The 89PR100K is a Model 89 rectangular multiturn cermet trimming potentiometer designed for precision resistance adjustment applications. It features a 20-turn electrical travel with essentially infinite resolution, supporting a standard resistance range from 10 ohms to 2 megohms with ±10% tolerance (±20% for values below 100 ohms). The device is rated for a maximum input voltage of 200 Vdc or rms, a maximum slider current of 100 mA, and a power rating of 0.75 watts at 85°C derating to 0 watts at 125°C. Operating over a temperature range of -55°C to +125°C with a temperature coefficient of ±100 ppm/°C, the potentiometer provides excellent stability and reliability. The 89PR100K is commonly used in instrumentation, calibration circuits, and precision control applications where fine adjustment and long-term stability are essential.