3339P-1-501LF is a 5/16" round cermet trimming potentiometer featuring a 500 ohm resistance value with ±10% tolerance. This four-turn sealed industrial trimmer utilizes a unique planetary drive mechanism that offers precise wiper setting in a compact single-turn package size. Key electrical characteristics include 0.5 watt power rating at 85°C, 300 volts maximum operating voltage, infinite resolution, and ±100 ppm/°C temperature coefficient. The device operates over a wide temperature range of -55°C to +150°C and features RoHS compliant 100% tin-plated terminations. Common applications include precision calibration, circuit adjustment, and industrial control systems where reliable and accurate resistance trimming is required.