Film Capacitors - Power Electronic Capacitors
General purpose applications
Series/Type:
Ordering code:
FilterCap MKD AC – Three phases
B3237X Series
Date:
Version:
2019-05-14
03
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Identification/Classification 1
Film Capacitors - Power Electronic Capacitors
(header 1 + top left bar):
Identification/Classification 2
General purpose applications
(header 2 + bottom left header bar):
Ordering code: (top right header bar)
B3237X Series
Series/Type: (bottom right header bar)
FilterCap MKD AC – Three phases
Preliminary data (optional):
Department:
CAP PW PD
Date:
2019-05-14
Version:
03
TDK Electronics AG 2019. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without TDK Electronics' prior express consent is prohibited.
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Construction and general data
General data
Dielectric
Metallized polypropylene film
Resin filling
Non PCB, soft polyurethane
Safety device
Overpressure disconnector, self-healing technology
Mounting and grounding
Stud on bottom of aluminum can
Cooling
Naturally air-cooled (or forced air cooling)
Degree of protection
Indoor mounting IP20 (IP54 upon request)
Discharge resistor
Upon request
Reference standards
IEC 61071, GB/T 17702, optional IEC 60831, UL 810
Safety approvals
For B32377 type A, and B32378 type A series:
UL 810, CSA C22.2, No 190, Max.600 VRMS (Line voltage),
50/60 Hz, “Protected”, 10 k AFC, Max. 70 °C.
For B32377 type B, and B32377 type C series:
UL 810, CSA C22.2, No 190, Max.1000 VRMS (Line voltage),
50/60 Hz, “Protected”, 10 k AFC, Max. 70 °C.
File no.: E487229, CCN:CYWT2/8
Terminals
B32377 Type A
B32377 Type A, Type B and B32378: M5 screw clamp
terminals
B32377 Type C: M6 screw clamp terminals
B32377 Type B
B32377 Type C
B32378 Type D/E
Figure 1: Capacitor MKD-AC series B32377* and B32378*
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 2 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Specifications and characteristics
Rated capacitance CR: 3x10 … 3x600 μF (for ≥400 µF customized design), Tolerance: ±5%
Voltage VRMS (line to line)
Rated AC voltage VR (line to line)
DC voltage VRDC
250
350
675
330
460
900
420
590
1050
480
680
1200
530
750
1350
600
850
1500
660
935
1650
720
1020
1800
780
1100
1950
850
1200
2100
900
1270
2250
1000
1415
2475
Test data
Voltage between terminals VTT
2.15 VRMS, 2 s
Voltage between terminals and Case VTC
4000 V AC,10 s
Dissipation factor tan δ at 100Hz
≤1.0 10-3
Life test
According to IEC 61071
Life expectancy*
100000 hours for VRMS, ∣ΔC/C∣ ≤3%
Climatic category 40/70/21
Tstg**
−40 ...+85 °C
Tmin
−40 °C
Tmax***
+70 °C
Ths****
+85 °C
Max. permissible humidity
95% (test = 21 days)
Max. permissible altitude
2000 m above sea level
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 3 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Mechanical characteristics
Terminal cross section
B32377 Type A, B32377 Type B and B32378: 25 mm2
B32377 Type C: 35 mm2
Max. torque (case)
M12: 12 Nm
Max. torque (for screw terminal)
B32377 Type A, B32377 Type B and B32378: 2 Nm
B32377 type C: 3.5 Nm
* Note that this life expectancy occurs for the worst case with a maximum temperature hot-spot of +85° Celsius degree. For
other operation temperatures please check the life time curve for further details.
**:Tstg – Storage temperature.
***:Tmax– Maximum operation ambient temperature.
****:Ths– Maximum temperature allowed at the capacitors hot spot. Considering mounting position with terminals to the top.
For other mounting positions, please request evaluation.
Design data
Dimensions (D x H)
According to specification table
Weight approx.
According to specification table
Max. terminal current
Screw clamp terminal:
50 A (B32377 type A)
80 A (B32377 type B)
100 A (B32377 type C)
50 A (B32378)
Electrical characteristics: Clearance and creepage distances
Series
B32377
Type A
B32377
Type B
B32377
Type C
B32378
Type D
B32378
Type E
Diameter
Terminal to terminal
Terminal to case
Mm
75/85/96/116/136
Min.
clearance
mm
Not applicable
Min.
creepage
mm
12.7
Min.
clearance
mm
9.5
Min.
