3386F-1-254 is a 3/8" square single-turn cermet trimming potentiometer designed for precision resistance adjustment in industrial applications. It features a 250 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 top adjust design (F style) provides a mechanical angle of 310° nominal and an adjustment angle of 280° nominal, with infinite resolution for fine tuning. Additional features include a sealed construction, UL 94V-0 flammability rating, and solderable pin terminals. This potentiometer is ideal for calibration, tuning, and trimming applications in electronic circuits where reliable and repeatable adjustments are required.