MOF1WS-390K is a surface-mount, non-polarized, chip-style thin-film resistor made by Vishay Intertechnology. It has a resistance of 390 kOhm and tolerances of 1%, 5%, 10%, and 20%. It features a small 0805 footprint and is intended for use in high-density circuits, such as cell phones, laptops, and other portable devices. The thin-film technology used in the construction of this chip-style resistor allows for stable, consistent resistance values over a wide temperature range, making it a good choice for applications that require reliable performance.