CorporationThe 400LXW39MEFR12.5X20 is an aluminum electrolytic radial leaded capacitor manufactured by Rubycon Corporation. It has a rating of 400uF, a maximum voltage rating of 450VDC, a life rating of 5,000 hours, an operating temperature range of -40 to +85 degrees Celsius, and a size of 12.5mm (diameter) by 20mm. This capacitor is suitable for general purpose applications, including audio, filter, timing, strobe, and power supplies. It has an electrolyte of organic semiconductor and is reflow compatible.