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Filter and DC-link capacitors are key passive components for the power conversion system

Filter and DC-link capacitors are key passive components for the power conversion system Featured Image
  • Filter and DC-link capacitors are key passive components for the power conversion system
  • Filter and DC-link capacitors are key passive components for the power conversion system
  • Filter and DC-link capacitors are key passive components for the power conversion system

Short Description:

The DC-link capacitor’s purpose is to provide a more stable DC voltage, limiting fluctuations as the inverter sporadically demands heavy current.

CRE DC link capacitor apply for dry type technology which ensure its high performance, safety operating, long lifespan etc.

 


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Filter and DC-link capacitors are key passive components for the power conversion system,
Custom Film Capacitor,

DC link capacitor

DC-Link capacitors form an essential stage in power conversion for many applications.

Demanding applications possess cost, harsh environment, and stringent reliability constraints. Although circuit designs can use different approaches, the long-standing core of power conversion designs includes DC-Link capacitors.

DC-Link capacitors can improve system energy density and resolve the physical challenges of ripples introduced by rapid switching that is inherent to switching power conversions.

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Application

Power electronic capacitors are components for equipment that working at high power. Capacitors are used to convert and control this power.

1. Three-phase Pulse Width Modulation (PWM) inverters,

2. Photovoltaic and wind power inverters

3. Industrial motor drives

4. Automotive onboard chargers and inverters

5. Medical equipment,

6. Power supplies etc.

Life expectancy

1

Outline drawing

 

ΦD(mm)

P(mm)

H1(mm)

S

F

M

76

32

20

M12×16

M6×10

M8×20

86

32

20

M12×16

M6×10

M8×20

96

45

20

M12×16

M6×10

M8×20

116

50

22

M12×16

M6×10

M8×20

136

50

30

M16×25

M6×10

M8×20

2

Voltage     450V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight（Kg）
380 76 75 50 10 3.8 11.4 45 2.2 4.5 32 0.5
500 76 100 40 8 4.0 12.0 65 1.5 3.2 32 0.6
750 76 130 50 5 3.8 11.3 65 1.6 3.0 32 0.75
500 86 75 50 8 4.0 12.0 55 1.8 3.7 32 0.8
1000 86 130 50 5 5.0 15.0 70 1.5 2.7 32 1.1
650 86 100 40 5 3.3 9.8 75 1.2 3.0 32 0.9
650 86 95 40 5 3.3 9.8 75 1.2 3.0 32 0.85
650 96 75 50 5 3.3 9.8 60 1.5 3.7 45 0.75
1250 96 130 50 4 5.0 15.0 80 1 3.1 45 1.2
1800 116 130 50 4 7.2 21.6 85 0.8 3.5 50 1.6
1450 86 190 60 4 5.8 17.4 90 0.9 2.7 32 1.55
2700 116 190 60 3 8.1 24.3 100 0.8 2.5 50 2.45

 

Voltage    600V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight（Kg）
250 76 75 40 15 3.8 11.3 40 3.1 4.0 32 0.5
320 76 100 40 10 3.2 9.6 40 2.2 5.7 32 0.6
470 76 130 45 12 5.6 16.9 60 1.8 3.1 32 0.75
330 86 75 40 15 5.0 14.9 45 2.4 4.1 32 0.8
600 86 120 45 12 7.2 21.6 60 1.3 4.3 32 1.05
650 86 130 50 12 7.8 23.4 70 1.2 3.4 32 1.1
650 86 95 50 15 9.8 29.3 65 1.2 3.9 32 0.85
1000 86 180 50 12 12.0 36.0 70 1.5 2.7 32 1.5
420 96 75 45 15 6.3 18.9 50 2 4.0 45 0.75
800 96 130 60 12 9.6 28.8 75 1.5 2.4 45 1.2
950 116 100 60 10 9.5 28.5 90 1.2 2.1 50 1.25
1200 116 130 70 8 9.6 28.8 80 1.2 2.6 50 1.6
1800 116 180 50 8 14.4 43.2 80 1.2 2.6 50 2.4
2700 116 260 70 5 13.5 40.5 100 0.9 2.2 50 3.2
2500 136 180 60 5 12.5 37.5 100 0.8 2.5 50 3.7
3750 136 260 70 4 15.0 45.0 115 0.7 2.2 50 4.7

 

