation during operation and a high-temperature-resistant rugged construction. It can also provide protection from voltage fluctuations and overcurrents in many applications.In summary, adjustable power resistors are a type of power resistors with adjustable conductance, used for various applications, such as voltage and current regulation, dummy loads, and lighting circuits. The D75K800E adjustable power resistor has a maximum rated power of 800 Watts and a maximum voltage rating of 500 Volts making it suitable for high-power, high-voltage applications that require adjustable voltage and current control. It can also provide protection from voltage fluctuations and overcurrents, and can be used for both AC and DC applications.

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