United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com

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The U37X series is the longest life version of the U37 grade series and is specifically designed to

provide the ripple current capability and long life required for high reliability inverter applications. The

U37X has an endurance rating of 15,000 hours at

85 C with the rated ripple current applied. The

useful life can exceed 175,000 hours at

40 C and 2.1x the ripple current. These capacitors are

available in a variety of high current English or Metric thread terminals. Mounting options include a

three-footed clamp or bottom threaded stud. Custom designs are also available.

Large Can

Screw Terminals

General Purpose

U37 Grade

High Ripple

350 to 500VDC

Ratings

RoHS Compliant

15,000 Hours

Lifetime at

85 C

Up to 175,000 Hours

Useful Life

Screw terminals: high and low post, English and Metric thread.

Capacitance range: 1,200 to 18,000µF.

Voltage range: 350 to 500VDC.

Category temperature range:

40 Cto

85 C.

Leakage current: 0.02CV(µA) or 5mA, whichever is smaller, after 5 minutes at

25 C.

Standard capacitance tolerance:

20%

Nominal case size (D

L): D = 50mm (2.000”) to 89mm (3.500”); L = 92mm (3.625”)

to 219mm (8.625”).

Rated lifetime: 15,000 hours at

85 C with rated ripple current applied.

Summary of Specifications

U37X SERIES

Engineering Bulletin Mar 2013