The 78PR10KLF is a 1-1/4" rectangular multiturn cermet trimming potentiometer designed for precision resistance adjustment applications. It features a 10 kO nominal resistance value with ±10% tolerance, 22 turns of electrical travel providing essentially infinite resolution, and a maximum input voltage rating of 300 Vdc or rms. The device is rated for 1.0 watt at 70°C with a maximum slider current of 100 mA, dielectric strength of 500 Vrms, and insulation resistance of 1,000 megohms minimum. It operates reliably across a temperature range of -55°C to +125°C with a temperature coefficient of ±100 ppm/°C, and features a sealed design with 85°C Fluorinert for protection against moisture and environmental contamination. This potentiometer is ideal for calibration, tuning, and adjustment applications in instrumentation, test equipment, and industrial control systems where precision and long-term stability are required.