creepage
mm
12.7
96/116/136
Not applicable
12.7
9.5
12.7
116/136
Not applicable
19.1
19.1
19.1
116/136
Not applicable
12.7
9.5
12.7
116/136
Not applicable
19.1
19.1
19.1
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 4 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Capacitor catalog number (type or series designation)
FilterCap MKD AC series
A
B
C
D
E
F
G
H
I
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
B
3
2
3
7
7
A
3
4
0
7
J
0
3
0
A. Indicates termination type
6 = M10 (3x) Screw terminals (delta connection)
7 = M5 (3x) Clamp terminals (type A and B, delta connection)
7 = M6 (3x) Clamp terminals (type C, delta connection)
8 = M5 (4x) Clamp terminals (star connection)
B. Indicates revision status (any letter), in case of S letter it means customized design
C. Indicates first number of voltage VRMS value (any digit)
D. Indicates first and second figure of capacitance value (any two digits)
E. Indicates exponent used as multiplier (any digit)
F. Indicates capacitor tolerance for PEC AC capacitor
J = ±5 %; K = ± 10 %;
G. Indicates coded capacitance value
H. Indicates second number of voltage VRMS value (any digit)
I. Indicates Accessories (any digit)
Label information
Date code explanation
WW Z YYYY
WW Z YYYY: production weeks (e.g.: 49)
WW Z YYYY: produced in Zhuhai (China)
WW Z YYYY: production year (e.g.: 2018)
Bar code explanation
Bar code consists of batch number and serial
number.
Batch number: 9 digits (e.g.: 123456789)
Serial number: 3 digits (e.g.: 001)
Terminal type explanation
Terminals (A): type A terminals
Terminals (B): type B terminals
Terminals (C): type C terminals
Terminals (D): type D terminals
Terminals (E): type E terminals
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 5 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Dimensional drawings
After safety device operation
Max. expansion 12.7 mm
Marking
Tightening torque 12 Nm max.
Toothed lock washer Din 6797
Hexagonal Nut Din 934
M5 screw
Tightening torque 2 Nm max.
Connection:
Figure 2: Series B32377* (Delta connection type A)
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 6 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
After safety device operation
Max. expansion 12.7 mm
Marking
Tightening torque 12 Nm max.
Toothed lock Washer Din 6797
Hexagonal Nut Din 934
M5 screw
Tightening torque 2 Nm max.
Connection:
Figure 3: Series B32377* (Delta connection type B)
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 7 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
After safety device operation
Max. expansion 12.7 mm
Marking
Tightening torque 12 Nm max.
Toothed lock Washer Din 6797
Hexagonal Nut Din 934
M6 screw
Tightening torque 3.5 Nm max.
Connection:
Figure 4: Series B32377* (Delta connection type C)
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 8 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
After safety device operation
Max. expansion 12.7 mm
Marking
Tightening torque 12 Nm max.
Toothed lock Washer Din 6797
Hexagonal Nut Din 934
M5 screw
Tightening torque 2 Nm max.
Connection:
Figure 5: Series B32378* (Star connection with neutral type D)
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 9 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
After safety device operation
Max. expansion 12.7 mm
Marking
Tightening torque 12 Nm max.
Toothed lock Washer Din 6797
Hexagonal Nut Din 934
M5 screw
Tightening torque 2 Nm max.
Connection:
Figure 6: Series B32378* (Star connection with neutral type E)
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 10 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Installation space requirements
1) A minimum distance of 20 mm between the capacitors is necessary to maintain sufficient cooling.
2) Keep at least 20 mm space above the capacitor and do not attach any mounting components at the
crimp or on top. This gap will allow a longitudinal extension of the can in order to ensure that the overpressure disconnector can fully extend.
Figure 7: Installation space requirements
Note: For further details, please check installation manual for MKD-AC capacitors.
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 11 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Technical data of standard products
