The Sprague Powerlytic 8139L 2990 17000-25DC Capacitor 36DX9489 is a round axial capacitor with a capacitance rating of 18000uf and a maximum operating voltage of 25V. It is designed for electronic components and semiconductors, specifically for use in electrical equipment and supplies. This high-quality capacitor from the reputable brand Sprague Powerlytic is a reliable and essential component for various industrial and commercial applications requiring stable and efficient power storage and management.