Type 947C Polypropylene, DC Link Capacitors

Type 947C Polypropylene, DC Link Capacitors
Type 947C Polypropylene, DC Link Capacitors
High Current, High Capacitance for Inverter Applications
Type 947C series uses the most advanced metallized film
technology for long life, high reliability in DC Link applications.
This series delivers high capacitance, high voltage and high ripple
current handling capabilities required for inverters used in wind,
solar, fuel cell applications and more.
Highlights
- Non-polar dielectric
- Dry, resin filled
- High reliability and life expectancy
- Replacement for aluminum electrolytic
capacitors (lower capacitance, higher current)
- High current to 100 Amps
- Low ESR
- Low Inductance
Specifications
Capacitance Range
110 to 1500 µF
Capacitance Tolerance
±10% standard, ±5% optional
Rated Voltage
800 to 1300 Vdc
Operating Temperature Range
-40 ºC to 85 ºC (ambient)
Maximum rms Current
see data tables
Maximum rms Voltage
230 Vac
Test Voltage between Terminals @ 25 ºC
150% rated DC voltage for 10 s
Test Voltage between Terminals & Case @ 25 ºC
4 kVac @ 50/60 Hz for 60 s
Life Test
5000 h @ 85 ºC, rated voltage
Life Expectancy
200,000 h @ 60 ºC , rated voltage
Reliability
100 FIT typical (medium size capacitor)
Standards
IEC 61071, IEC 61881
RoHS Compliant
Dimensions
Construction Details
90.0Dmm
90.0 mm
±1.0
or 2.0
mm mm
+2.0/-0.0
mm
+2.0/-0.0
90.0 mm
+2.0/-0.0 mm
Max Torque
Torque
Max
2.5 Nm
Nm
8.5
15.0
17.5 mm
mm
S
45.0
45.0
±1.0 mm
±1.0 mm
h Optional M12 x 1.75 THD Stud
and Hex Nut Provided
Terminal Material
Tin Plated Brass
D
±1.0 or 2.0 mm
M6 x 10 mm
Min
15.0 mm
S
45.0
±1.0 mm
S
±1.0 mm
6.0
±1.0 mm
20.0
±1.0 mm
20.0
±1.0 mm
Figure
Figure2 1
Dry Resin UL94V-0
6.0
6.0
±1.0
±1.0 mm
mm
6.0
6.0 6.0
±1.0
±1.0 mm
±1.0 mm
mm
16.0
16.0mm
±1.0
±1.0 mm
Resin Material
Max Torque
8.5 Nm
M5
mm
M6 xx 4.0
10 mm
Min
M6
mm
M5
xmm
4.0 mm
M8xx10
1.25
Min Min
20.7mm
mm
15.0
17.5 mm
Aluminum with Black PVC Sleeve
90.0Dmm
±1.0
or 2.0mm
mm
+2.0/-0.0
Max
MaxTorque
Torque
Max Torque
8.5
8.5Nm
Nm2.5 Nm
45.0
±1.0 mm
Case Material
HH
H
±1.0
±2.0 mm
±2.0mm
mm
16.0 16.0
16.0mm
±1.0
±1.0 mm
±1.0 mm
Figure
31 2
Figure
Figure
All Shown with Optional M12 x 1.75 THD Stud
Lock Washer and Hex Nut Provided
HH
±2.0 mm
mm
±1.0
16.0
±1.0 mm
Figure 2
3
H
±1.0 mm
16.0
±1.0 mm
Figure 3
All Shown with Optional M12 x 1.75 THD Stud
Lock Washer and Hex Nut Provided
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type 947C Polypropylene, DC Link Capacitors
High Current, High Capacitance for Inverter Applications
Part Numbering System
947C
361
K
801
C
A
M
S
– NS
Type
Capacitance
Tolerance
Voltage
Diameter D
Height H
Terminal
Mounting
Sleeving
947C
361 = 360 µF
K = ±10 %
801 = 800 Vdc
C = 90 mm
T = 85 mm
I = M5 Insert
blank = no stud
Specify –NS
731 = 730 µF
J = ±5 %
901 = 900 Vdc
B = 85 mm
A = 97 mm
Threaded
S = M12 Stud
for Bare Can
102 = 1000 Vdc
D = 116 mm
Threaded
152 = 1500 µF
B = 120 mm
M = M8 Stud
112 = 1100 Vdc
G = 140 mm
Threaded
122 = 1200 Vdc
C = 145 mm
H = M6 Insert
132 = 1300 Vdc
L = 165 mm
Threaded
D = 170 mm
Ratings
NOTE: Other ratings, sizes and performance specifications are available. Contact us.