B32377 series - UL certification up to 600 VRMS (VR/VRMS line to line voltage)
VR/VRMS
V
350/
250
460/
330
590/
420
CR
μF
3×50
3×60
3×70
3×84
3×100
3×150
3×160
3×200
3×250
3×300
3×330
3×400
3×50
3×60
3×70
3×80
3×100
3×120
3×150
3×200
3×250
3×300
3×330
3×50
3×60
3×70
3×80
3×100
3×150
3×200
3×250
Ordering code
B32377A2506J050
B32377A2606J050
B32377A2706J050
B32377A2846J050
B32377A2107J050
B32377A2157J050
B32377A2167J050
B32377A2207J050
B32377A2257J050
B32377A2307J050
B32377A2337J050
B32377A2407J050
B32377A3506J030
B32377A3606J030
B32377A3706J030
B32377A3806J030
B32377A3107J030
B32377A3127J030
B32377A3157J030
B32377A3207J030
B32377A3257J030
B32377A3307J030
B32377A3337J030
B32377A4506J020
B32377A4606J020
B32377A4706J020
B32377A4806J020
B32377A4107J020
B32377A4157J020
B32377A4207J020
B32377A4257J020
Imax
A
21
24
26
28
30
35
37
42
45
54
56
60
23
26
29
30
33
38
42
50
54
60
63
25
28
30
31
36
46
52
60
Î
A
1300
1500
1800
1900
1800
2100
2200
3000
3000
4500
5000
4800
1500
1400
1500
1500
1400
2000
2500
3600
4200
5500
6000
1300
1300
1500
1300
1700
3200
3360
4880
D
mm
75
75
75
75
75
75
75
96
96
116
116
116
75
75
75
75
75
85
96
116
116
136
136
75
75
75
75
85
116
116
136
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
H
mm
163
163
163
163
200
230
230
236
281
236
236
281
163
200
200
230
275
245
245
236
281
236
236
200
230
245
275
275
236
281
251
Terminal
type
A
A
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
A
A
B
B
B
B
A
A
A
A
A
B
B
B
Weight
kg
0.8
0.8
0.8
0.8
1.0
1.2
1.2
2.0
2.2
2.8
2.8
3.2
0.8
1.0
1.0
1.2
1.4
1.6
2.0
2.8
3.2
3.7
3.7
1.0
1.2
1.2
1.4
1.8
2.8
3.2
3.9
Packing
Unit
6
6
6
6
6
6
6
4
4
4
4
4
6
6
6
6
6
4
4
4
4
4
4
6
6
6
6
4
4
4
4
2019-05-14
Page 12 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
B32377 series - UL certification up to 600 VRMS (VR/VRMS line to line voltage)
VR/VRMS
V
680/
480
750/
530
850/
600
CR
μF
3×30
3×40
3×50
3×60
3×70
3×74
3×80
3×100
3×130
3×138
3×150
3×170
3×200
3×20
3×25
3×30
3×40
3×45
3×50
3×62
3×70
3×75
3×80
3×100
3×120
3×133
3×150
3×15
3×20
3×25
3×30
3×38
3×50
3×50
3×70
3×83
3×90
3×100
3×130
Ordering code
B32377A4306J080
B32377A4406J080
B32377A4506J080
B32377A4606J080
B32377A4706J080
B32377A4746J080
B32377A4806J080
B32377A4107J080
B32377A4137J080
B32377B4137J880
B32377A4157J080
B32377A4177J080
B32377A4207J080
B32377A5206J030
B32377A5256J030
B32377A5306J030
B32377A5406J030
B32377A5456J030
B32377A5506J030
B32377A5626J030
B32377A5706J030
B32377A5756J030
B32377A5806J030
B32377A5107J030
B32377A5127J030
B32377B5137J330
B32377A5157J030
B32377A6156J000
B32377A6206J000
B32377A6256J000
B32377A6306J000
B32377A6386J000
B32377A6506J000
B32377B6506J000
B32377A6706J000
B32377A6836J000
B32377A6906J000
B32377A6107J000
B32377A6137J000
Imax
A
20
24
27
30
33
35
35
40
47
49
50
54
59
17
20
23
28
30
32
36
40
41
44
44
52
55
58
14
18
21
24
29
34
36
40
45
48
52
72
Î
A
900
1200
1100
1200
1500
1600
2000
2000
3200
3200
2900
4200
4465
950
850
900
900
1000
1700
2800
2600
2550
3150
2700
3500
3500
2840
780
1100
1300
1600
1440
1400
1700
1300
3600
3000
2700
3400
D
mm
75
75
75
75
85
96
85
96
116
116
116
136
136
75
75
75
75
75
96
116
116
116
136
116
136
136
136
75
85
96
96
96
85
96
85
136
136
136
136
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
H
mm
200
200
245
275
245
230
275
275
251
251
281
236
251
163
200
230
275
275
206
206
206
206
206
236
236
251
281
163
163
163
163
200
275
230
350
206
236
236
281
Terminal
type
A
A
A
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
B
B
B
B
B
B
B
B
B
A
A
A
A
A
A
A
A
B
B
B
B
Weight
kg
1.0
1.0
1.2
1.4
1.6
1.9
1.8
2.2
3.0
3.0
3.2
3.7
3.9
0.8
1.0
1.2
1.4
1.4
1.7
2.5
2.5
2.5
3.2
2.8
3.7
3.9
4.3
0.8
1.0
1.0
1.4
1.7
1.8
1.9
2.2
3.2
3.7
3.7
4.3
Packing
Unit
6
6
6
6
4
4
4
4
4
4
4
4
4
6
6
6
6
6
4
4
4
4
4
4
4
4
4
6
4
4
4
4
4
4
4
4
4
4
4
2019-05-14
Page 13 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
B32377 series - UL certification up to 1000 VRMS (VR/VRMS line to line voltage)
VR/VRMS
CR
Ordering code
Imax Î
D
H
Terminal
V
μF
A
A
mm mm
type
935/
3×40 B32377A6406J060 32
1800
116 200
C
660
3×50 B32377A6506J060 36
1900
116 230
C
3×60 B32377A6606J060 36
2000
116 245
C
3×70 B32377A6706J060 43
2300
116 275
C
3×75 B32377A6756J060 43
2300
116 275
C
3×80 B32377A6806J060 44
2400
116 275
C
3×90 B32377A6906J060 50
3200
136 245
C
3x100 B32377A6107J060 54
3400
136 245
C
