91A1A-B28-B10L

Temperature Coefficient:	±1000ppm/°C
Mounting Type:	Panel Mount
Bushing Thread:	3/8-32
Actuator Diameter:	0.250" (6.35mm)
Actuator Length:	0.875" (22.23mm)
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):	1k
Taper:	Linear
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Rotary Potentiometers, Rheostats IntroductionThe 91A1A-B28-B10L is a type of passive electronic component used to adjust the flow of electric current in a circuit. It is one of two classes of devices known as rotary potentiometers (also known as pots) and rheostats. Both of these devices serve a similar purpose, but they have different working principles, allowing them to be used in different contexts.Rotary PotentiometersA rotary potentiometer is an adjustable resistor with a rotating shaft. It has three terminals: a wiper, a ground, and a voltage. The wiper is a slider that moves across an array of contacts, while the ground and voltage terminals are connected to either side of the array. As the wiper moves across the array, the resistance between the ground and voltage terminals changes, allowing the device to measure or adjust the flow of current in the circuit.Rotary potentiometers are used in a variety of applications including volume and tone control on audio equipment, adjusting the brightness of a dimmer switch, and adjusting the speed of an electric motor. RheostatsUnlike rotary potentiometers, rheostats are two-terminal devices. They are also adjustable resistors, but with a fixed wiper and two stationary terminals. The resistance between the two terminals can be adjusted by changing the position of the wiper, allowing for precise adjustment of the current flow across the device.Rheostats are often used in applications that require a greater range of resistance than a rotary potentiometer can provide. Examples of these applications include controlling the speed of a motor, adjusting the current in a welding machine, and regulating the voltage across a circuit.ConclusionThe 91A1A-B28-B10L is a type of passive electronic component that falls into the categories of rotary potentiometers and rheostats. Both types of devices are used to adjust the flow of current in a circuit, but they differ in their working principles. Rotary potentiometers are three-terminal devices with a wiper that slides across an array of contacts, while rheostats are two-terminal devices with a wiper attached to a single stationary terminal. Both types of devices have a range of applications, including controlling the speed of an electric motor and adjusting the brightness of a dimmer switch.

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