The BOURNS part 3312J-1-503E is a precision ceramic trimmer resistor designed to provide stable and accurate resistance adjustment in various electronic applications. With a resistance value of 50K Ohm and a tolerance of 20%, this trimmer is capable of precise adjustments to meet specific circuit requirements. It has a power rating of 0.1W (1/10W) and features 1 electrical turn and 1 mechanical turn for easy and convenient operation. The trimmer is compact in size, measuring 2.5 x 2.8 x 1.7mm, and utilizes a J-Hook SMD package for efficient mounting on surfaces. It is supplied in tape and reel packaging for automated assembly processes.