3x110 B32377A6117J060 55
3200
136 275
C
1020/
3×25 B32377A7256J020 25
1300
96
206
B
720
3×30 B32377A7306J020 28
1400
96
206
B
3×34 B32377A7346J020 33
1400
96
236
B
3×38 B32377A7386J020 35
2000
116 200
C
3×40 B32377A7406J020 36
2000
116 200
C
3×50 B32377A7506J020 38
2100
116 230
C
3×56 B32377A7566J020 40
2100
116 245
C
3×60 B32377A7606J020 42
2200
116 275
C
3×65 B32377A7656J020 44
2000
116 275
C
3×75 B32377A7756J020 48
3000
136 230
C
3x100 B32377B7107J020 56
3200
136 275
C
1100/
3x25 B32377A7256J080 25
1100
96
236
B
780
3x29 B32377A7296J080 28
1200
96
251
B
3x30 B32377A7306J080 30
1400
116 200
C
3x35 B32377A7356J080 31
1900
116 200
C
3x40 B32377A7406J080 35
1800
116 230
C
3x47 B32377A7476J080 38
1860
116 245
C
3×50 B32377A7506J080 40
1740
116 275
C
3×56 B32377A7566J080 42
1740
116 275
C
3×60 B32377A7606J080 44
2000
136 230
C
3×70 B32377A7706J080 48
2800
136 245
C
3×75 B32377A7756J080 50
2500
136 275
C
1200/
3×10 B32377A8106J050 17
750
96
169
B
850
3×15 B32377A8156J050 21
900
96
206
B
3×20 B32377A8206J050 23
1100
96
236
B
3×25 B32377A8256J050 26
1400
116 200
C
3×31 B32377A8316J050 30
1800
116 200
C
3×35 B32377A8356J050 33
1600
116 230
C
3×42 B32377B8426J050 37
2500
136 200
C
3×50 B32377A8506J050 41
2400
136 230
C
3×55.8 B32377A8566J050 43
2600
136 230
C
3×60 B32377A8606J050 45
2200
136 245
C
3×70 B32377A8706J050 50
2500
136 275
C
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
Weight
Kg
2.5
2.8
3.2
3.2
3.2
3.2
3.9
3.9
4.3
1.7
1.7
1.9
2.5
2.5
2.8
3.0
3.2
3.2
3.7
4.3
1.9
2.0
2.5
2.5
2.8
3.0
3.2
3.2
3.7
3.9
4.3
1.4
1.7
1.9
2.5
2.5
2.8
3.2
3.7
3.7
3.9
4.3
Packing
Unit
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
2019-05-14
Page 14 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
B32377 series - UL certification up to 1000 VRMS (VR/VRMS line to line voltage)
VR/VRMS
V
1270/
900
1415/
1000
CR
μF
3×20
3×25
3×30
3×35
3×40
3×45
3×50
3×56
3×60
3×15
3×20
3×25
3×30
3×35
3×40
3×45
3×50
3×56
Ordering code
B32377A9206J000
B32377A9256J000
B32377A9306J000
B32377A9356J000
B32377A9406J000
B32377A9456J000
B32377A9506J000
B32377A9566J000
B32377A9606J000
B32377A1156J000
B32377A1206J000
B32377A1256J000
B32377A1306J000
B32377A1356J000
B32377A1406J000
B32377A1456J000
B32377A1506J000
B32377B1566J000
Imax
A
30
34
36
42
46
50
54
56
60
26
31
37
42
44
49
53
56
66
Î
A
1200
1400
1600
1900
2100
2300
2200
2400
2200
1200
1300
1500
2000
2000
2000
2200
2100
2000
D
mm
116
116
116
116
136
136
136
136
136
116
116
116
136
136
136
136
136
136
H
mm
200
200
230
245
230
245
275
275
305
200
200
245
230
245
275
275
305
350
Terminal
type
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Weight
kg
2.5
2.5
2.8
3.0
3.7
3.9
4.3
4.3
4.7
2.5
2.5
3.0
3.7
3.9
4.3
4.3
4.7
5.5
Packing
Unit
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Weight
kg
1.9
2.1
2.5
1.9
1.9
2.5
1.9
1.9
1.9
2.1
1.9
1.9
2.1
2.5
Packing
Unit
4
4
4
4
4
4
4
4
4
4
4
4
4
4
B32378 series - UL certification up to 600 VRMS (VR/VRMS line to line voltage)
VR/VRMS
V
590/
420
680/
480
750/
530
850/
600
CR
μF
3×150
3×200
3×250
3×100
3×150
3×200
3×80
3×100
3×120
3×150
3×80
3×100
3×120
3×150
Ordering code
B32378A4157J020
B32378A4207J020
B32378A4257J020
B32378A4127J080
B32378A4157J080
B32378A4207J080
B32378A5806J030
B32378A5107J030
B32378A5127J030
B32378A5157J030
B32378A6806J000
B32378A6107J000
B32378A6127J000
B32378A6157J000
Imax
A
27
31
34
25
28
32
22
24
27
30
23
25
28
31
Î
A
4500
4700
4300
4000
5100
3800
3000
3700
4500
4300
3300
4000
3700
3400
D
mm
116
116
116
116
116
116
116
116
116
116
116
116
116
116
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
H
mm
146
169
206
146
146
206
146
146
146
169
146
146
169
206
Terminal
type
D
D
D
D
D
D
D
D
D
D
D
D
D
D
2019-05-14
Page 15 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
B32378 series - UL certification pending (VR/VRMS line to line voltage)
VR/VRMS
V
935/
660
1020/
720
1100/
780
1200/
850
1270/
900
1415/
1000
CR
μF
3×80
3×100
3×120
3×60
3×70
3×80
3×100
3×120
3×50
3×60
3×70
3×80
3×100
3×50
3×60
3×70
3×80
3×100
3×40
3×60
3×80
3×30
3×60
3×80
Ordering code
B32378A6806J060
B32378A6107J060
B32378A6127J060
B32378A7606J020
B32378A7706J020
B32378A7806J020
B32378A7107J020
B32378A7127J020
B32378A7506J080
B32378A7606J080
B32378A7706J080
B32378A7806J080
B32378A7107J080
B32378A8506J050
B32378A8606J050
B32378A8706J050
