SMM SERIES
SMM
Series
Snap Mount
Downsize
High Voltage
Long Life
RoHS
Compliant
85 C
Maximum
Temperature
Engineering Bulletin Mar 07
SNAP MOUNT 85 C
SMM
The SMM series is a high voltage, long life snap-in capacitor series that offers downsized versions
of the SMH series. Compared to our SMH series, the SMM capacitors have a longer rated lifetime
of 3,000 hours with the full rated ripple current applied and are also one case size smaller than
equivalently rated SMH capacitors. These characteristics allow downsizing for many power supplies
and will provide better reliability due to increased life. The SMM capacitors are available in 2 or 4-pin
snap-in styles and 4-pin straight terminals. The SMM series capacitors are RoHS compliant offering
Pb-free construction.
The standard SMM series capacitors are
not
solvent proof. Refer to guidelines and precautions on the
website for usage and installation conditions recommended for United Chemi-Con products.
Summary of Specifications
PC board 2 or 4-pin snap-in; optional 4-pin straight terminals.
Capacitance range: 47 to 3,300µF.
Voltage range: 160 to 450VDC.
Category temperature range: 25 C to 85 C.
Leakage current: 3 CV (µA) maximum after 5 minutes at 20 C.
Standard capacitance tolerance: 20%
Nominal case size (D L): 20 25mm to 35 50mm.
Rated lifetime: 3,000 hours at 85 C with the 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
1/ 11
SMM Series
SMM Specifications - Snap Mount
Item
Category Temperature Range
Rated Voltage Range
Capacitance Range
Capacitance Tolerance
Leakage Current
25 to
85 C
Characteristics
Engineering Bulletin Mar 07
160 to 450VDC
47 to 3,300 F
20% ( M ) at
20 C, 120Hz
20 C.
I
≤
3 CV ( A ) after 5 minutes at
At
20 C, 120Hz
160 - 400
0.15
Where I = Max. leakage current ( A ), C = Nominal capacitance ( F ) and V = Rated voltage ( V )
Dissipation Factor ( Tan )
Rated Voltage ( V )
Tan
( DF ) Max.
420 - 450
0.20
Low Temperature
Characteristics
At 120Hz, impedance ( Z ) ratio between the
the values given below.
Rated Voltage ( V )
Z ( 25 C ) / Z ( 20 C )
160 - 400
4
420 - 450
8
25 C value and
20 C value shall not exceed
Rated Ripple Current Multipliers
Ambient Temperature ( C )
45 C
1.73
60 C
1.50
70 C
1.32
85 C
1.00
Frequency (Hz )
SNAP MOUNT 85 C
DC Rated Voltage
160 - 250V
315 - 450V
50Hz
0.81
0.77
120Hz
1.00
1.00
300Hz
1.17
1.16
1kHz
1.32
1.30
10kHz
1.45
1.41
50kHz
1.50
1.43
SMM
Endurance
(Load Life)
The following specifications shall be satisfied when the capacitors are restored to 20 C after
subjecting them to DC voltage for 3,000 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% of initial measured value
Tan ( DF )
:
≤
200% of initial specified value
Leakage current
:
≤
initial specified value
Shelf Life
The following specifications shall be satisfied when the capacitors are restored to 20 C after
exposing them for 1,000 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:
≤
15% of initial measured value
Tan ( DF )
:
≤
150% of initial specified value
Leakage current
:
≤
initial specified value
2 / 11
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
SMM Series
Diagram of Dimensions - Snap Mount
Snap Mount
Types VSN
Ø
20~
Ø
35; VNN
Ø
22~
Ø
35
See
Pin
Detail
Engineering Bulletin Mar 07
Unit: mm
Type VRD
Ø
35
See
Pin
Detail
A
*
Pb-free PVC Sleeve
PC board pin-out
Pb-free PVC Sleeve
B
C
*
PC board pin-out
D 1
2-2x
10
D35 1
30°
22.5
**
Vent
L
2
**
Vent
L
2
2-4x
Type VND
Ø
35
See
Pin
Detail
A
*
D35 1
Type VQD
Ø
35
See
Pin
Detail
A
*
30°
22.5
D35 1
Pb-free PVC Sleeve
B
C
*
PC board pin-out
Pb-free PVC Sleeve
B
C
*
PC board pin-out
30°
22.5
**
Vent
L
2
2-4x
**
Vent
L
2
2-4x
SNAP MOUNT 85 C
SMM
VS & VN Pin Dimensions
VR & VQ Pin Dimensions
VR Straight Pin
VQ Standoff Pin
W
1
Edge
of can
W
P
P
1
Edge
of can
W
2
W
1
Edge
of can
W
1
W
P
W
P
Type
VSN
Ø
20 -
Ø
30
VSN
Ø
35
VNN
Ø
22 -
Ø
35
VND
Ø
35
P
4.0
3.5
5.8
5.8
0.5
0.5
1.0
1.0
W
W
1
W
2
1.5
0.2
1.0
1.0
Type
Straight Pin (VR)
Standoff Pin (VQ)
P
5.50 1.0
3.75 1.0
P
1
—
2.0 max.
