3386S-1-503LF is a 3/8" square Trimpot trimming potentiometer from Bourns designed for precision resistance adjustment in industrial applications. This single-turn cermet potentiometer features a 50 kO resistance value with ±10% tolerance, side adjust configuration, and an adjustment angle of 280° nominal. It offers a power rating of 0.5 watt at 85°C, operates over a temperature range of -55°C to +125°C, and provides infinite resolution with a temperature coefficient of ±100 ppm/°C. The sealed construction meets industrial environmental requirements including vibration resistance up to 30 G and shock resistance up to 100 G. With RoHS compliant 100% tin-plated terminations, this trimmer is ideal for calibration, tuning, and adjustment applications in electronic circuits.