3386B-1-502LF is a 3/8" square single-turn cermet trimming potentiometer designed for industrial applications requiring precise resistance adjustment. It features a 5 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 side adjust configuration (Model B) provides convenient access for calibration, with a mechanical angle of 310° nominal and adjustment angle of 280° nominal. Key specifications include a temperature coefficient of ±100 ppm/°C, insulation resistance of 1,000 megohms minimum at 500 VDC, and UL 94V-0 flammability rating. The LF suffix indicates 100% tin-plated RoHS compliant terminations, making it suitable for lead-free assembly processes in precision trimming applications.