B32378A8806J050
B32378A8107J050
B32378A9406J000
B32378A9606J000
B32378A9806J000
B32378A1306J000
B32378A1606J000
B32378A1806J000
Imax
A
24
26
29
20
23
25
25
30
19
22
24
26
30
21
23
26
28
32
21
23
30
17
28
31
Î
A
3500
3400
3000
2800
3300
2900
3600
3600
2700
2500
2900
2400
3000
2500
3000
2400
2700
2700
2200
2600
2500
2000
2500
2500
D
mm
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
116
H
mm
146
169
206
146
146
169
169
206
146
169
169
206
206
169
169
206
206
236
169
206
236
169
236
251
Terminal
type
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Weight
kg
1.9
2.1
2.5
1.9
1.9
2.1
2.1
2.5
1.9
2.1
2.1
2.5
2.5
2.1
2.1
2.5
2.5
2.8
2.1
2.5
2.8
2.1
2.8
3.0
Packing
Unit
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Remark: just for the series B32378 star connection applies the formula for transformation of voltage
line-neutral to line to line. The conversion relationship is defined as (line to line voltage) 𝐕𝐥𝐥 √𝟑 ∙
𝐕𝐥𝐧 phase voltage, line-neutral).
Display of ordering codes for TDK Electronics products
The ordering code for one and the same product can be represented differently in data sheets, data books,
other publications, on the company website, or in order-related documents such as shipping notes, order
confirmations and product labels. The varying representations of the ordering codes are due to
different processes employed and do not affect the specifications of the respective products.
Detailed information can be found on the Internet under www.tdk-electronics.tdk.com/orderingcodes.
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 16 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Terms
Design
The winding element of the MKD capacitor consists of metallized polypropylene film. This winding
construction achieves low losses and a high pulse-current withstand capability. Soft PU resin is used
for impregnation of the capacitor.
Contacting
The end faces of the windings are contacted by metal spraying to ensure a reliable and lowinductance connection between the leads and layers. The leads are welded or soldered to these end
faces, brought out through insulating elements (plastic) and soldered to the terminals.
Impregnation
All hollows between the windings and between the windings and the case are filled with an
impregnating agent. Besides increasing dielectric strength, this improves heat dissipation from inside
a capacitor. The impregnating agents that we use are free of PCB and halogens.
Self-healing
All MKD capacitors are self-healing, i. e. voltage breakdowns heal in a matter of microseconds and
hence do not produce a short circuit.
Breakdowns can occur under heavy electrical load as a result of weaknesses or pores in the dielectric.
The integrity of self-healing capacitors is not affected by such breakdowns.
1. Dielectric (Polypropylene)
2. Metallization
3. Material-displacing shock wave
4. Air gap with metal vapor
5,6. Plasma zone
7. Boundary layer between gas-phase dielectric
and plasma zones
8. Puncture channel
9. Gas-phase dielectric
10. Zone of displaced metallization and
dielectric
Figure 8: Description of Self-healing technology
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 17 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
When a breakdown occurs, the dielectric in a breakdown channel is broken down into its atomic
components by the electric arc that forms between the electrodes. At the high temperatures of as
much as 6000 K, a plasma is created that explodes out of the channel region and pushes the
dielectric layers apart. The actual self-healing process starts with the continuation of the electric arc in
the propagating plasma. Here the metal layers are removed from the metal edges by evaporation.
Insulation areas are formed. The rapid expansion of the plasma beyond the areas of insulation and its
cooling in the areas of less field strength allow the discharge to extinguish after a few microseconds.
The area of insulation that is created is highly resistive and voltage-proof for all operating
requirements of the capacitor. The self-healing breakdown is limited in current and so it does not
represent a short circuit. The self-healing process is so brief and low in energy that the capacitor also
remains fully functional during the breakdown.
