PTL30-15G1-103B1 is a slide potentiometer with integrated LED from Bourns' PTL Series, designed for professional audio applications. This model features a 30 mm travel length with a 15 mm lever, green LED indicator, center detent option, and 10 kO resistance value with standard ±20% tolerance. The potentiometer supports multiple resistance tapers (linear and audio) and delivers 0.1 watt power rating at 30 mm travel, with end resistance of 20 ohms maximum. The green LED operates with a forward voltage of 3.3–4.0 V and peak emission wavelength of 530 nm, providing visual feedback during operation. Commonly used in mixing consoles, drum machines, keyboards, synthesizers, and equalizers, this component combines precise potentiometer control with integrated LED indication for enhanced user interface design.