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Firgelli Robots Rotary Logarithmic Taper POT with 3 Pins

Rotary Logarithmic Taper POT with 3 Pins


Rotary Logarithmic Taper POT with 3 Pins


This rotary logarithmic taper pot is normally applied in connection with audio amplifiers. It has a resistive element that either 'tapers' in from one end to the other, or is made from a material whose resistivity varies from one end to the other. This results in a device where output voltage is a logarithmic function of the slider position.

An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a variable input from the user!


* Taper resistance: 10k ohm
* Tolerance resistance: +/-20%
* Power rating: 0.06W
* Rated voltage: 150V
* Rotation noise: ≦47mV
* Tracking error: 0~40dB+/-3dB
* Insulation resistance: DC500V(100Mohm min.)
* Withstanding voltage: AC500V/minute
* Total rotation angle: 300 degrees+/-5 degrees
* Operation force: 20~200gf.cm
* Shaft stopper force: 6Kfg.cm min
* Life cycle: 10000 turns

L: 15mm

0.2 lb

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