140B00103

Temperature Coefficient:	±20ppm/°C
Mounting Type:	Panel Mount
Bushing Thread:	1/4-32
Actuator Diameter:	0.1248" (3.17mm)
Actuator Length:	0.700" (17.78mm)
Actuator Type:	Slotted
Termination Style:	Solder Turret
Resistive Material:	Wirewound
Adjustment Type:	User Defined
Rotation:	330°
Number of Turns:	1
Series:	140
Power (Watts):	2W
Built in Switch:	None
Number of Gangs:	1
Tolerance:	±5%
Resistance (Ohms):	10k
Taper:	Linear
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Rotary Potentiometers, Rheostats

Rotary Potentiometers and Rheostats or variable resistors play an integral role in a range of technological areas, such as electronics, engineering and computing. Both devices are typically used in the production of electrical devices and equipment, and are designed to work in opposition to one another; while one component increases the weight of the connection, the other increases the resistance in order to maintain a desired equilibrium. This balance is important for both devices in a range of applications. The most common of these applications are in the maintenance of a pressure level, temperature, lights, and other variables. Each device is designed to regulate the effects of an electrical current, and their individual principles of operation are dependent upon the specific application.

Rotary Potentiometers

Rotary potentiometers (RP) consist of a circular disk or wheel with electrical contacts that come into contact with the chosen material or device in which it is being applied. This rotary contact of an RP functions by using a spring-loaded tip that is set to the desired amount of resistance, and it will be forced to touch the rotating surface of the disk. When the contact is moved, either by turning the wheel or another force, the tip will move, thus changing the amount of electrical current being applied to the desired area. The amount of current being applied is dependent upon the resistance, and this resistance can be adjusted by either turning the wheel or by other means.

Rheostats

Rheostats (RH) are devices which act differently than rotary potentiometers and are specially designed to resist the flow of electricity. They consist of a dial on the exterior of the device, which can be adjusted to increase or decrease the resistance of the device. When the dial is adjusted, the current being applied to a selected area is also adjusted. The amount of current being applied will be dependent upon the setting of the dial, and this will fluctuate as the dial is adjusted or turned. RHs can be used to adjust the amount of electricity being applied to a specific purpose. For instance, if the dial is set to a certain point, only a certain amount of current will flow. This is useful in many applications where the flow of electricity needs to be limited in order to avoid damage or the risk of shock.

Conclusion

Rotary potentiometers and rheostats are two useful electronic components used for a variety of purposes in many areas. The RP acts as an adjustable resistance which can be used to adjust the level of electrical current being applied, while the RH acts as an adjustable resistance to prevent the flow of excessive electrical current. Both devices are important for the maintenance of electrical systems and therefore have become essential in modern technology.

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Part Number	Manufacturer	Price	Quantity	Description