Characteristics
Equivalent circuit diagram
Any real capacitor can be modelled by the following schematic:
Figure 9: Equivalent circuit diagram
Symbol
Ls
Rs
Rp
C
Description
Series inductance
Series resistance, due to contacts(leads, sprayed metal and film metallization
Parallel resistance, due to insulation resistance
Capacitance
Unit
H
Ω
Ω
F
C, RS and LS are magnitudes that vary in the frequency domain (AC).
RP is a magnitude defined in DC (insulation resistance).
Rated capacitance CR
It is referred to a test temperature of +20 ℃ and a measuring frequency range of 50 Hz to 1 kHz.
Capacitance tolerance range
It is the range within which the actual capacitance may differ from rated capacitance. The actual
capacitance is to be measured at a temperature of +20 ℃. This range results from variances in
materials and manufacturing processes. The standard manufacturing tolerance for PP film capacitors
is ±10% or ‘K’ tolerance or ±5%, ‘J’ tolerance.
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 18 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Temperature dependence of capacitance
The capacitance variation in the permissible temperature range is not linear, but it is reversible, the
characteristic change in capacitance ΔC/C as a function of test temperature is shown as follows:
2%
Relative Capacitance Change
ΔC/C versus Temperature T
ΔC/C
0%
-2%
-4%
-6%
-8%
-60 -40 -20 0
20 40 60 80 100
T(℃)
Figure 10: Temperature dependence of capacitance
Capacitance drift
Capacitance is subject to irreversible in addition to reversible changes, i.e. capacitance drift, the sum
of all time-dependent, irreversible changes of capacitance during operating life. This variation is
stated in percent of the value at delivery. The typical figure is +1/−3%.
Rated AC voltage VR
The maximum operating peak recurrent voltage of either polarity of a reversing type waveform for
which the capacitor has been designed.
Unlike what is common in other standard (e.g. B32304* 3–phase capacitor series for PFC application)
therefore, the rated voltage VR is not the RMS value, but the maximum or peak value of the capacitor
voltage. The voltage at which the capacitor may be operated is dependent on other factors (especially
current and frequency) besides rated voltage.
Voltage VRMS
It is the Root Mean Square (RMS) voltage of maximum permissible value of sinusoidal AC voltage in
continuous operation.
Figure 11: Voltage VRMS
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 19 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Rated DC voltage VRDC
It is the maximum operating peak voltage of either polarity but of non-reversing type waveform, for
which the capacitor has been designed, for continuous operation.
Non-recurrent surge voltage VS
A peak voltage induced by a switching or any other disturbance of the system which is allowed for a
limited number of times and for durations shorter than the basic period.
Figure 12: Non-recurrent surge voltage VS
Maximum duration: 50 ms/pulse
Maximum number of occurrences: 1000 (during load)
Max. Recurrent peak voltage û
This is the permissible, max. recurrent peak voltage that may appear for max.1% of the period.
Figure 13: Max. Recurrent peak voltage û
Symmetric alternating voltage û𝒂𝒄
The peak values of a symmetrical alternating voltage applied to the capacitor is a decisive factor for
the dielectric losses.
For AC capacitors:
û
V
Insulation voltage Vi
It is the rms rated value of the insulation voltage of capacitive elements and terminals to case or earth.
If not specified, the rms value of the insulating voltage is equivalent to the rated voltage divided by √2.
Maximum current Imax
It is the maximum rms current for continuous operation, but could not be higher than maximum
terminal current. A higher current than proposal Imax value could be possible in lower ambient
temperature.
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 20 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Maximum peak current I
It is the maximum current amplitude which occurs instantaneously during continuous operation. The
maximum peak current and the maximum rate of voltage rise (dV/dt)max on a capacitor are related as
follows:
I
C ∙
dV
dt
Maximum surge current I
It is the peak non-repetitive current induced by switching or any other disturbance of the system
permitted for a limited number of times, at durations shorter than the basic period.
I
C ∙
Maximum duration: 50 ms/pulse
Maximum number of occurrences: 1000 (during load)
dV
dt
Self-inductance L
The self-inductance is produced by the inductance of the terminals and the windings. Because of the
special kind of contacting in self-healing capacitors (large area metal spraying covering all windings),
the self-inductance is particularly low. It allows the resonance frequency to be determined:
f
1
2π L
∙C
The resonance frequency is high for all capacitors accordingly.
Insulation Resistance (Rins)
The dielectric of a capacitor has a large area and a short length. Even if the material is a good isolator
there always flows a certain current between the charged electrodes (the current increases
exponentially with the temperature). This leakage can be described as a parallel resistance with a
high value, an Insulation Resistance.
Figure 14: Insulation Resistance (Rins)
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 21 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Insulation resistance and self-discharge time constant
The insulation values for the individual components according to the capacitance are stated as an
insulation resistance Rins in MΩ or a self-discharge time constant
τ
R
τ in seconds.
