3386P-1-203 is a 3/8" square single-turn cermet trimming potentiometer designed for industrial applications requiring precise resistance adjustment. This sealed Trimpot features a 20 kO resistance value (resistance code 203), top adjust configuration with P-style terminals, and offers infinite resolution with ±10% resistance tolerance. The potentiometer operates over a temperature range of -55°C to +125°C with a power rating of 0.5 watt at 85°C and a maximum voltage of 300 volts. Common applications include circuit calibration, voltage divider adjustments, and precision tuning in industrial and electronic equipment where reliable, repeatable adjustments are required.