The Bourns 3540S-1-203 is a 20 kΩ, 10-turn rotary potentiometer built for precise front-panel adjustments in equipment and test rigs. It is a single-gang, panel-mount device with a 6.35 mm (0.25 in) shaft and solder-lug termination, rated for up to 2 W, based on a wirewound element. The 10-turn travel provides fine resolution across the 20 kΩ track, making it well suited for calibration, instrumentation, and other precision-adjustment tasks where repeatable settings are critical.
