The 72XR50KLF is a single-turn trimmer potentiometer from BI Technologies' Model 72 series, designed for precision resistance adjustment in electronic circuits. It features a 50 kO nominal resistance value with ±10% tolerance (±20% for values under 100 O), a 3/8" square cermet construction, and side adjustment capability via electrical adjustment slot. The device supports a maximum input voltage of 200 Vdc or rms (not to exceed power rating), with a maximum slider current of 100 mA and a power rating of 0.5 W at 85°C derating to 0 W at 125°C. It provides essentially infinite resolution with a nominal electrical travel of 244°, maximum end resistance of 2 O, and dielectric strength of 900 Vrms. This trimmer is ideal for calibration, tuning, and compensation applications in instrumentation, audio equipment, and industrial control systems where reliable single-turn adjustment is required.