3386W-1-501LF is a 3/8" square Trimpot® trimming potentiometer designed for precision resistance adjustment in industrial applications. This single-turn cermet potentiometer features a 500 ohm resistance value with ±10% tolerance, side adjust configuration (W style), and sealed construction for enhanced reliability. The device offers infinite resolution with a 280° nominal adjustment angle, 0.5W power rating at 85°C, and maximum operating voltage of 300V. It features 100% tin-plated (RoHS compliant) terminations with 2.54mm (0.100") pin spacing. Common applications include circuit calibration, voltage division, and precision trimming in electronic equipment where reliable, repeatable adjustments are required.