Voltage   700V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
200 76 75 40 15 3.0 9.0 40 4 3.1 32 0.5
400 76 130 45 15 6.0 18.0 60 2 2.8 32 0.75
420 76 130 50 15 6.3 18.9 60 2 2.8 32 0.75
600 86 125 60 15 9.0 27.0 45 3.2 3.1 32 1.05
550 86 130 50 12 6.6 19.8 65 1.8 2.6 32 1.1
680 96 130 45 12 8.2 24.5 75 1.5 2.4 45 1.2
720 96 125 60 12 8.6 25.9 55 2.6 2.5 45 1.15
1000 116 130 50 10 10.0 30.0 80 1 3.1 50 1.6
1000 96 180 60 10 10.0 30.0 75 1.2 3.0 45 1.6
1500 116 180 60 7 10.5 31.5 85 0.9 3.1 50 2.4
2000 116 230 70 7 14.0 42.0 85 0.8 3.5 50 3
2000 136 180 60 7 14.0 42.0 90 0.75 3.3 50 3.7
3000 136 230 70 5 15.0 45.0 100 0.7 2.9 50 4.2
3300 136 260 70 5 16.5 49.5 120 0.6 2.3 50 4.7

 

Voltage   800V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight（Kg）
110 86 80 45 20 2.2 6.6 75 2 1.8 32 0.8
150 86 95 45 20 3.0 9.0 80 1.5 2.1 32 0.85
250 86 75 45 15 3.8 11.3 45 3.1 3.2 32 0.8
360 86 130 55 12 4.3 13.0 65 2.2 2.2 32 1.1
470 86 130 45 12 5.6 16.9 70 2.8 1.5 32 1.1
600 96 130 55 10 6.0 18.0 75 2.2 1.6 45 1.2
730 86 180 55 10 7.3 21.9 70 1.8 2.3 32 1.5
750 86 180 55 12 9.0 27.0 75 1.8 2.0 32 1.5
1000 96 180 60 10 10.0 30.0 75 1.3 2.7 45 1.6
900 116 130 65 7 6.3 18.9 80 1.4 2.2 50 1.6
1400 116 180 65 7 9.8 29.4 80 0.9 3.5 50 2.4
1000 116 125 60 7 7.0 21.0 70 1.4 2.9 50 1.55
2000 116 230 65 5 10.0 30.0 85 0.9 3.1 50 3
2800 136 230 70 5 14.0 42.0 100 0.8 2.5 50 4.2

 

Voltage   900V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight（Kg）
160 76 75 40 15 3.0 9.0 35 3 5.4 32 0.5
320 76 130 50 15 5.0 14.9 60 3.2 1.7 32 0.75
350 76 125 50 15 5.0 15.0 40 2.8 4.5 32 0.75
210 86 75 40 15 3.2 9.5 40 2.2 5.7 32 0.8
450 86 125 45 12 5.4 16.2 50 2.7 3.0 32 1.1
420 86 130 45 12 5.0 15.1 65 2.5 1.9 32 1.1
490 86 120 45 10 4.9 14.7 70 1.8 2.3 32 1.05
510 86 120 45 10 5.1 15.3 70 1.8 2.3 32 1.05
660 86 180 50 10 6.6 19.8 70 2 2.0 32 1.5
900 86 230 50 10 9.0 27.0 65 2.1 2.3 32 1.8
580 96 125 50 10 5.8 17.4 55 3.3 2.0 45 1.2
540 96 130 50 7 3.8 11.3 75 1.5 2.4 45 1.2
630 116 100 55 7 4.4 13.2 60 2 2.8 50 1.3
860 116 125 55 7 6.0 18.1 60 2.2 2.5 50 1.55
810 116 130 60 7 5.7 17.0 80 1.2 2.6 50 1.6
1250 116 180 60 7 8.8 26.3 80 1.2 2.6 50 2.4
1700 116 230 60 5 8.5 25.5 80 1.1 2.8 50 3
1700 136 180 65 6 10.2 30.6 100 0.9 2.2 50 3.7
2400 136 230 70 5 12.0 36.0 100 0.95 2.1 50 4.2

 