W
1.5
0.1
W
1
0.7
CAUTION:
*
Use the blank terminals for mechanical support only. The blank terminals must not be connected to a solder trace on the
PC board, but be electrically isolated from the negative or positive terminal.
**
Vent may be located either on the bottom or side of the can.
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
3 / 11
SMM Series
Part Numbering System for SMM 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 S MM 4 0 1 V S N 5 6 1 M A 4 0 T
9
8
7
SNAP MOUNT 85 C
6
SMM
Supplement Code.
Field 18.
All construction options listed have Sn100% terminal plating.
S = PET sleeve without end disk.
W = PET sleeve with end disk.
M = Pb-free PVC sleeve without end disk.
T = Pb-free PVC sleeve with end disk.
Case Size.
Fields 15, 16 and 17.
The single letter diameter code is inserted in field 15.
N =
Ø
20mm
P =
Ø
22mm
Q =
Ø
25.4mm
R =
Ø
30mm
A =
Ø
35mm
The double digit length code is inserted in fields 16 and 17.
20 = 20mm
25 = 25mm
30 = 30mm
35 = 35mm
40 = 40mm
45 = 45mm
50 = 50mm
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. 5R6 = 5.6 F; 560 = 56 F; 561 = 560 F;
562 = 5,600 F; 563 = 56,000 F ).
Dummy Terminals.
Field 10.
N = No dummy terminals.
D = 2 dummy terminals.
Terminal Type.
Fields 8 and 9.
VS = Snap-in pins, 4.0mm in length, 3.5mm for
Ø
35 only.
VN = Snap-in pins, 5.8mm in length.
VR = Straight pins.
VQ = Straight standoff pins.
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. 4R0 = 4.0VDC; 400 = 40VDC; 401 = 400VDC).
Rule Exception: Coding for rated voltage 315VDC = 3B1.
