91A1D-B24-B18L

Temperature Coefficient:	±1000ppm/°C
Mounting Type:	Panel Mount
Bushing Thread:	3/8-32
Actuator Diameter:	0.250" (6.35mm)
Actuator Length:	0.750" (19.05mm)
Actuator Type:	Slotted
Termination Style:	PC Pins
Resistive Material:	Conductive Plastic
Adjustment Type:	Side Adjustment
Rotation:	300°
Number of Turns:	1
Series:	91
Power (Watts):	1W
Built in Switch:	None
Number of Gangs:	1
Tolerance:	±20%
Resistance (Ohms):	50k
Taper:	Linear
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Rotary Potentiometers, Rheostats

A 91A1D-B24-B18L is a type of Rotary Potentiometer, which is a two-terminal device capable of measuring electrical resistance across its terminals. It contains a resistive element that can be adjusted in one, two or three dimensions to form a contact gap or a resistor network. The resistance can be adjusted from minimum to maximum by rotating an adjusting screw, knob or spindle. The working principle of a Round Potentiometer works by connecting two resistors electrically in parallel, the ends of which are connected to two output lines. When the adjustment knob is rotated, one of the resistors short-circuits, while the other resistors remain unchanged and the circuit is still complete.In a 91A1D-B24-B18L, the resistive element is formed in a round shape and is mounted between two conductive terminals, with a rotating shaft or spindle connected to the centre. The spindle has a conducting element which is connected to the moveable wiper contact which engages the resistive element. When the spindle is rotated, the wiper contact moves along the resistive element, changing the resistance between the two terminals. As the resistance increases, the voltage across the terminals decreases.The 91A1D-B24-B18L is primarily used as a variable resistor, usually as a potentiometer, in applications such as mixers, amplifiers and sound systems, as well as for electronic instrumentation and controls. The device is also often used as a rheostat, a variable voltage divider, to adjust the voltage output from a power supply or to vary the speed of an electric motor. The device can also be used as a variable resistor in load-balancing circuits.In a 91A1D-B24-B18L, the precision of the resistance element can be adjusted by using the wiper contact as a fine control. The linearity of the resistance element can be adjusted with a coarse control rotating the spindle the desired amount. The device has a fairly good electrical isolation, typically between 40 and 500 volts, depending on the model.When manufacturing 91A1D-B24-B18Ls, both the flexible resistive element and the mechanical components should be accurately machined to provide a precise adjustment and a long service life. The use of high-quality materials also ensures that the device has a long life and is able to handle high currents.Overall, the 91A1D-B24-B18L is a versatile and reliable device which can be used to accurately control the resistance in many different applications. By understanding the working principle of the device, users can make the best selection for their applications.

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