RRS1R5E

Series:	R
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Taper:	Linear
Resistance (Ohms):	1.5
Tolerance:	±10%
Number of Gangs:	1
Built in Switch:	None
Power (Watts):	500W
Temperature Coefficient:	--
Number of Turns:	1
Rotation:	325°
Adjustment Type:	User Defined
Resistive Material:	Wirewound
Termination Style:	Solder Lug
Actuator Type:	Flatted
Actuator Length:	2.000" (50.80mm)
Actuator Diameter:	0.375" (9.53mm)
Bushing Thread:	--
Mounting Type:	Panel Mount

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Rotary Potentiometers, Rheostats

A rotary potentiometer, rheostat, or adjustable resistor is a three-terminal device that can be used to measure and control electrical signals in a variety of applications. They are commonly used to adjust the volume, brightness, or even power settings on a variety of electronic devices. Although the terms are sometimes used interchangeably, there are some key differences between the two devices.

Rotary Potentiometers

A rotary potentiometer (or pot for short) is a three-terminal device consisting of a wiper element that is driven along a resistive track or element. The pot has two fixed contacts, one to ground and one to the output of the pot. The movement of the wiper along the resistive element controls the amount of current that flows between the two fixed contacts. This produces a variable electrical signal that has resistance in direct proportion to the position of the wiper. A typical use for a rotary pot is to adjust the volume of an audio amplifier, or the brightness of a lamp or LED.

Rheostats

Rheostats are also three-terminal devices that are commonly used to control current, voltage, or power. Unlike a pot, a rheostat does not produce a variable electrical signal, it works by changing the resistance to alter the amount of current that is allowed to flow. This makes it ideal for controlling the power going to a device, or even to slowly increase the voltage to a motor in order to bring it up to maximum speed.

RRS1R5E Application Field and Working Principle

The RRS1R5E series of rotary potentiometers, from Rohm Semiconductor, is a three-terminal device designed for applications that require precision adjustment of the operating parameters of the system. It offers a high degree of accuracy and reliability, with low temperature drift and long-term stability.The RRS1R5E consists of a variable resistor element, a wiper that is driven along the element, and two fixed contacts. As the wiper is driven along the element, resistance between the two fixed contacts is changed, resulting in a variable electrical signal that has resistance in direct proportion to the position of the wiper.The RRS1R5E is typically used in a variety of applications, including voltage and current regulation, audio systems, lighting control systems, and automotive applications. It is available in standard footprints and footprints incorporating a dustproof shutter to protect against contamination.

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