Rated
Can
Cap. Voltage Diameter
Part Number
947C311K801BTHS
2
Can
Lead
Height
Spacing
Case
Current
ΔT = 40
Typ
Typ
Thermal Resistance
C
Vr
D
H
S
Area
Irms
ESR
ESL
Θcc
Θca
Mass
(µF)
(Vdc)
(mm)
(mm)
(mm)
(mm²)
(A)
(mΩ)
(nH)
(ºC/W)
(ºC/W)
(kg)
Fig
310
800
85
85
31.7
34000
61
1.9
29
2.9
3.4
0.6
3
947C341K801CTMS
340
800
90
85
45.0
36800
66
1.7
29
2.8
3.1
0.7
1
947C341K801CTIS
340
800
90
85
45.0
36800
66
1.7
29
2.8
3.1
0.7
2
947C361K801CAMS
360
800
90
97
45.0
40100
65
1.9
33
3.0
2.9
0.9
1
947C361K801CAIS
360
800
90
97
45.0
40100
65
1.9
33
3.0
2.9
0.9
2
947C381K801BAHS
380
800
85
97
31.7
37300
61
2.0
33
2.7
3.1
0.7
3
947C411K801CAMS
410
800
90
97
45.0
40100
65
1.9
33
2.7
2.9
0.7
1
947C411K801CAIS
410
800
90
97
45.0
40100
65
1.9
33
2.7
2.9
0.7
2
947C491K801CBMS
490
800
90
120
45.0
46700
59
2.6
41
2.6
2.5
1.0
1
947C491K801CBIS
490
800
90
120
45.0
46700
59
2.6
41
2.6
2.5
1.0
2
947C511K801BBHS
510
800
85
120
31.7
43400
59
2.5
41
2.3
2.6
0.8
3
947C561K801CBMS
560
800
90
120
45.0
46700
64
2.3
41
2.3
2.5
0.9
1
947C561K801CBIS
560
800
90
120
45.0
46700
64
2.3
41
2.3
2.5
0.9
2
947C601K801CCMS
600
800
90
145
45.0
53700
58
3.1
49
2.2
2.1
1.2
1
947C601K801CCIS
600
800
90
145
45.0
53700
58
3.1
49
2.2
2.1
1.2
2
947C621K801DTHS
620
800
116
85
50.0
52100
103
1.0
35
2.1
2.2
1.1
3
947C651K801BGHS
650
800
85
140
31.7
48700
59
2.9
49
2.0
2.4
0.9
3
947C701K801CCMS
700
800
90
145
45.0
53700
63
2.7
49
2.0
2.1
1.1
1
947C701K801CCIS
700
800
90
145
45.0
53700
63
2.7
49
2.0
2.1
1.1
2
947C731K801CDMS
730
800
90
170
45.0
60800
58
3.5
58
1.9
1.9
1.3
1
947C731K801CDIS
730
800
90
170
45.0
60800
58
3.5
58
1.9
1.9
1.3
2
947C751K801DAHS
750
800
116
97
50.0
56500
101
1.1
40
2.1
2
1.2
3
947C791K801BDHS
790
800
85
170
31.7
56700
59
3.3
58
1.7
2
1.1
3
947C851K801CDMS
850
800
90
170
45.0
60800
63
3.0
58
1.7
1.9
1.2
1
947C851K801CDIS
850
800
90
170
45.0
60800
63
3.0
58
1.7
1.9
1.2
2
947C102K801DBHS
1000
800
116
120
50.0
64900
97
1.3
50
2.0
1.8
1.4
3
947C122K801DCHS
1200
800
116
145
50.0
74000
92
1.6
60
1.9
1.6
1.7
3
947C152K801DLHS
1500
800
116
165
50.0
81300
93
1.8
70
1.7
1.4
1.9
3
947C241K901BTHS
240
900
85
85
31.7
34000
57
2.1
29
2.9
3.4
0.6
3
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type 947C Polypropylene, DC Link Capacitors
High Current, High Capacitance for Inverter Applications
Rated
Can
Cap. Voltage Diameter
Part Number
Can
Lead
Current
Height
Spacing
Case
ΔT = 40
Typ
Typ
Thermal Resistance
C
Vr
D
H
S
Area
Irms
ESR
ESL
Θcc
Θca
Mass
(µF)
(Vdc)
(mm)
(mm)
(mm)
(mm²)
(A)
(mΩ)
(nH)
(ºC/W)
(ºC/W)
