3386C-1-503 is a 3/8" square single-turn cermet trimming potentiometer designed for industrial applications requiring precise resistance adjustment. This sealed potentiometer features a 50 kO resistance value with ±10% tolerance, a power rating of 0.5 watt at 85°C, and an operating temperature range of -55°C to +125°C. The side adjust configuration (C style) provides convenient access for calibration, with a nominal adjustment angle of 280° and infinite resolution. Key specifications include a temperature coefficient of ±100 ppm/°C, dielectric strength of 900 VAC at sea level, and insulation resistance of 1,000 megohms minimum at 500 VDC. This trimming potentiometer is ideal for circuit calibration, tuning, and adjustment applications where reliable performance and long-term stability are required.