∙C
Series resistance RS
Resistive losses occur in the electrodes in the contacting and in the inner wiring. These are comprised
in the series resistance RS of a capacitor.
The series resistance RS generates the ohmic losses (I2ⅹRS) in a capacitor. It is largely independent
of frequency. The figures stated in selection charts apply to +20℃ capacitor temperature.
Dissipation factor tan δ
The equivalent circuit diagram used for the losses in a capacitor can be shown as follows:
Figure 15: Simplified equivalent circuit diagram of a capacitor
Symbol
C
Lself
ESR
Description
Capacitor
Self-inductance
Equivalent series resistance, representing the entire active power in
capacitor
Unit
F
H
Ω
The self-inductance and capacitance of a capacitor produce its resonance frequency (natural
frequency).
tan δ f
tan δ
Rs ∙ ω ∙ C
From the frequency dependence of the equivalent series resistance can be derived:
ESR
Symbol
tan δ
tan δ0
RS
tan δ
ω∙C
Rs
Description
Dissipation factor of capacitor
Dissipation factor of dielectric
Series resistance
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
tan δ
ω∙C
Unit
Ω
2019-05-14
Page 22 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Dielectric dissipation factor tan δ0
The dissipation factor tan δ0 of the dielectric is assumed to be constant for all capacitors in their
frequency range of use. The figures stated in data sheets apply to rated operation.
Expected Fit rate λ
The FIT (Failure In Time) of a component is defined as the number of expected failures in 109 hours
of operation.
The FIT rate is calculated on the basis of the number of components operating in the field and the
estimated hours of operation. All the reports of failures are taken into consideration for this calculation,
which is updated every year. The other values in the graph are given as indication and calculated
based on acceleration factors.
The failure criterion is capacitance drop higher than 3%.
FIT Rate at Ths
100
FIT
10
1
0,1
0,7
0,8
0,9
Voltage / VRMS
1
55℃
60º C
65º C
70º C
1,1
1,2
75℃
85º C
Figure 16: Expected Fit rate λ
Thermal design
In order to scale a capacitor correctly for a particular application, the permissible ambient temperature
has to be determined. This can be taken from the diagram “Permissible ambient temperature TA vs
total power dissipation P”after calculating the power dissipation (for further details please check
individual data sheets).
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 23 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Calculation of power dissipation P
The total power dissipation P is composed of the dielectric losses (PD) and the resistive losses (PR).
Generally a secondary sinusoidal AC voltage can be used for calculating with sufficient accuracy.
P
P
Symbol
ûac
f0
C
tan δ0
û
P
∙ π ∙ f ∙ C ∙ tan δ
Description
Peak value of symmetrical AC voltage applied to capacitor
Fundamental frequency
Capacitance
Dissipation factor of dielectric
P
Symbol
I
RS
P
Unit
V
Hz
F
-
I ∙R
Description
RMS value of capacitor current
Series resistance at maximum hot-spot temperature
Unit
A
Ω
The RS figure at maximum hot-spot temperature is used to calculate the resistive losses. In selection
charts and data sheets the figure is stated for 20 ℃ capacitor temperature. The conversion factor is
as follows:
R
°
1.25 ∙ R
°
Thermal resistance Rth
The thermal resistance is defined as the ratio of a temperature difference and the power dissipation
produced in a capacitor. The decisive factor here is ΔTcap where the temperature difference between
an external reference point of the coolant (e.g. air) surrounding the capacitor and the hot spot (zone
with highest temperature occurring in the component). In a steady state:
R
Symbol
Rth
ΔTcap
P
∆T
P
Description
Thermal resistance
Temperature difference between hot-spot and ambient
Power dissipation
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
Unit
K/W
K
W
2019-05-14
Page 24 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
The temperature difference depends on a large number of different factors. The thermal resistance is
a function of several parameters such as the working temperature and the power dissipation of the
capacitor.
After installation of the capacitor, it is necessary to verify that maximum hot-spot temperature is not
exceeded at extreme service conditions. For detail calculations please refer to single datasheet part
number for further details.
Life expectancy tLD
The life expectancy tLD is based on the exclusive effect of Voltage and Temperature (hot-spot Ths)
applied to the capacitor dielectric and electrodes (other factors are not considered in the model such
as environmental or mechanical effects).
Hot Spot Temperature (Ths): as the sum of ambient temperature plus the heating induced by the
current (IRMS) in the dielectric which is measured inside of capacitor. Current is an indirect parameter
under consideration which affects the temperature Ths.