(kg)
Fig
947C261K901CTMS
260
900
90
85
45.0
36800
61
2.0
29
2.9
3.1
0.7
1
947C261K901CTIS
260
900
90
85
45.0
36800
61
2.0
29
2.9
3.1
0.7
2
947C291K901BAHS
290
900
85
97
31.7
37300
56
2.3
33
2.7
3.1
0.7
3
947C321K901CAMS
320
900
90
97
45.0
40100
61
2.1
33
2.7
2.9
0.7
1
947C321K901CAIS
320
900
90
97
45.0
40100
61
2.1
33
2.7
2.9
0.7
2
947C401K901BBHS
400
900
85
120
31.7
43400
56
2.8
41
2.3
2.6
0.8
3
947C431K901CBMS
430
900
90
120
45.0
46700
59
2.6
41
2.3
2.5
0.9
1
947C431K901CBIS
430
900
90
120
45.0
46700
59
2.6
41
2.3
2.5
0.9
2
947C481K901DTHS
480
900
116
85
50.0
52100
96
1.1
35
2.1
2.2
1.1
3
947C511K901BGHS
510
900
85
140
31.7
48700
56
3.2
49
2.0
2.4
0.9
3
947C551K901CCMS
550
900
90
145
45.0
53700
59
3.0
49
2.0
2.1
1.0
1
947C551K901CCIS
550
900
90
145
45.0
53700
59
3.0
49
2.0
2.1
1.0
2
947C581K901DAHS
580
900
116
97
50.0
56500
94
1.3
35
2.1
2
1.2
3
947C611K901BDHS
610
900
85
170
31.7
56700
56
3.7
58
1.7
2
1.1
3
947C661K901CDMS
660
900
90
170
45.0
60800
59
3.4
58
1.8
1.9
1.2
1
947C661K901CDIS
660
900
90
170
45.0
60800
59
3.4
58
1.8
1.9
1.2
2
947C791K901DBHS
790
900
116
120
50.0
64900
91
1.5
50
2.0
1.8
1.4
3
947C102K901DCHS
1000
900
116
145
50.0
74000
89
1.7
60
1.8
1.6
1.7
3
947C122K901DLHS
1200
900
116
165
50.0
81300
89
2.0
70
1.6
1.4
1.9
3
947C191K102BTHS
190
1000
85
85
31.7
34000
53
2.4
29
2.9
3.4
0.6
3
947C211K102CTMS
210
1000
90
85
45.0
36800
58
2.2
29
2.9
3.1
0.7
1
947C211K102CTIS
210
1000
90
85
45.0
36800
58
2.2
29
2.9
3.1
0.7
2
947C231K102CAMS
230
1000
90
97
45.0
40100
54
2.6
33
3.0
2.9
0.9
1
947C231K102CAIS
230
1000
90
97
45.0
40100
54
2.6
33
3.0
2.9
0.9
2
947C241K102BAHS
240
1000
85
97
31.7
37300
54
2.5
33
2.7
3.1
0.7
3
947C251K102CAMS
250
1000
90
97
45.0
40100
56
2.4
33
2.7
2.9
0.8
1
947C251K102CAIS
250
1000
90
97
45.0
40100
56
2.4
33
2.7
2.9
0.8
2
947C311K102CBMS
310
1000
90
120
45.0
46700
53
3.2
41
2.6
2.5
1.0
1
947C311K102CBIS
310
1000
90
120
45.0
46700
53
3.2
41
2.6
2.5
1.0
2
947C321K102BBHS
320
1000
85
120
31.7
43400
53
3.1
41
2.3
2.6
0.8
3
947C351K102CBMS
350
1000
90
120
45.0
46700
57
2.8
41
2.3
2.5
0.9
1
947C351K102CBIS
350
1000
90
120
45.0
46700
57
2.8
41
2.3
2.5
0.9
2
947C381K102DTHS
380
1000
116
85
50.0
52100
90
1.3
35
2.2
2.2
1.1
3
947C391K102CCMS
390
1000
90
145
45.0
53700
53
3.7
49
2.2
2.1
1.2
1
947C391K102CCIS
390
1000
90
145
45.0
53700
53
3.7
49
2.2
2.1
1.2
2
947C411K102BGHS
410
1000
85
140
31.7
48700
53
3.5
49
2.0
2.4
0.9
3
947C441K102CCMS
440
1000
90
145
45.0
53700
56
3.3
49
2.0
2.1
1.1
1
947C441K102CCIS
440
1000
90
145
45.0
53700
56
3.3
49
