3386B-1-501LF is a 3/8" square cermet trimming potentiometer designed for precision resistance adjustment in industrial applications. This single-turn potentiometer features a 500 ohm resistance value with ±10% tolerance, side adjust configuration (B style), and infinite resolution for fine tuning. It offers a power rating of 0.5W at 85°C with a maximum voltage of 300V, mechanical angle of 310° nominal, and adjustment angle of 280° nominal. The sealed construction provides environmental protection with insulation resistance of 1,000 megohms minimum and dielectric strength of 900 VAC at sea level. With RoHS compliant 100% tin-plated terminations (LF designation), UL 94V-0 flammability rating, and rotational life of 200 cycles, this trimmer is ideal for calibration, tuning, and adjustment applications in electronic circuits.