Long-life aluminium electrolytic capacitors from 1500 to 22,000uf

July 22, 2013 // By Julien Happich
United Chemi-Cons has launched the U-37 family of screw terminal aluminium electrolytic capacitors, offered in capacitance ranges from 1500 to 22,000uf. The family has three series.

The U37F has an endurance rating of 5,000 hours at +85°C with the rated ripple current applied. Useful life can exceed 150,000 hours at 45°C and 1.5 times the ripple current. The U37L has an endurance rating of 10,000 hours at 85°C with the rated ripple current applied. Useful life is 175,000 at +45°C and 1.5 times the ripple current. The U37X has an endurance rating of 15,000 hours at 85°C with the rated ripple current applied and a useful life of 175,000 at 45°C and 1.5 times the ripple current applied. Voltage ratings range from 350 VDC to 500 VDC, standard capacitance tolerance is +20%, and leakage current is 0.02 CV (uA) or 5mA, whichever is smaller, after 5 minutes at +25°C. A 12,000uF, 500-V capacitor has a can size of 89x219 mm, maximum ESR (equivalent series resistance) of 8 m) at +25°C and 120 Hz, and rated ripple current of 33.5 A RMS at +85°C and 120 Hz, 40.2A RMS at +85°C and 300 Hz, and 46.9 A RMS at +85°C and 3 kHz.

Visit United Chemi-Con at www.chemi-con-com