2.0
2.1
1.1
2
947C471K102DAHS
470
1000
116
97
50.0
56500
90
1.4
40
2.1
2
1.2
3
947C471K102CDMS
470
1000
90
170
45.0
60800
52
4.3
38
1.9
1.9
1.3
1
947C471K102CDIS
470
1000
90
170
45.0
60800
52
4.3
38
1.9
1.9
1.3
2
947C491K102BDHS
490
1000
85
170
31.7
56700
53
4.1
49
1.7
2
1.1
3
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type 947C Polypropylene, DC Link Capacitors
High Current, High Capacitance for Inverter Applications
Rated
Can
Cap. Voltage Diameter
Part Number
Can
Lead
Current
Height
Spacing
Case
ΔT = 40
Typ
Typ
Thermal Resistance
C
Vr
D
H
S
Area
Irms
ESR
ESL
Θcc
Θca
Mass
(µF)
(Vdc)
(mm)
(mm)
(mm)
(mm²)
(A)
(mΩ)
(nH)
(ºC/W)
(ºC/W)
(kg)
Fig
947C531K102CDMS
530
1000
90
170
45.0
60800
56
3.8
58
1.8
1.9
1.2
1
947C531K102CDIS
530
1000
90
170
45.0
60800
56
3.8
58
1.8
1.9
1.2
2
947C641K102DBHS
640
1000
116
120
50.0
64900
87
1.6
50
2.0
1.8
1.4
3
947C801K102DCHS
800
1000
116
145
50.0
74000
85
1.9
60
1.8
1.6
1.7
3
947C971K102DLHS
970
1000
116
165
50.0
81300
84
2.2
70
1.6
1.4
1.9
3
947C161K112BTHS
160
1100
85
85
31.7
34000
51
2.6
29
2.9
3.4
0.6
3
947C171K112CTMS
170
1100
90
85
45.0
36800
54
2.4
29
2.9
3.1
0.7
1
947C171K112CTIS
170
1100
90
85
45.0
36800
54
2.4
29
2.9
3.1
0.7
2
947C191K112BAHS
190
1100
85
97
31.7
37300
50
2.9
33
2.7
3.1
0.7
3
947C211K112CAMS
210
1100
90
97
45.0
40100
54
2.6
33
2.7
2.9
0.8
1
947C211K112CAIS
210
1100
90
97
45.0
40100
54
2.6
33
2.7
2.9
0.8
2
947C261K112BBHS
260
1100
85
120
31.7
43400
50
3.4
41
2.3
2.6
0.8
3
947C281K112CBMS
280
1100
90
120
45.0
46700
53
3.2
41
2.3
2.5
0.9
1
947C281K112CBIS
280
1100
90
120
45.0
46700
53
3.2
41
2.3
2.5
0.9
2
947C311K112DTHS
310
1100
116
85
50.0
52100
85
1.4
35
2.2
2.2
1.1
3
947C331K112BCHS
330
1100
85
145
31.7
50100
50
4.0
49
2.0
2.3
0.9
3
947C361K112CCMS
360
1100
90
145
45.0
53700
53
3.7
49
2.0
2.1
1.1
1
947C361K112CCIS
360
1100
90
145
45.0
53700
53
3.7
49
2.0
2.1
1.1
2
947C381K112DAHS
380
1100
116
97
50.0
56500
84
1.5
40
2.2
2
1.2
3
947C401K112BDHS
400
1100
85
170
31.7
56700
50
4.5
58
1.7
2
1.1
3
947C431K112CDMS
430
1100
90
170
45.0
60800
53
4.2
58
1.8
1.9
1.2
1
947C431K112CDIS
430
1100
90
170
45.0
60800
53
4.2
58
1.8
1.9
1.2
2
947C521K112DBHS
520
1100
116
120
50.0
64900
82
1.8
50
2.0
1.8
1.4
3
947C661K112DCHS
660
1100
116
145
50.0
74000
81
2.1
60
1.8
1.6
1.7
3
947C801K112DLHS
800
1100
116
165
50.0
81300
81
2.4
70
1.6
1.4
1.9
3
947C131K122BTHS
130
1200
85
85
31.7
34000
48
2.9
29
2.9
3.4
0.6
3
947C141K122CTIS
140
1200
90
85
45.0
36800
51
2.7
29
2.9
3.1
0.7
1
947C141K122CTIS
140
1200
90
85
45.0
36800
51
2.7
