3386C-1-203LF is a 3/8" square single-turn cermet trimming potentiometer designed for precision adjustment applications. It features a 20 kO resistance value with ±10% tolerance, a 280° nominal adjustment angle, and a mechanical angle of 310° nominal. The potentiometer offers a power rating of 0.5 watt at 85°C, operates over a temperature range of -55°C to +125°C, and includes 100% tin-plated terminals for RoHS compliance. With sealed construction, UL 94V-0 flammability rating, and robust environmental specifications including 100G shock resistance, this trimmer is ideal for industrial applications requiring reliable and repeatable resistance adjustments.