301JS682U040B is a radial aluminum electrolytic capacitor from the Type 301 series, designed for switching power supply outputs and UPS battery stiffening applications. This capacitor features ultra-low ESR and high ripple current capability, with a wide operating temperature range of -55°C to +105°C and a rated voltage of 40 Vdc (60 Vdc surge). The Type 301 series offers a 4000 hour load life and series inductance of 12 to 16 nH, enabling one capacitor to replace multiple smaller units at power supply outputs. Common applications include switching power supplies, UPS systems, and other power electronics requiring high capacitance with low equivalent series resistance.