50k Potentiometer Trimmer 503

These 50k multi-turn trimmer potentiometers are the most commonly used value 
PACKAGE INCLUDES:
50k Ohm Multi-turn Trimmer Potentiometer
KEY FEATURES OF 50k OHM MULTI-TURN TRIMMER POTENTIOMETER:

These potentiometers are precision multi-turn type.   They are most often used to dial in an exact resistance / voltage value such as for setting reference voltage for a comparator circuit.

Wiper pin-2 is the center pin.  Turning the adjustment screw CW increases the resistance between pin-1 and the wiper while decreasing the resistance between the wiper and pin-3.