3386Y-1-254LF is a 3/8" square single-turn cermet trimming potentiometer designed for industrial applications requiring precise resistance adjustment. It features a 250 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 top adjust design (Y style) offers a mechanical angle of 310° nominal and an adjustment angle of 280° nominal with infinite resolution. This sealed, RoHS-compliant potentiometer provides excellent environmental performance including vibration resistance up to 30 G and shock resistance up to 100 G, making it suitable for demanding industrial and instrumentation applications.