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
4
3
2
1
4 / 11
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
SMM Series
Standard Voltage Ratings - Snap Mount
Rated
Voltage
(WVDC)
Capacitance
(µF )
Global
Part Number
†
Nominal
Case Size*
D L ( mm )
Case
Size
Code
Engineering Bulletin Mar 07
Maximum ESR
(
Ω
) at
20 C, 120Hz
Rated
Ripple Current
(A rms) at
85 C, 120Hz
1.28
1.55
1.63
1.9
2.14
2.35
2.64
1.3
1.63
1.86
2.15
2.35
2.68
3.02
3.47
1.62
1.86
2.15
2.33
2.65
3.0
3.43
3.96
2.05
2.33
2.64
2.96
3.41
3.96
4.31
4.96
2.26
2.49
3.13
3.4
3.94
4.28
4.96
5.57
6.21
1.29
1.77
1.84
1.91
2.15
2.41
2.72
1.18
1.77
1.84
1.91
2.25
2.48
2.86
3.1
1.49
2.08
160 Volts
200 Volts Surge
270
330
390
470
560
680
820
270
390
470
560
680
820
1,000
1,200
390
470
560
680
820
1,000
1,200
1,500
560
680
820
1,000
1,200
1,500
1,800
2,200
680
820
1,000
1,200
1,500
1,800
2,200
2,700
3,300
270
330
390
470
560
680
820
220
330
390
470
560
680
820
1,000
330
470
ESMM161VSN271MN25T
ESMM161VSN331MN25T
ESMM161VSN391MN30T
ESMM161VSN471MN30T
ESMM161VSN561MN35T
ESMM161VSN681MN40T
ESMM161VSN821MN45T
ESMM161VSN271MP20T
ESMM161VSN391MP25T
ESMM161VSN471MP30T
ESMM161VSN561MP30T
ESMM161VSN681MP35T
ESMM161VSN821MP40T
ESMM161VSN102MP45T
ESMM161VSN122MP50T
ESMM161VSN391MQ20T
ESMM161VSN471MQ25T
ESMM161VSN561MQ25T
ESMM161VSN681MQ30T
ESMM161VSN821MQ30T
ESMM161VSN102MQ35T
ESMM161VSN122MQ40T
ESMM161VSN152MQ50T
ESMM161VSN561MR20T
ESMM161VSN681MR25T
ESMM161VSN821MR25T
ESMM161VSN102MR30T
ESMM161VSN122MR30T
ESMM161VSN152MR35T
ESMM161VSN182MR40T
ESMM161VSN222MR50T
ESMM161VSN681MA20T
ESMM161VSN821MA20T
ESMM161VSN102MA25T
ESMM161VSN122MA25T
ESMM161VSN152MA30T
ESMM161VSN182MA35T
ESMM161VSN222MA40T
ESMM161VSN272MA45T
ESMM161VSN332MA50T
ESMM181VSN271MN25T
ESMM181VSN331MN30T
ESMM181VSN391MN30T
ESMM181VSN471MN35T
ESMM181VSN561MN40T
ESMM181VSN681MN45T
ESMM181VSN821MN50T
ESMM181VSN221MP20T
ESMM181VSN331MP25T
ESMM181VSN391MP25T
ESMM181VSN471MP30T
ESMM181VSN561MP35T
ESMM181VSN681MP35T
ESMM181VSN821MP40T
ESMM181VSN102MP50T
ESMM181VSN331MQ20T
ESMM181VSN471MQ25T
20
20
20
20
20
20
20
22
22
22
22
22
22
22
22
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
30
30
30
30
30
30
30
30
35
35
35
35
35
35
35
35
35
20
20
20
20
20
20
20
22
22
22
22
22
22
22
22
25.4
25.4
25
25
30
30
35
40
45
20
25
30
30
35
40
45
50
20
25
25
30
30
35
40
50
20
25
25
30
30
35
40
50
20
20
25
25
30
35
40
45
50
25
30
30
35
40
45
50
20
25
25
30
35
35
40
50
20
25
N25
N25
N30
N30
N35
N40
N45
P20
P25
P30
P30
P35
P40
P45
P50
Q20
Q25
Q25
Q30
Q30
Q35
Q40
Q50
R20
R25
R25
R30
R30
R35
R40
R50
A20
A20
A25
A25
A30
A35
A40
A45
A50
N25
N30
N30
N35
N40
N45
N50
P20
P25
P25
P30
P35
P35
P40
P50
Q20
Q25
0.921
0.753
0.638
0.529
0.444
0.366
0.303
0.921
0.638
0.529
0.444
0.366
0.303
0.249
0.207
0.638
0.529
0.444
0.366
0.303
0.249
0.207
0.166
0.444
0.366
0.303
0.249
0.207
0.166
0.138
0.113
0.366
0.303
0.249
0.207
0.166
0.138
0.113
0.092
0.075
0.921
0.753
0.638
0.529
0.444
0.366
0.303
1.13
0.753
0.638
0.529
0.444
0.366
0.303
0.249
0.753
0.529
SNAP MOUNT 85 C
SMM
180 Volts
225 Volts Surge
†
For terminal and construction options, refer to the part numbering system for descriptions and codes.
*
Refer to diagram of dimensions for detailed case size specifications.
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
5 / 11
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