29
2.9
3.1
0.7
2
947C161K122BAHS
160
1200
85
97
31.7
37300
48
3.1
33
2.7
3.1
0.7
3
947C161K122CAMS
160
1200
90
97
45.0
40100
49
3.1
33
3.0
2.9
0.9
1
947C161K122CAIS
160
1200
90
97
45.0
40100
49
3.1
33
3.0
2.9
0.9
2
947C171K122CAMS
170
1200
90
97
45.0
40100
51
3.0
33
2.8
2.9
0.8
1
947C171K122CAIS
170
1200
90
97
45.0
40100
51
3.0
33
2.8
2.9
0.8
2
947C211K122CBMS
210
1200
90
120
45.0
46700
48
3.9
41
2.6
2.5
1.0
1
947C211K122CBIS
210
1200
90
120
45.0
46700
48
3.9
41
2.6
2.5
1.0
2
947C221K122BBHS
220
1200
85
120
31.7
43400
48
3.7
41
2.3
2.6
0.8
3
947C241K122CBMS
240
1200
90
120
45.0
46700
51
4.0
49
2.3
2.5
0.9
1
947C241K122CBIS
240
1200
90
120
45.0
46700
51
4.0
49
2.3
2.5
0.9
2
947C261K122DTHS
260
1200
116
85
50.0
52100
82
1.5
35
2.2
2.2
1.1
3
947C271K122CCMS
270
1200
90
145
45.0
53700
48
4.4
49
2.2
2.1
1.2
1
947C271K122CCIS
270
1200
90
145
45.0
53700
48
4.4
49
2.2
2.1
1.2
2
947C281K122BGHS
280
1200
85
140
31.7
48700
48
4.3
49
2.0
2.4
0.9
3
4
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type 947C Polypropylene, DC Link Capacitors
High Current, High Capacitance for Inverter Applications
Rated
Can
Cap. Voltage Diameter
Part Number
Can
Lead
Current
Height
Spacing
Case
ΔT = 40
Typ
Typ
Thermal Resistance
C
Vr
D
H
S
Area
Irms
ESR
ESL
Θcc
Θca
Mass
(µF)
(Vdc)
(mm)
(mm)
(mm)
(mm²)
(A)
(mΩ)
(nH)
(ºC/W)
(ºC/W)
(kg)
Fig
947C301K122CCMS
300
1200
90
145
45.0
53700
51
4.0
49
2.0
2.1
1.1
1
947C301K122CCIS
300
1200
90
145
45.0
53700
51
4.0
49
2.0
2.1
1.1
2
947C321K122DAHS
320
1200
116
97
50.0
56500
81
1.7
40
2.1
2
1.2
3
947C321K122CDMS
320
1200
90
170
45.0
60800
47
5.1
58
1.9
1.9
1.3
1
947C321K122CDIS
320
1200
90
170
45.0
60800
47
5.1
58
1.9
1.9
1.3
2
947C331K122BDHS
330
1200
85
170
31.7
56700
47
5.0
58
1.7
2
1.1
3
947C361K122CDMS
360
1200
90
170
45.0
60800
51
4.6
58
1.8
1.9
1.2
1
947C361K122CDIS
360
1200
90
170
45.0
60800
51
4.6
58
1.8
1.9
1.2
2
947C431K122DBHS
430
1200
116
120
50.0
64900
78
2.0
50
2.0
1.8
1.4
3
947C551K122DCHS
550
1200
116
145
50.0
74000
78
2.3
60
1.8
1.6
1.7
3
947C661K122DLHS
660
1200
116
165
50.0
81300
76
2.6
70
1.6
1.4
1.9
3
947C111K132BTHS
110
1300
85
85
31.7
34000
46
3.2
29
2.9
3.4
0.6
3
947C121K132CTMS
120
1300
90
85
45.0
36800
49
2.9
29
2.9
3.1
0.7
1
947C121K132CTIS
120
1300
90
85
45.0
36800
49
2.9
29
2.9
3.1
0.7
2
947C131K132BAHS
130
1300
85
97
31.7
37300
45
3.6
33
2.8
3.1
0.7
3
947C151K132CAMS
150
1300
90
97
45.0
40100
50
3.1
33
2.7
2.9
0.7
1
947C151K132CAIS
150
1300
90
97
45.0
40100
50
3.1
33
2.7
2.9
0.7
2
947C181K132BBHS
180
1300
85
120
31.7
43400
45