Voltage   1100V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
130 76 75 40 15 1.9 5.6 35 4.5 3.6 32 0.5
260 76 130 45 15 3.8 11.3 60 2.8 2.0 32 0.75
280 76 125 50 12 3.3 9.9 35 4 4.1 32 0.75
170 86 75 50 15 2.6 7.7 45 5 2.0 32 0.8
360 86 125 55 12 4.3 13.0 35 2.5 6.5 32 1.1
330 86 130 45 15 5.0 15.0 65 2.8 1.7 32 1.1
420 86 136 45 12 5.0 15.0 60 2 2.8 32 1.15
420 86 155 45 12 5.0 15.0 65 1.5 3.2 32 1.25
470 86 180 60 10 4.7 14.1 70 1.8 2.3 32 1.5
500 86 180 60 10 5.0 15.0 70 1.8 2.3 32 1.5
600 86 225 60 10 6.0 18.0 80 1.2 2.6 32 1.8
600 86 225 70 10 6.0 18.0 60 2.2 2.5 32 1.8
600 116 130 50 10 6.0 18.0 75 1.8 2.0 50 1.6
680 86 225 70 12 8.2 24.5 65 2.5 1.9 32 1.8
720 86 230 70 12 8.6 25.9 65 2.5 1.9 32 1.8
460 96 125 65 10 4.6 13.8 55 3.2 2.1 45 1.2
520 96 180 65 12 6.2 18.7 75 1.5 2.4 45 1.6
500 116 100 70 10 5.0 15.0 55 2.5 2.6 50 1.3
680 116 125 70 10 6.8 20.4 60 2.8 2.0 50 1.6
650 116 130 75 10 6.5 19.5 75 1.3 2.7 50 1.6
1000 116 180 75 12 12.0 36.0 75 1.5 2.4 50 2.4
1200 116 230 80 8 9.6 28.8 80 1.5 2.1 50 3
1200 116 230 75 12 14.4 43.2 105 0.9 2.0 50 3
1250 116 230 75 12 15.0 45.0 80 1.5 2.1 50 3
1300 116 230 75 12 15.6 46.8 80 1.5 2.1 50 3
1400 136 180 70 7 9.8 29.4 85 1.3 2.1 50 3.7
1700 136 230 70 5 8.5 25.5 100 1.4 1.4 50 4.2
1900 136 230 75 5 9.5 28.5 100 1.2 1.7 50 4.2
2800 136 335 80 5 14.0 42.0 120 0.8 1.7 50 6.1
3060 136 345 80 5 15.3 45.9 120 0.9 1.5 50 6.2
3200 136 335 80 5 16.0 48.0 120 0.85 1.6 50 6.1

 

Voltage   1200V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight（Kg）
170 86 75 50 15 2.6 7.7 45 4.5 2.2 32 0.8
420 76 145 50 15 6.3 18.9 30 12 1.9 32 0.85
330 86 130 45 15 5.0 15.0 65 2.8 1.7 32 1.1
420 86 136 45 12 5.0 15.0 65 2 2.4 32 1.15
420 86 155 45 12 5.0 15.0 70 1.5 2.7 32 1.25
420 116 95 55 10 4.2 12.6 80 1.4 2.2 50 1.2
450 86 160 55 12 5.4 16.2 70 2.9 1.4 32 1.3
470 86 180 60 12 5.6 16.9 70 2.8 1.5 32 1.5
470 86 225 60 12 5.6 16.9 70 2.8 1.5 32 1.8
550 86 145 55 12 6.6 19.8 40 11 1.1 32 1,2
600 86 225 60 10 6.0 18.0 80 1.2 2.6 32 1.8
600 86 225 70 10 6.0 18.0 60 2.2 2.5 32 1.8
600 116 130 50 10 6.0 18.0 75 1.8 2.0 50 1.6
680 86 225 70 12 8.2 24.5 65 2.5 1.9 32 1.8
500 116 100 65 10 5.0 15.0 55 2.6 2.5 50 1.2
680 116 125 65 10 6.8 20.4 50 2.8 2.9 50 1.55
650 116 130 65 10 6.5 19.5 80 1.8 1.7 50 1.6
1000 116 180 70 7 7.0 21.0 75 1.3 2.7 50 2.4
1200 116 230 70 7 8.4 25.2 75 1.3 2.7 50 3
1250 116 230 70 7 8.8 26.3 75 1.2 3.0 50 3
1400 136 180 75 7 9.8 29.4 85 1.1 2.5 50 3.7
1700 136 230 80 5 8.5 25.5 85 1 2.8 50 4.2
850 136 125 70 8 6.8 20.4 75 1.6 2.2 50 1.9
950 136 125 60 8 7.6 22.8 80 1.1 2.8 50 2.4
1200 116 180 80 8 9.6 28.8 80 1 3.1 50 2.4
1200 116 180 60 5 6.0 18.0 100 0.8 2.5 50 2.4
1500 136 180 70 5 7.5 22.5 100 0.9 2.2 50 3.7
2700 136 335 80 5 13.5 40.5 110 0.85 1.9 50 6.1

 

Voltage   1300V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
230 86 125 50 15 5.7 17.1 35 5 3.3 32 1.1
210 86 130 50 15 3.2 9.5 70 2 2.0 32 1.1
330 86 180 60 15 5.0 14.9 65 3 1.6 32 1.5
470 86 230 65 12 5.6 16.9 65 3.2 1.5 32 1.8
410 116 130 65 12 4.9 14.8 80 1.8 1.7 50 1.6
650 116 180 65 10 6.5 19.5 85 2 1.4 50 2.4
880 116 230 80 10 8.8 26.4 85 2.2 1.3 50 3
900 136 180 70 7 6.3 18.9 100 1.6 1.3 50 3.7
1200 136 230 80 7 8.4 25.2 105 1.5 1.2 50 4.2

