U32D SERIES
U32D
Series
Large Can
Screw Terminals
High Ripple
6.3 to 400VDC
Voltage Range
Dimensions in
Inches
RoHS Compliant
105 C
Maximum
Temperature
Engineering Bulletin Mar 07
The U32D series allows for extremely high ripple currents for applications such as inverter designs
and motor controllers. This series of capacitors offers very large capacitance of up to 2.2F and a
maximum temperature rating of 105 C which allows a high operating temperature without sacrificing
life. 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.
L ARGE CAN 105 C
U32D
Summary of Specifications
Screw terminals: high and low post, English and Metric thread.
Capacitance range: 180µF to 2.2F.
Voltage range: 6.3 to 400VDC.
Category temperature range: 40 C to 105 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 = 35mm (1.375”) to 89mm (3.500”); L = 41mm (1.625”) to
220mm (8.625”).
Rated lifetime: 2,000 hours at 105 C with rated ripple current applied.
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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U32D Series
U32D Specifications - Screw Terminals
Item
Category Temperature Range
Rated Voltage Range
Capacitance Range
Capacitance Tolerance
Leakage Current
I
40 to 105 C
6.3 to 400VDC
180 F to 2.2F at
20% ( M ) at
25 C, 120Hz
Characteristics
Engineering Bulletin Mar 07
25 C, 120Hz
25 C.
0.02CV ( A ) or 5mA, whichever is smaller, after 5 minutes at
Where I = Max. leakage current ( A ), C = Nominal capacitance ( F ) and V = Rated voltage ( V )
Rated Ripple Current Multipliers
Ambient Temperature ( C )
≤
45 C
1.41
65 C
1.29
85 C
1.00
105 C
0.57
Frequency (Hz )
DC Rated Voltage
6.3 - 50V
63 - 80V
Case Diameter
Ø
35 -
Ø
76
Ø
35
Ø
51-
Ø
76
Ø
35
50Hz
0.95
0.90
0.95
0.82
0.90
0.95
0.80
0.81
0.82
0.80
120Hz
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
300Hz
1.03
1.06
1.03
1.12
1.06
1.03
1.19
1.14
1.12
1.19
1kHz
1.05
1.10
1.05
1.22
1.10
1.05
1.34
1.26
1.22
1.34
10kHz
1.09
1.18
1.09
1.30
1.18
1.09
1.46
1.36
1.30
1.46
50kHz
1.12
1.22
1.12
1.33
1.22
1.12
1.52
1.41
1.33
1.52
100V
Ø
51
Ø
63 -
Ø
76
Ø
35
160 - 250V
Ø
51-
Ø
63
Ø
76
315 - 400V
Ø
35 -
Ø
89
Endurance
(Load Life)
The following specifications shall be satisfied when the capacitors are restored to 25 C after
subjecting them to DC voltage for 2,000 hours at 105 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
Shelf Test
The following specifications shall be satisfied when the capacitors are restored to 25 C after
exposing them for 500 hours at 105 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
L ARGE CAN 105 C
U32D
2 / 12
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
U32D Series
Diagram of Dimensions - Screw Terminals
Large Can / Screw Terminals
Case Dimensions
Case Size
Code
A41
A54
A67
A79
A92
AA5
AB7
AD0
AE3
C48
C54
C67
C79
C92
CA5
CB7
CD0
CE3
