The 3299P-1-503LF is a 3/8" square multiturn cermet trimming potentiometer designed for precision adjustment in industrial applications. This sealed unit features a 50 kO nominal resistance value with ±10% tolerance, 25 turns of effective travel, and infinite resolution for precise voltage and resistance adjustments (±0.01% voltage adjustability, ±0.05% resistance adjustability). The potentiometer operates over a temperature range of -55°C to +125°C with a temperature coefficient of ±100 ppm/°C, and is rated for 0.5 watts at 70°C with a maximum voltage of 300 volts. It includes solderable pins for reliable PCB integration, U.L. 94V-0 flammability rating, and is available in RoHS-compliant 100% tin-plated termination. The device is ideal for trimmer applications requiring stable performance across wide temperature ranges and demanding environmental conditions.