392JA25K

Temperature Coefficient:	--
Mounting Type:	Panel Mount
Bushing Thread:	1/4-32
Actuator Diameter:	0.125" (3.18mm)
Actuator Length:	0.875" (22.23mm)
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):	25k
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 and Rheostats - Application Field and Working PrincipleRotary Potentiometers and Rheostats are two popular electronic components in many applications. In principle, they are similar, although slight differences in their structure and operation make them suitable for different purposes.A rotary potentiometer is a three-terminal resistor with a adjustable sliding contact that provides relative resistance between the two outer terminals. An applied external voltage will cause current to flow through the resistor. The resistance of the resistor is controlled by the adjustable contact, which is usually a wiper which is moved along a conductive track. This position of the contact determines the fraction of the total resistance presented between the two outer terminals.The rheostat is similar but has two terminals and is usually used to produce variable resistances. It is mainly used for controlling current and can be used as a dimmer switch for lamps and other devices that require power control. Rheostats are also commonly used as variable voltage regulators in power supplies.The model 392JA25K is one of the most popular types of rotary potentiometers used in many different applications such as audio systems, instrumentation and control, medical and scientific instrumentation, audio/visual equipment, and test and measurement instruments. This potentiometer has a resistance range of 25K Ohms and can handle operating power up to 0.5W. It also features low noise, good temperature stability, and is available in a wide range of package sizes.The application and working principle of the model 392JA25K rotary potentiometer is easy to understand. It operates by adjusting the electrical resistance between the two contacts of the potentiometer by changing the position of the contactor. The rotary knob on the potentiometer is rotated to adjust the resistance between the terminals and the wiper arm. When the contactor is rotated, the resistance between the two terminals changes according to the position of the wiper arm. This changes the current flowing through the resistive track and consequently changes the voltage across the two terminals.The model 392JA25K also has plastic fixing screw, gold plated terminals, and self-lubricated type of bearing so that it is easy to operate.Overall, the model 392JA25K is a reliable and versatile rotary potentiometer that can be used in a wide variety of applications. It has a wide resistance range, good temperature stability, and is easy to operate. Furthermore, its use of gold plated terminals and self-lubricated bearing ensures that it is highly durable. As such, the model 392JA25K is an excellent choice for many different applications.

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