72PR1MEGLF

Series:	72
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	1 MOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	1
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Square - 0.375" x 0.375" Face x 0.187" H (9.53mm x 9.53mm x 4.75mm)

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Introduction
Trimmer potentiometers, also known as multiturn potentiometers, are a form of variable resistor with a specific resistance value. They are used to precisely adjust the resistance between two terminals. The term “trimmer” is usually used to indicate a variable resistor, and a potentiometer describes the device’s circuitry used to adjust its resistance value.72PR1MEGLF Application Field and Working Principle
The application domain of 72PR1MEGLF potentiometers is mainly on power systems, test and measurement instruments, telecom and network equipments, industrial automation, and many other industrial fields.The 72PR1MEGLF is a precision, multi-turn, single point adjustable trimmer potentiometer with a resistance range of 1 to 10 megohms. This trimmer consists of two components: a resistor and an element that can be rotated to adjust its resistance value. The resistor is made up of conductive tracks on an insulating substrate. Each track has a different width and extends along the length of the chip. The element is considered a wiper, and when it moves along the tracks, it makes contact with each one and adjusts the resistance accordingly.When a potential difference is applied across the resistor, current flows through it. When the element wiper is moved along the tracks, it varies the resistance of the resistor and the current flowing through it. The resistance of the resistor is designed to have a linear relationship with the rotation angle of the wiper such that when it is rotated a certain angle, the resistance of the resistor changes an amount proportional to the angle turned. This makes it easier to precisely adjust the voltage across a resistor to a desired amount as the rotation angle can be interpreted as a numerical value.Conclusion
The 72PR1MEGLF trimmer potentiometer is a versatile device with a wide range of applications. It is constructed from a resistor made of conductive tracks and an adjustable element that moves along a path to adjust resistance. The resistance of the resistor is designed to have a linear relationship with the rotation angle of the element wiper, allowing for precise adjustment of the voltage and current.

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