 

Voltage   1500V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
160 86 125 50 15 5.7 17.1 35 5 3.3 32 1.1
160 86 130 50 15 2.4 7.2 60 3.5 1.6 32 1.1
240 86 180 55 15 3.6 10.8 65 5 0.9 32 1.5
320 86 230 55 12 3.8 11.5 60 3.5 1.6 32 1.8
300 116 130 55 12 3.6 10.8 75 2 1.8 50 1.6
470 116 180 60 10 4.7 14.1 75 2.8 1.3 50 2.4
650 116 230 60 10 6.5 19.5 80 2.8 1.1 50 3
660 136 180 60 7 4.6 13.9 100 1.8 1.1 50 3.7
900 136 230 60 6 5.4 16.2 105 1.2 1.5 50 4.2
1000 136 260 70 5 5.0 15.0 120 0.9 1.5 50 4.7

 

Voltage   1800V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
130 86 125 55 15 5.7 17.1 35 5 3.3 32 1.1
120 86 130 55 15 1.8 5.4 60 2.5 2.2 32 1.1
180 86 180 60 15 2.7 8.1 65 2 2.4 32 1.5
260 86 230 60 12 3.1 9.4 60 3 1.9 32 1.8
230 116 130 60 12 2.8 8.3 80 2 1.6 50 1.6
360 116 180 65 10 3.6 10.8 80 3.2 1.0 50 2.4
500 116 230 70 10 5.0 15.0 75 3 1.2 50 3
510 136 180 70 7 3.6 10.7 100 2 1.0 50 3.7
680 136 230 70 7 4.8 14.3 95 2 1.1 50 4.2

 

Voltage   2000V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
100 86 125 55 15 1.5 4.5 35 3.8 4.3 32 1.1
90 86 130 55 15 1.4 4.1 65 2.5 1.9 32 1.1
150 86 180 60 15 2.3 6.8 60 3.5 1.6 32 1.5
200 86 230 60 12 2.4 7.2 65 2 2.4 32 1.8
180 116 130 65 10 1.8 5.4 75 2.5 1.4 50 1.6
280 116 180 70 10 2.8 8.4 70 2 2.0 50 2.4
380 116 230 80 10 3.8 11.4 80 2 1.6 50 3
400 136 180 60 7 2.8 8.4 100 1.6 1.3 50 3.7
550 136 230 70 7 3.9 11.6 100 1.5 1.3 50 4.2
850 136 335 80 5 4.3 12.8 120 1.1 1.3 50 6.1

 

Voltage   2800V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
160 116 180 70 30 4.8 14.4 75 2.2 1.6 50 2.4
210 116 230 75 25 5.3 15.8 70 2.8 1.5 50 3
225 136 180 75 20 4.5 13.5 85 2 1.4 50 3.7
300 136 230 80 15 4.5 13.5 80 2.5 1.3 50 4.2

 

Voltage   4000V.DC
Cn(uF) φD H ESL(nH) dv/dt(V/μS) Ip(KA) Is(KA) Irms(A)50℃ ESR     (mΩ) @1KHz Rth(K/W) P(mm) weight
70 116 180 70 50 3.5 10.5 70 3.5 1.2 50 2.4
95 116 230 75 40 3.8 11.4 70 3.6 1.1 50 3
100 136 180 75 35 3.5 10.5 85 3 0.9 50 3.7
135 136 230 80 30 4.1 12.2 80 3.5 0.9 50 4.2

The demand for energy savings and for renewable sources urges the development of products such as electric vehicles, PV converters, wind power generators. These products require a DC to AC inverter to realize the operating system. Filter and DC-link capacitors are key passive components for the power system which provide with support the need of increasing power with high voltage and ripple currents.

As an emerging high-tech enterprise, CRE has a front-end R&D and manufacturing team for power electronic film capacitors, and established power electronics R&D engineering centers with internationally renowned research institutions. So far, CRE has more than 40 inventions and utility model patents and participated in the development of 10 national and industry standards, certified with ISO-9001, IATF16949, ISO14001/45001, and UL. We dedicate to develop more business partners for driving the power innovation.

CRE popular products:
①　DC-link capacitor
②　AC filter capacitor
③　Energy storage / Pulse capacitor
④　IGBT snubbed capacitor
⑤　Resonance capacitor
⑥　Water cooled capacitor

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