392050M9492 Potentiometers, Variable Resistors

Temperature Coefficient:	--
Mounting Type:	Panel Mount
Bushing Thread:	1/4-32
Actuator Diameter:	0.125" (3.18mm)
Actuator Length:	0.594" (15.09mm)
Actuator Type:	Slotted
Termination Style:	PC Pins
Resistive Material:	Conductive Plastic
Adjustment Type:	Top Adjustment
Rotation:	295°
Number of Turns:	1
Series:	392
Power (Watts):	0.5W, 1/2W
Built in Switch:	None
Number of Gangs:	1
Tolerance:	±10%
Resistance (Ohms):	5k
Taper:	Linear
Moisture Sensitivity Level (MSL):	--
Part Status:	Not For New Designs
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Rotary potentiometers are electrical components often used in electronic circuits to measure the position of a rotating shaft, while sometimes also controlling its movements. Commonly known as a pot, the unit consists of a rotary contact (also known as the wiper) that can run along a resistive element, for example a carbon track or conductive plastic wiper. As the contact moves, its resistance varies, directly controlling the amount of current that passes through the circuit.Rheostats are variable resistors used to adjust the flow of current in a circuit. Whereas a potentiometer is a three-terminal resistor with a sliding or rotating contact, a rheostat is a two-terminal resistor, used primarily to control current. Rheostats can also be used to vary the voltage supplied to devices such as motors, and can be found in a wide range of applications - from low noise signal amplifiers and audio preamplifiers to signal pickups, battery chargers, and speed control applications.The number 392050M9492 refers to a rotary potentiometer from the 3920 series, made by the company M9492. This particular unit is rated at 10 kOhms and is a single-turn, panel mount unit. This means it can be mounted into a panel or enclosure and is ideal for space saving applications. The unit also has 3 terminals: wiper terminal, terminal A, and terminal B. The wiper is the variable moving contact, while terminals A and B are the fixed end points of the resistor.The 392050M9492 can be used as a rotating control knob for volume control, crossovers, equalizers, and other audio applications. It is also useful in motor speed control applications, instrumentation, automotive and military equipment, as well as robotics. The unit is well suited to industrial applications, signifying its high tolerance to physical abuse, as well as temperature and environmental changes.In terms of working principle, the 392050M9492 rotary potentiometer functions as a voltage divider and variable resistor. In the off position, the wiper contacts no part of the resistive element, and consequently no current passes through the circuit. As the user rotates the control knob, the wiper moves along the resistive element, creating a path for the current to travel. The further along the element the wiper is, the greater the resistance and thus the less current that will pass through.By measuring the amount of resistance at the wiper contact when compared to the fixed terminals (A and B), the pot can be used to determine the angular position of the control knob. As the wiper moves along the resistive element, the resistance changes, providing an indication of the knob\'s position based on the voltage readings from the circuit.In conclusion, the 392050M9492 from M9492 is a rotary potentiometer designed to measure the relative position of a rotating control shaft, as well as determining the amount of current that passes through the circuit. Its primary applications include audio volume control, motor speed control, instrumentation, automotive and military equipment, and robotics. In terms of its working principle, the potentiometer functions as a variable resistor and voltage divider, measuring the voltage readings of the circuit to determine the knob\'s angular position.

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