Lifetime estimation formula as follows:
t
t ∙e
/
V
V
Symbol
Description
Unit
t2
Estimated lifetime at temperature T2 and Voltage V2
hour
t1
Reference life expectancy (e.g. 100,000 hours for VR ∣ΔC/C∣≤3%)
hour
V2
Variable Voltage (Rated AC voltage)
VAC
V1
Reference Voltage (Rated AC voltage)
VAC
T1
Reference temperature (e.g. 70℃)
℃
T2
Variable temperature
℃
A
Acceleration factor of temperature
-
n
Acceleration factor of voltage
-
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 25 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Lifetime Expectancy Graphs
The lifetime estimations below shows the standard expected lifetime of 100,000 hours (at +85 °C hotspot) are only theoretical calculations based on endurance test results performed according to
IEC61071 standard.
Expected life time at Ths
1,3
85℃
1,2
75℃
70℃
1,1
V/VRMS
65℃
1
60℃
55℃
0,9
50℃
0,8
0,1
1
10
tld/tld(co)
Figure 17: Service life tLD at different hot-spot temperature (Ths) and voltage VRMS.
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 26 of 29
Film Capacitors - Power Electronic Capacitors
General purpose applications
B3237X Series
FilterCap MKD AC – Three phases
Cautions and warnings
Capacitors with dents of more than 1 mm depth or any other mechanical damage must not be used.
Check the tightness of the connections / terminals periodically.
The energy stored in capacitors may be lethal. To prevent any risk of shock, the capacitors must be
discharged and short-circuited before handling.
Failure to follow cautions may result in the worst case in premature failure, bursting and fire.
Safety
Electrical or mechanical misapplication of capacitors may be hazardous. Personal injury or property
damage may result from bursting of the capacitor or expulsion of molten material due to mechanical
disruption of the capacitor.
Ensure good, effective grounding for capacitor enclosures.
Observe appropriate safety precautions during operation (self-recharging phenomena and the high energy
stored in capacitors).
Handle capacitors carefully, as they may still be charged even after disconnection.
The terminals of capacitors, connected busbars and cables as well as other devices may also be
energized.
Follow good engineering practice.
The maximum permissible fault current (AFC) of 10 kA in accordance with the UL 810 standard must be
assured by the application.
Thermal load
After installing the capacitor, verify that the maximum hot-spot temperature is not exceeded under extreme
operating conditions.
Mechanical protection
The capacitor has to be installed to assure that no mechanical damage or dents in the case occur.
Storage and operating conditions
Do not use or store capacitors in corrosive atmospheres, especially where chloride gas, sulfide gas, acid,
alkali, salt or the like are present. In dusty environments, regular maintenance and cleaning, especially of
the terminals, is required to avoid creating a conductive path between phases and/or phases and ground.
Overpressure disconnector
To ensure full functionality of an overpressure safety disconnector, the following points must be observed:
1. The elastic elements must not be hindered, i.e.
Connecting lines must be flexible leads (cables)
There must be sufficient space (min.15 mm) for expansion above the connections
The metal cover must not be retained by rigid parts such as busbars.
2. The stress parameters of the capacitor must be within the IEC 61071 specification.
Service life expectancy
Electrical components do not have an unlimited service life expectancy: this also applies to self-healing
capacitors. The maximum service life expectancy may vary depending on the application in which the
capacitor is used.
CAP PW PD
Please read Cautions and warnings and
Important notes at the end of this document.
2019-05-14
Page 27 of 29
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application. As a
rule we are either unfamiliar with individual customer applications or less familiar with them than
the customers themselves. For these reasons, it is always ultimately incumbent on the customer
to check and decide whether a product with the properties described in the product specification is
suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state
of the art, even if they are operated as specified. In customer applications requiring a very high
level of operational safety and especially in customer applications in which the malfunction or
failure of an electronic component could endanger human life or health (e.g. in accident
prevention or life-saving systems), it must therefore be ensured by means of suitable design of the
customer application or other action taken by the customer (e.g. installation of protective circuitry
or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or
failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our Material
Data Sheets on the Internet (www.tdk-electronics.tdk.com/material). Should you have any more
detailed questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products. Consequently,
we cannot guarantee that all products named in this publication will always be available.
The aforementioned does not apply in the case of individual agreements deviating from the
foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to our General Terms
and Conditions of Supply.
7. Our manufacturing sites serving the automotive business apply the IATF 16949 standard.
The IATF certifications confirm our compliance with requirements regarding the quality
management system in the automotive industry. Referring to customer requirements and
customer specific requirements (“CSR”) TDK always has and will continue to have the policy of
respecting individual agreements. Even if IATF 16949 may appear to support the acceptance of
unilateral requirements, we hereby like to emphasize that only requirements mutually agreed
upon can and will be implemented in our Quality Management System. For clarification
purposes we like to point out that obligations from IATF 16949 shall only become legally binding if
individually agreed upon.
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Important notes
8. The trade names EPCOS, CeraCharge, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP, CTVS,
DeltaCap, DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD, MKK,
MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PowerHap, PQSine, PQvar,
SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, ThermoFuse,
WindCap are trademarks registered or pending in Europe and in other countries. Further
information will be found on the Internet at www.tdk-electronics.tdk.com/trademarks.
Release 2018-10
Page 29 of 29
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