D79
DA5
DB7
DD0
DE3
E92
EA5
EB7
ED0
EE3
EN0
Insulating
End Disk
Ø
D
0.080 (2.0)
Engineering Bulletin Mar 07
Unit: inches (mm)
L
0.040 (1.0)
1.625 (41)
2.125 (54)
2.625 (67)
3.125 (79)
3.625 (92)
4.125 (105)
4.625 (117)
5.125 (130)
5.625 (143)
1.875 (48)
2.125 (54)
2.625 (67)
3.125 (79)
3.625 (92)
4.125 (105)
4.625 (117)
5.125 (130)
5.625 (143)
3.125 (79)
4.125 (105)
4.625 (117)
5.125 (130)
5.625 (143)
3.625 (92)
4.125 (105)
4.625 (117)
5.125 (130)
5.625 (143)
8.625 (220)
4.125 (105)
4.625 (117)
5.625 (143)
F
0.010 (0.25)
1.375 (35.0)
0.500 (12.7)
F
Vent
S
T
2.000 (50.8)
0.875 (22.2)
J
Insulating
Sleeve
2.500 (63.5)
1.125 (28.6)
L
H
3.000 (76.2)
1.250 (31.8)
FA5
FB7
FE3
3.500 (89.0)
1.250 (31.8)
D
Terminal Specifications
Terminal
Code
HP
LP
HL
ML
CD
CP
CH
CA
CS
Available Case Diameter
Ø
D
Ø
D
Code
C-E
C-E
C-E
C-E
D-E
D-F
D-F
D-F
D-F
inches (mm)
1.375 – 3.000 (35.0 – 76.2)
1.375 – 3.000 (35.0 – 76.2)
1.375 – 3.000 (35.0 – 76.2)
1.375 – 3.000 (35.0 – 76.2)
2.500 – 3.000 (63.5 – 76.2)
2.500 – 3.500 (63.5 – 89.0)
2.500 – 3.500 (63.5 – 89.0)
2.500 – 3.500 (63.5 – 89.0)
2.500 – 3.500 (63.5 – 89.0)
Thread
Size
10 - 32 NF- 2B
10 - 32 NF- 2B
M5x0.8 - 6H
M5x0.8 - 6H
M5x0.8 - 6H
1
/
4
- 28 NF- 2B
1
/ - 28 NF- 2B
4
M6x1- 6H
M6x1- 6H
Minimum
Thread
Depth
0.375 (9.5)
0.219 (5.6)
0.375 (9.5)
0.219 (5.6)
0.335 (8.5)
0.344 (8.7)
0.468 (11.9)
0.344 (8.7)
0.468 (11.9)
J
0.020 (0.5)
0.250 (6.4)
0.063 (1.6)
0.250 (6.4)
0.063 (1.6)
0.200 (5.0)
0.093 (2.4)
0.250 (6.4)
0.093 (2.4)
0.250 (6.4)
H
0.080 (2.0)
L
L
L
L
L
L
L
L
L
J
J
J
J
J
J
J
J
J
Ø
S
0.010 (0.25)
Ø
T
0.010 (0.25)
0.313 (8.0)
0.313 (8.0)
0.313 (8.0)
0.313 (8.0)
0.512 (13.0)
0.689 (17.5)
0.689 (17.5)
0.689 (17.5)
0.689 (17.5)
0.438 (11.1)
—
0.438 (11.1)
0.438 (11.1)
0.740 (18.8)
—
—
—
—
L ARGE CAN 105 C
U32D
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
3 / 12
U32D Series
Mounting Hardware - Screw Terminals
Type C: Three-Footed Clamp
360
3
Engineering Bulletin Mar 07
Unit: mm (inches)
30
45
D
5
15
A
T
J
G
K
5.1 0.5 (2 holes)
(0.201 0.020)
R
S
B
Clamp: Zinc with silver trivalent
chromate post treatment.
Hardware: Screw, washer and hexagon
nut included with each clamp.
Type C: Clamp Dimensions
Mounting
Code
See Note
C
C
C
C
Case
Ø
D
35.0 (1.375)
50.8 (2.000)
63.5 (2.500)
76.2 (3.000)
89.0 (3.500)
A
1.0 (0.040)
—
31.8 (1.250)
38.1 (1.500)
44.5 (1.750)
50.8 (2.000)
B
1.0 (0.040)
—
36.5 (1.437)
42.9 (1.689)
49.2 (1.937)
56.5 (2.224)
G
1.0 (0.040)
—
13.3 (0.524)
13.3 (0.524)
13.3 (0.524)
16.0 (0.630)
J
0.5 (0.020)
—
4.5 (0.177)
4.5 (0.177)
4.5 (0.177)
4.5 (0.177)
K
0.5 (0.020)
—
7.1 (0.280)
7.1 (0.280)
7.1 (0.280)
8.0 (0.313)
R
1.0 (0.040)
—
19.1 (0.751)
19.1 (0.751)
19.1 (0.751)
21.0 (0.827)
S
1.0 (0.040)
—
9.5 (0.374)
9.5 (0.374)
9.5 (0.374)
9.0 (0.354)
T
0.5 (0.020)
—
0.8 (0.032)
0.8 (0.032)
1.0 (0.040)
1.0 (0.040)