4.1
41
2.3
2.6
0.8
3
947C201K132CBMS
200
1300
90
120
45.0
46700
49
3.8
41
2.3
2.5
0.9
1
947C201K132CBIS
200
1300
90
120
45.0
46700
49
3.8
41
2.3
2.5
0.9
2
947C221K132DTHS
220
1300
116
85
50.0
52100
78
1.7
35
2.2
2.2
1.1
3
947C231K132BGHS
230
1300
85
140
31.7
48700
45
4.8
49
2.0
2.4
0.9
3
947C251K132CCMS
250
1300
90
145
45.0
53700
48
4.4
49
2.0
2.1
1.1
1
947C251K132CCIS
250
1300
90
145
45.0
53700
48
4.4
49
2.0
2.1
1.1
2
947C271K132DAHS
270
1300
116
97
50.0
56500
77
1.8
40
2.1
2
1.2
3
947C281K132BDHS
280
1300
85
170
31.7
56700
45
5.4
49
1.7
2
1.1
3
947C311K132CDMS
310
1300
90
170
45.0
60800
49
4.9
58
1.7
1.9
1.2
1
947C311K132CDIS
310
1300
90
170
45.0
60800
49
4.9
58
1.7
1.9
1.2
2
947C371K132DBHS
370
1300
116
120
50.0
64900
76
2.1
50
2.0
1.8
1.4
3
947C461K132DCHS
460
1300
116
145
50.0
74000
74
2.5
60
1.8
1.6
1.7
3
947C561K132DLHS
560
1300
116
165
50.0
81300
73
2.8
70
1.6
1.4
1.9
3
1. Rated Current is for temperature rise of +40 ºC at 1–20 kHz.
2. θcc is core-to-case thermal resistance at 0–10 kHz. For higher frequency see Expected Lifetime Predictions.
3. θca is case-to-ambient thermal resistance for still air. For moving air see Expected Lifetime Predictions.
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type 947C Polypropylene, DC Link Capacitors
High Current, High Capacitance for Inverter Applications
Expected Lifetime Predictions
To use the Expected Lifetime curves calculate Va ⁄Vr and core
temperature T. Start by estimating:
Applied dc voltage Va
Ripple Current I
Ripple Frequency f
Ambient Temperature Ta
Airflow speed v
Units:
A=m²
T, Ta & Tc=°C
C=µF
θ, θca & θcc =°C/W
ESR=mWv=m/s
f=kHz Va &Vr=Vdc
I=A
NOTE: The temperature rise in the 947C is I²(ESR) times the
thermal resistance θ. The ESR is mainly the metal resistance;
the metal resistance is the 10 kHz ESR. The dielectric resistance
needs to be considered for operation below 10kHz.
1. Start with the 10kHz ESR from the ratings table. If frequency is
less than 10kHz, use the following equation: ESR - 31.83/(10C) +
31.83/(fC).
2. Compute total thermal resistance θ as the sum of core-to-case
thermal resistance θcc and case-to-ambient thermal resistance
θca. Both are in the Ratings table but θca is for still air. For moving
air use the capacitor surface area A and airflow speed v to calculate
θca = 1 ⁄[A(5+17(v+0.1)0.66)].
Please note that the θcc for all designs built to figures 1 and 2; θcc
is for 10 kHz or less. For frequency > 10 kHz multiply θcc by
[1+(f –10)/100], e.g., for 75 kHz multiply θcc by 1.65.
