381LQ681M400A452 is a compact, high ripple snap-in aluminum electrolytic capacitor designed for applications requiring high capacitance in a smaller form factor. This capacitor features a capacitance of 680 µF with a rated voltage of 400 Vdc and a surge voltage of 450 Vdc. It operates over a temperature range of -25 °C to +105 °C and offers a capacitance tolerance of ±20%. The nominal case size is 35 x 50 mm (D x L), with a maximum ESR of 0.268 ohms at 120 Hz and 0.121 ohms at 20 kHz, and ripple current ratings of 2.12 A at 120 Hz and 2.97 A at 20 kHz at +105 °C. This capacitor is ideal for power supply filtering, inverters, and other high-performance electronic equipment where compact size and high ripple current capability are essential.