The 3543S-1-202L is a 3-turn precision potentiometer manufactured by Bourns, featuring a nominal resistance of 2,000 O with ±5% tolerance and 0.062% resolution. It delivers independent linearity of ±0.25% and an effective electrical angle of 1080° +10°/-0°, with a maximum noise specification of 100 ohms ENR. The device operates reliably across a temperature range of +1°C to +125°C with a temperature coefficient of ±50 ppm/°C, and withstands 1,000 VAC dielectric voltage. Mechanically, it features a bushing mount with gold-plated solder lugs, a torque rating of 0.35 N-cm (running), and exceptional rotational life of 300,000 shaft revolutions with no-load operation. This precision potentiometer is ideal for instrumentation, servo systems, and precision analog control circuits where high linearity, low noise, and long operational life are essential.