3. Compute Va ⁄Vr and the core temperature T.
T = Ta + I²(ESR)θ
4. Look up estimated lifetime from the Expected Lifetime curves.
5. If you want a longer expected lifetime, choose a capacitor with
higher voltage rating or consider using multiple capacitors in
The expected lifetime predictions assume no exposure to overvoltage transients.
Expected lifetime can be calculated for varying exposure to overvoltage transients. As an illustration at 50 °C the expected lifetime is 100,000 h with the 24-hour Va ∕ Vr
profile below:
Va / Vr
Duration
1.67 100 ms
1.50 5 minutes
1.30 2.5 hours
1.10 9.6 hours
1.00
11.9 hours
For applications with more severe 24-hour profiles, contact us.
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
6
Type 947C Polypropylene, DC Link Capacitors
High Current, High Capacitance for Inverter Applications
Typical Performance Curves
380 µF 1000 V ESR vs Frequency and Temperature
380 µF 1000 V Rated Ripple Current, Still Air, 5 kh Life
2
120
1.9
100
25°C
45°C
55°C
1.8
85 °C
ESR (mΩ)
1.6
65 °C
1.5
45 °C
1.4
25 °C
65°C
80
Rated Ripple Current (A)
1.7
60
85°C
40
1.3
0 °C
1.2
20
-20 °C
1.1
-40 °C
1
0
100
1000
10000
100000
10
100
Frequency (Hz)
1000
10000
480 µF 900 V ESR vs Frequency and Temperature
480 µF 900 V Rated Ripple Current, Still Air, 5 kh Life
1.9
120
1.8
25°C
45°C
55°C
100
1.7
65°C
Rated Ripple Current (A)
1.6
85 °C
1.5
ESR (mΩ)
100000
Frequency (Hz)
65 °C
1.4
1.3
45 °C
1.2
25 °C
0 °C
1.1
80
60
85°C
40
20
-20 °C
1
-40 °C
0.9
0
100
1000
10000
100000
10
100
Frequency (Hz)
1000
10000
620 µF 800 V ESR vs Frequency and Temperature
620 µF 800 V Rated Ripple Current, Still Air, 5 kh Life
1.7
120
25°C
45°C
55°C
1.6
100
1.5
65°C
Rated Ripple Current (A)
1.4
85 °C
ESR (mΩ)
100000
Frequency (Hz)
1.3
65 °C
1.2
45 °C
1.1
25 °C
1
0 °C
80
60
85°C
40
20
-20 °C
0.9
-40 °C
0.8
0
100
1000
10000
Frequency (Hz)
100000
10
100
1000
10000
100000
Frequency (Hz)
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Notice and Disclaimer: All product drawings, descriptions, specifications, statements, information and
data (collectively, the “Information”) in this datasheet or other publication are subject to change. The
customer is responsible for checking, confirming and verifying the extent to which the Information contained in this datasheet or other publication is applicable to an order at the time the order is placed. All
Information given herein is believed to be accurate and reliable, but it is presented without any guarantee, warranty, representation or responsibility of any kind, expressed or implied. Statements of suitability
for certain applications are based on the knowledge that the Cornell Dubilier company providing such
statements (“Cornell Dubilier”) has of operating conditions that such Cornell Dubilier company regards
as typical for such applications, but are not intended to constitute any guarantee, warranty or representation regarding any such matter – and Cornell Dubilier specifically and expressly disclaims any guarantee,
warranty or representation concerning the suitability for a specific customer application, use, storage,
transportation, or operating environment. The Information is intended for use only by customers who
have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by Cornell Dubilier with reference
to the use of any Cornell Dubilier products is given gratis (unless otherwise specified by Cornell Dubilier),
and Cornell Dubilier assumes no obligation or liability for the advice given or results obtained. Although
Cornell Dubilier strives to apply the most stringent quality and safety standards regarding the design
and manufacturing of its products, in light of the current state of the art, isolated component failures may
still occur. Accordingly, customer applications which require a high degree of reliability or safety should
employ suitable designs or other safeguards (such as installation of protective circuitry or redundancies
or other appropriate protective measures) in order to ensure that the failure of an electrical component
does not result in a risk of personal injury or property damage. Although all product-related warnings,
cautions and notes must be observed, the customer should not assume that all safety measures are indicated in such warnings, cautions and notes, or that other safety measures may not be required.
8
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