3386F-1-203 is a 3/8" square single-turn cermet trimming potentiometer designed for industrial applications requiring precise resistance adjustment. This top-adjust model features a 20 kO resistance value with ±10% tolerance, a power rating of 0.5 watt at 85°C, and operates over a temperature range of -55°C to +125°C. The potentiometer offers infinite resolution with an adjustment angle of 280° nominal and a mechanical angle of 310° nominal. It features a sealed construction with solderable pin terminals, a maximum torque of 5.0 oz-in., and meets UL 94V-0 flammability standards. This component is ideal for calibration, tuning, and trimming applications in electronic circuits where reliable and repeatable adjustments are required.