The 3313J-1-504E is a 3 mm square surface-mount trimming potentiometer manufactured by Bourns, designed for precision in-circuit adjustment applications. It features a 500 kO nominal resistance value with ±20% tolerance, single-turn cermet construction, and a sealed design compatible with surface-mount manufacturing processes. The device offers an adjustment angle of 220° nominal, infinite resolution, and adjustability of ±0.1% in voltage divider mode and ±0.2% in rheostat mode. With a maximum torque of 50 g-cm, rotor stop for in-circuit adjustment, and 100 cycle rotational and seal life, this trimmer is well-suited for RF applications, instrumentation, and consumer electronics requiring reliable fine-tuning capabilities. The product is RoHS compliant, AEC-Q200 qualified (Grade 1), and available in halogen-free variants.