Series:	PTV
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Taper:	Logarithmic
Resistance (Ohms):	1M
Tolerance:	±20%
Number of Gangs:	1
Built in Switch:	None
Power (Watts):	0.05W, 1/20W
Temperature Coefficient:	--
Number of Turns:	1
Rotation:	300°
Adjustment Type:	Top Adjustment
Resistive Material:	Carbon
Termination Style:	PC Pins, Board Locks
Actuator Type:	Flatted
Actuator Length:	0.787" (20.00mm)
Actuator Diameter:	0.236" (6.00mm)
Bushing Thread:	--
Mounting Type:	Through Hole, Snap In

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Rotary Potentiometers and Rheostats

Introduction

Rotary potentiometers and rheostats are types of variable electrical resistors. They are often used to adjust the performance of a wide range of electronic equipment and components. Rotary potentiometers and rheostats are two different types of electronic components. The rotary potentiometer is a variable resistor capable of adjusting a current or voltage while the rheostat can only adjust current.

PTV111-4420A-A105 Application Field and Working Principle

The PTV111-4420A-A105 is a single-turn rotary potentiometer, which is used to easily control resistance in an electrical circuit. It has a single terminal that is connected to ground, a second terminal connected to the wide brush, and a third terminal connected to the narrow adjustable brush. The purpose of this device is to replace a mechanical user-controlled adjustment of resistance, which can be done by turning the knob to adjust the resistance within its range of values.When the user adjusts the resistance value of the PTV111-4420A-A105, the galvanometer (meter coil) vibrates, and the resistance between the two points alters. This produces a voltage signal in the first terminal and the two others depend on the resistance between them. By adjusting the resistance value, the voltage between the two terminals can be adjusted. The system of the 110-4420A-A105 rotary potentiometer is relatively simple. Its mechanism consists of three resistive elements, a fixed resistor (R1), a constant resistor (R2), and a variable resistor (R3). The fixed resistor and the adjusting knobs connect all three resistive elements together in a single step and, in this way, form a voltage divider.The voltage divider is a two-terminal electrical circuit that contains two resistive elements in a series connection. By adjusting the value of the third resistor (R3), the total resistance of the network can be adjusted and, consequently, the output voltage can be modified. The fixed resistor and the one adjustable from the knob are arranged in a certain way to accurately duplicate the resistance values, so that users can choose the desired resistance value simply by turning the knob.

Advantages

The PTV111-4420A-A105 is a versatile and efficient instrument for resistance adjustment. Its design allows a wide range of adjustable resistance values with high accuracy, and it requires no external biasing for its function. It is also a compact device, which makes it ideal for applications where space is limited. Moreover, the PTV111-4420A-A105 is easy to use and maintain and requires no additional components, such as wiring or control circuitry. The rotary potentiometer is ideal for continuous adjustment of resistance values over a wide range, and is suited for controlling motor speed, audio volume, fan speed, and many other applications.

Conclusion

The PTV111-4420A-A105 is a popular rotary potentiometer and a great tool for users who need to easily adjust resistance values. It offers an efficient and accurate way to adjust resistance values, and it is easy to use and maintain. The PTV111-4420A-A105 can be used in a variety of applications, from controlling motor speed to audio volume and many other applications.

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