JVR20N431K is a standard E-capacitor from Joyin. It is a polarized aluminum electrolytic capacitor, with a rated capacitance of 20uF (20 microfarad) and a rated voltage of 35V. It has a tolerance of ±20 percent and a high ripple current capacity. The size of this capacitor is 6.3 mm diameter by 11mm length. It is commonly used in filtering and power supply applications.