Temperature Coefficient:	--
Mounting Type:	Panel Mount
Bushing Thread:	3/8-32
Actuator Diameter:	0.250" (6.35mm)
Actuator Length:	0.875" (22.23mm)
Actuator Type:	Round
Termination Style:	Solder Lug
Resistive Material:	Carbon
Adjustment Type:	User Defined
Rotation:	312°
Number of Turns:	1
Series:	CMU
Power (Watts):	2W
Built in Switch:	None
Number of Gangs:	1
Tolerance:	±10%
Resistance (Ohms):	250
Taper:	Linear
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Rotary Potentiometers and Rheostats

A rotary or multi-turn potentiometer is a passive electrical component consisting of a rotating contact, called the wiper, which moves over a resistance element. The amount of resistance on the element changes as the wiper moves, and this resistance value is conveyed as an electrical signal. The CMU2511E is a linear rotary potentiometer designed specifically to provide signal boost and accuracy for a wide range of industrial and commercial applications.A rheostat is an electrical device consisting of a resistor with a rotating contact, called the wiper, which is turned to adjust the resistance on the element. The CMU2511E is a static, non-linear rheostat designed specifically to provide load control and accuracy for industrial and commercial applications.

CMU2511E Application Field and Working Principle

The CMU2511E is designed for use in a wide range of industrial and commercial applications. It is especially suited to rotary knob or joystick applications, such as those used in remote control systems, process control, test and measurement equipment, and consumer electronics.The working principle of the CMU2511E is based on the change in resistance along the element of the rheostat or potentiometer due to motion of the wiper. The resistance element consists of three layers: the top layer is a conductive layer such as graphite, the middle core layer is a dielectric material, and the bottom layer is a conductive layer. When the wiper moves along the element, the resistance on the element changes based on the amount of conductive and dielectric material it moves through. The amount of resistance at any point resembles a linear curve.The CMU2511E features a long life span and high accuracy. It has a rated life of 1,000,000 cycles, and an accuracy of 0.1% of full span. The static dissipative element offers protection against humidity and wet environments. The potentiometer can be mounted with a number of options such as PCB, thru-hole, or surface mount and is available in a variety of sizes.The CMU2511E is also RoHS compliant, meaning it meets the requirements of the European Union’s RoHS Directive, which restricts the use of certain hazardous materials in electrical and electronic equipment.

Conclusion

The CMU2511E is an versatile, reliable and accurate rotary potentiometer and rheostat for use in a wide range of industrial and commercial applications. It has a rated life of 1,000,000 cycles and an accuracy of 0.1% of full span. The static dissipative element provides protection against humidity and wet environments, and it is RoHS compliant. It is available in a variety of sizes and can be mounted with a number of options such as PCB, thru-hole, or surface mount.

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