3386C-1-503LF is a 3/8" square single-turn cermet trimming potentiometer designed for precision resistance adjustment in industrial applications. This side-adjust model features a 50 kO resistance value (code 503) with ±10% tolerance, 0.5 watt power rating at 85°C, and an adjustment angle of 280° nominal. The potentiometer offers excellent environmental performance with an operating temperature range of -55°C to +125°C, temperature coefficient of ±100 ppm/°C, and meets UL 94V-0 flammability standards. With 100% tin-plated terminations for RoHS compliance, infinite resolution, and sealed construction, this trimmer is ideal for calibration and fine-tuning applications in electronic circuits requiring reliable and repeatable adjustments.