U36D Series
Large Can
Screw Terminals
High Ripple
Up to 550VDC
Rated Voltage
Dimensions in
Inches
RoHS Compliant
85C
Maximum
Temperature
The U36D series is ideal for inverter applications requiring high ripple current capabilities. With a
voltage range through 550 volts, the number of capacitors in series can be reduced. The U36D
capacitors offer very large capacitance of up to 2.2F and a maximum operating temperature
of 85C. These capacitors are available with a variety of high current English or Metric thread
terminals. Mounting options available are a three-footed clamp or bottom stud. (A special order
two-footed clamp is also available for selected diameters.) All case size dimensions are based on
inches. Custom designs are available upon request.
Summary of Specifications
Screw terminals: high and low post, English and Metric thread.
Capacitance range: 68F to 2.2F.
Voltage range: 6.3 to 550VDC.
Category temperature range: 40Cto85C.
Leakage current: 0.02CV(A) or 5mA, whichever is smaller, after 5 minutes at25C.
Standard capacitance tolerance: 20%
Nominal case size (DL): D = 35mm (1.375) to 89mm (3.500); L = 41mm (1.625) to
220mm (8.625).
Rated lifetime: 2,000 hours at85C with rated ripple current applied.
86 United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
U36D
LARGE CAN 85CU36D
LARGE CAN 85C
U36D Series
U36D Specifications - Screw Terminals
Item Characteristics
Category Temperature Range 40 to85C
Rated Voltage Range 6.3 to 550VDC
Capacitance Range 68F to 2.2F at25C, 120Hz
Capacitance Tolerance 20% (M) at25C, 120Hz
Leakage Current I 0.02CV (A) or 5mA, whichever is smaller, after 5 minutes at25C.
Where I = Max. leakage current (A), C = Nominal capacitance (F) and V= Rated voltage (V)
Rated Ripple Current Multipliers Ambient Temperature (C)
55C 65C 75C 85C
2.39 2.22 1.67 1.00
Frequency (Hz)
50Hz 120Hz 300Hz 1kHz 3kHz
0.8 1.0 1.1 1.3 1.4
Endurance The following specifications shall be satisfied when the capacitors are restored to25C after
(Load Life) subjecting them to DC voltage for 2,000 hours at 85C 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 : 300% of initial specified limit
Leakage current : initial specified limit
Shelf Life The following specifications shall be satisfied when the capacitors are restored to25C after
exposing them for 500 hours at 85C 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 : 300% of initial specified limit
Leakage current : initial specified limit
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com 87