PTR901-2015K-A103 is a 9 mm multi-ganged potentiometer with an integrated rotary switch designed for professional audio equipment. This single-section potentiometer features a knurled metal shaft with a standard length of 20 mm and is configured with a 15 kO audio taper resistance element. The device operates at a maximum voltage of 150 VAC or 20 VDC with a rated power of 0.025 watts for audio taper, and includes a rotary switch rated for 3 A at 16 VDC with a maximum contact resistance of 50 milliohms. The potentiometer exhibits excellent tracking error performance of ±3 dB, operates reliably over a temperature range of -10°C to +50°C with a rotational life of 15,000 cycles, and is RoHS compliant. It is commonly used in audio/TV sets, amplifiers, mixers, drum machines, synthesizers, DJ equipment, and multimedia sound systems where precise volume control and switching functionality are essential.