3386X-1-503TLF is a 3/8" square single-turn cermet trimming potentiometer designed for industrial applications requiring precise resistance adjustment. This side-adjust model features a 50 kO resistance value (code 503) with ±10% tolerance, a mechanical angle of 310° nominal, and an adjustment angle of 280° nominal. It operates over a temperature range of -55°C to +125°C with a power rating of 0.5 watt at 85°C and offers infinite resolution with a temperature coefficient of ±100 ppm/°C. The RoHS compliant version features 100% tin-plated terminations and meets U.L. 94V-0 flammability standards, making it suitable for precision calibration and adjustment in industrial and electronic equipment.