A Single Gang Linear Potentiometer (B5K Rotary Variable Resistor) is a 3-terminal electromechanical variable resistor used to calibrate voltage levels, current limits, and sensory threshold references. Built with a durable carbon resistive element and an internal sliding wiper, turning the slotted metal shaft changes resistance smoothly across the circuit terminals. The "B" designation indicates a linear taper, meaning resistance varies in direct proportion to shaft rotation angle.

This product is featured by Famephase Electronic Accessories as an essential variable control for motor speed regulation, LED brightness dimming, power supply voltage tuning, and microcontroller analog inputs.