The 78PR200LF is a multi-turn trimmer potentiometer featuring a 1-1/4" rectangular cermet element designed for precision resistance adjustment applications. It offers a resistance range of 10 Ohms to 2 Megohms with ±10% tolerance (±20% for values below 100 Ohms), and supports a maximum input voltage of 300 Vdc or rms with a power rating of 1.0 Watt at 70°C. The device provides 22 turns of electrical travel with essentially infinite resolution, maximum end resistance of 2 Ohms, and a contact resistance variation of 1% or 1 Ohm (whichever is greater). Operating across a temperature range of -55°C to +125°C with a temperature coefficient of ±100 ppm/°C, the trimmer is sealed with 85°C Fluorinert for environmental protection and exhibits 1,000 Megohms minimum insulation resistance. This trimmer is ideal for circuit calibration, signal conditioning, and precision tuning applications in industrial and electronic equipment where reliable multi-turn adjustment and stable performance across wide temperature ranges are required.