Note: Type B two-footed clamp available upon request for
Ø
35,
Ø
50.8,
Ø
63.5 and
Ø
76.2. Consult UCC for specifications.
Type S: Stud Mounting
L ARGE CAN 105 C
U32D
Q
M
P
K
T
D
N
R
Type S: Stud Mounting Dimensions
Mounting
Code
S
P
1.0 (0.040)
16.0 (0.630)
T
Thread Size
M12
M
1.0 (0.040)
19.0 (0.748)
N
1.0 (0.040)
18.0 (0.709)
Ø
K
2.0 (0.080)
Ø
Q
1.0 (0.040)
R
1.0 (0.040)
1.40 (0.055)
30.0 (1.181)
22.0 (0.866)
4 / 12
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
U32D Series
Part Numbering System for U32D Series
18 Fields
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18
Engineering Bulletin Mar 07
When ordering, always specify complete 18-field global part number.
E 3 2 D 2 0 1 H P N 1 0 3 MD A 5 M
9
8
7
6
Supplement Code.
Field 18.
C = PET insulation with end disk.
F = Coated can.
M = Pb-free PVC insulation with end disk.
Case Size.
Fields 15, 16 and 17.
The single letter diameter code is inserted in field 15.
A =
Ø
35mm (
Ø
1.375”)
C =
Ø
50.8mm (
Ø
2.000”)
D =
Ø
63.5mm (
Ø
2.500”)
E =
Ø
76.2mm (
Ø
3.000”)
F =
Ø
89mm (
Ø
3.500”)
The double character length code is inserted in fields 16 and 17.
For lengths
≤
99mm, insert the actual length rounded to nearest
millimeter. For lengths of 100mm or more, insert the appropriate
alpha numeric code as indicated below.
41 = 41mm (1.625”)
48 = 48mm (1.875”)
54 = 54mm (2.125”)
67 = 67mm (2.625”)
79 = 79mm (3.125”)
92 = 92mm (3.625”)
A5 = 105mm (4.125”)
B7 = 117mm (4.625”)
D0 = 130mm (5.125”)
E3 = 143mm (5.625”)
N0= 220mm (8.625”)
Capacitance Tolerance.
Field 14.
M = 20%
Capacitance.
Fields 11, 12 and 13.
Expressed in Microfarads. The first two digits are significant
figures inserted in fields 11 and 12, and the third digit inserted
in field 13 indicates the number of zeros for capacitance of
10 F or more. R indicates the decimal point for capacitance
less than 10 F (e.g. 1R0 = 1.0 F; 100 = 10 F; 101 = 100 F;
102 = 1,000 F; 103 = 10,000 F ).
Mounting Hardware.
Field 10.
N = None.
B = Two-footed clamp.
C = Three-footed clamp.
S = Stud mount.
Terminal Type.
Fields 8 and 9.
HP = High post 10-32 NF- 2B screw thread.
LP = Low post 10-32 NF- 2B screw thread.
HL = High post M5x0.8 screw thread.
ML = Low post M5x0.8 screw thread.
CD = UTE M5x0.8 screw thread.
CP = Low post
1
/
4
-28 NF-2B screw thread.
CH = High post
1
/
4
-28 NF-2B screw thread.
CA = Low post M6x1 screw thread.
CS = High post M6x1 screw thread.
DC Rated Voltage.
Fields 5, 6 and 7.
Expressed in Volts. The first two digits are significant figures
inserted in fields 5 and 6, and the third digit inserted in field 7
indicates the number of zeros for rated voltage of 10VDC or
more. R indicates the decimal point for rated voltage less than
10VDC (e.g. 2R0 = 2.0VDC; 200 = 20VDC; 201 = 200VDC).
Series Name.
Fields 2, 3 and 4.
Enter the 3-letter/digit series name in fields 2, 3 and 4. If the
series name is only 2 letters /digits, place a dash in field 4.
For a series name with more than 3 letters /digits, refer to the
individual series for the appropriate 3-field series name.
Capacitor Type.
Field 1.
Aluminum Electrolytic Capacitor (Polar).
5
L ARGE CAN 105 C
4
U32D
3
2
1
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
5 / 12
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