LARGE CAPACITANCE ALUMINUM ELECTROLYTIC CAPACITORS (UNITED CHEMI-CON, INC. Products) Inverter-use screw terminal, 85 U37L Series Large Can Screw Terminals General Purpose U37 Grade High Ripple 350 to 500VDC Ratings RoHS Compliant 10,000 Hours Lifetime at 85 C Up to 175,000 Hours Useful Life The U37L series is a longer 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 U37L has an endurance rating of 10,000 hours at 85 C with the rated ripple current applied. The useful life can exceed 175,000 hours at 40 C and 2x 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. Summary of Specifications Screw terminals: high and low post, English and Metric thread. Capacitance range: 1,500 to 18,000F. Voltage range: 350 to 500VDC. Category temperature range: 40 C to 85 C. Leakage current: 0.02CV(A) 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: 10,000 hours at 85 C with rated ripple current applied. 10 United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com Product specifications in this catalog are subject to change without notice.Request our product specifications before purchase and/or use. Please use our products based on the information contained in this catalog and product specifications. CAT. No. E1001V 2021 U37L LARGE CAN 85 CU37L LARGE CAN 85 C LARGE CAPACITANCE ALUMINUM ELECTROLYTIC CAPACITORS (UNITED CHEMI-CON, INC. Products) Inverter-use screw terminal, 85 Engineering Bulletin Mar 2013 U37L Series U37LSeries U37L Specifications - Screw Terminals Item Characteristics Category Temperature Range 40 to 85 C Rated Voltage Range 350 to 500VDC Capacitance Range 1,500 to 18,000 F at 25 C, 120Hz Capacitance Tolerance 20% (M) at 25 C, 120Hz Leakage Current I 0.02CV ( A) or 5mA, whichever is smaller, after 5 minutes at 25 C. Where I = Max. leakage current ( A), C = Nominal capacitance ( F) and V= Rated voltage (V) Rated Ripple Current Multipliers Ambient Temperature ( C) 45 C 65 C 85 C 2.82 1.73 1.00 Frequency (Hz) DC Rated Voltage 50Hz 120Hz 300Hz 1kHz 3kHz 10kHz 350-500V 0.80 1.00 1.20 1.30 1.40 1.41 To determine maximum ripple current at a specified temperature and frequency, use the appropriate multiplier shown. Endurance The following specifications shall be satisfied when the capacitors are restored to 25 C after (Load Life) subjecting them to DC voltage for 10,000 hours at 85 C with the rated ripple current applied. The sum of the DC voltage and peak AC voltage must not exceed the full rated voltage of the capacitors. Capacitance change: 20% from initial measurement ESR change : 200% of initial specified limit Leakage current : initial specified limit Useful Life With specified standard voltage and ripple current applied, typical life as function of ambient temperature is listed below. 85 C 13,000 hours max. Capacitance change: 30% from initial measurement 65 C 47,700 hours max. ESR change : 300% of initial specified limit 45 C 175,000 hours max. Leakage current : initial specified limit Shelf Life The following specifications shall be satisfied when the capacitors are restored to 25 C after exposing them for 500 hours at 85 C without voltage applied. The rated voltage shall be applied to the capacitors for a minimum of 30 minutes, at least 24 hours and not more than 48 hours before the measurements. Capacitance change: 20% from initial measurement ESR change : 200% of initial specified limit Leakage current : initial specified limit Vibration Rating 10-55Hz, 10g sinusoidal in three axes, 2 hours per axis. Maximum Tightening Torque Terminal Code HP HL CD CP CH CA CS 1 Thread Size 10- 32 NF-2B M5x0.8-6H / - 28 NF-2B M6x1-6H 4 3 Threads Engaged 2.0 N m (18.0 in lb) 4.0 N m (35.0 in lb) 6 Threads Engaged 2.8 N m (25.0 in lb) 6.2 N m (55.0 in lb) Typical Inductance (nH) Terminal Code Case Diameter at 1MHz (mm) HP HL CD CP CH CA CS 50.8 NA NA NA NA NA 63.5 76.2 30 30 25 20 25 20 25 89.0 30 30 25 20 25 20 25 Custom Designs Custom CV values per case size and termination type may be available upon request. Contact appropriate representative with specific requirements. Product specifications are subject to change without notice. Ask for UCC product bulletins and review specifications before purchase and/or use. Please use our products based on parameters specified in our bulletins. Product specifications in this catalog are subject to change without notice.Request our product specifications before purchase and/or use. Please use our products based on the information contained in this catalog and product specifications. United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com 11 CAT. No. E1001V 2021