.hide-partial { max-height: none; } .show-more { display: none; }

KYOCERA AVX MLCCs

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of MLCCs

List Images

Results: 45.805

Applied Filters:

Manufacturer = KYOCERA AVX

Termination Style

Capacitance

Voltage Rating DC

Dielectric

Tolerance

Case Code - in

Case Code - mm

Minimum Operating Temperature

Maximum Operating Temperature

Product

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V .47uF X7R 1206 1 0% AEC-Q200 FLEXITER

KAF31ER71H474KL
KYOCERA AVX
1: 0,232 €
21.889In Stock

Mfr. Part No.
KAF31ER71H474KL

Mouser Part No
581-KAF31ER71H474KL

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V .47uF X7R 1206 1 0% AEC-Q200 FLEXITER

Learn More

Datasheet

21.889In Stock

Cut Tape

0,232 €

0,149 €

0,085 €

0,068 €

Reel

0,047 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10.000

SMD/SMT

0.47 uF

50 VDC

X7R

10 %

1206

3216

- 55 C

+ 125 C

Automotive MLCCs

AEC-Q200

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 25V 10 000pF X7R 040 2 10% AEC-Q200

KAM05AR71E103KH
KYOCERA AVX
1: 0,12 €
17.408In Stock
20.000Expected 04/05/2026

Mfr. Part No.
KAM05AR71E103KH

Mouser Part No
581-KAM05AR71E103KH

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 25V 10 000pF X7R 040 2 10% AEC-Q200

Learn More

Datasheet

17.408In Stock

20.000Expected 04/05/2026

Cut Tape

0,12 €

0,051 €

0,03 €

0,023 €

Reel

0,013 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10.000

SMD/SMT

0.01 uF

25 VDC

X7R

10 %

0402

1005

- 55 C

+ 125 C

Automotive MLCCs

AEC-Q200

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 4700pF X7R 0402 10% AEC-Q200

KAM05AR71H472KH
KYOCERA AVX
1: 0,138 €
35.940In Stock

Mfr. Part No.
KAM05AR71H472KH

Mouser Part No
581-KAM05AR71H472KH

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 4700pF X7R 0402 10% AEC-Q200

Learn More

Datasheet

35.940In Stock

Cut Tape

0,138 €

0,057 €

0,033 €

0,026 €

View

Reel

0,011 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10.000

SMD/SMT

4700 pF

50 VDC

X7R

10 %

0402

1005

- 55 C

+ 125 C

Automotive MLCCs

AEC-Q200

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V .1uF X7R 0603 10 % AEC-Q200

KAM15AR71C104KM
KYOCERA AVX
1: 0,095 €
44.096In Stock

Mfr. Part No.
KAM15AR71C104KM

Mouser Part No
581-KAM15AR71C104KM

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V .1uF X7R 0603 10 % AEC-Q200

Learn More

Datasheet

44.096In Stock

Cut Tape

0,095 €

0,046 €

0,027 €

0,021 €

View

Reel

0,012 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15.000

SMD/SMT

0.1 uF

16 VDC

X7R

10 %

0603

1608

- 55 C

+ 125 C

Automotive MLCCs

AEC-Q200

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 10 000pF X8R 080 5 10% AEC-Q200

KAM21BR81H103KT
KYOCERA AVX
1: 0,189 €
15.192In Stock

Mfr. Part No.
KAM21BR81H103KT

Mouser Part No
581-KAM21BR81H103KT

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 10 000pF X8R 080 5 10% AEC-Q200

Learn More

Datasheet

15.192In Stock

Cut Tape

0,189 €

0,114 €

0,068 €

0,055 €

Reel

0,04 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

SMD/SMT

0.01 uF

50 VDC

X8R

10 %

0805

2012

- 55 C

+ 150 C

Automotive MLCCs

AEC-Q200

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 10 000pF X8R 120 6 10% AEC-Q200

KAM31BR81H103KT
KYOCERA AVX
1: 0,267 €
10.990In Stock

Mfr. Part No.
KAM31BR81H103KT

Mouser Part No
581-KAM31BR81H103KT

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 10 000pF X8R 120 6 10% AEC-Q200

Learn More

Datasheet

10.990In Stock

Cut Tape

0,267 €

0,174 €

0,099 €

0,077 €

0,071 €

Reel

0,065 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

SMD/SMT

0.01 uF

50 VDC

X8R

10 %

1206

3216

- 55 C

+ 150 C

Automotive MLCCs

AEC-Q200

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT .1UF 50V 5% 0603

KGF15AR71H104JT
KYOCERA AVX
1: 0,611 €
3.725In Stock

Mfr. Part No.
KGF15AR71H104JT

Mouser Part No
581-KGF15AR71H104JT

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT .1UF 50V 5% 0603

Learn More

Datasheet

3.725In Stock

Cut Tape

0,611 €

0,408 €

0,278 €

0,227 €

Reel

0,175 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

SMD/SMT

0.1 uF

50 VDC

X7R

5 %

0603

1608

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 4700PF 50V 10% 0805

KGF21BR71H472KT
KYOCERA AVX
1: 0,284 €
3.637In Stock
4.000Expected 28/04/2026

Mfr. Part No.
KGF21BR71H472KT

Mouser Part No
581-KGF21BR71H472KT

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 4700PF 50V 10% 0805

Learn More

Datasheet

3.637In Stock

4.000Expected 28/04/2026

Cut Tape

0,284 €

0,163 €

0,099 €

0,079 €

View

Reel

0,058 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

SMD/SMT

4700 pF

50 VDC

X7R

10 %

0805

2012

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 1.0UF 16V 10% 0805

KGF21KR71C105KU
KYOCERA AVX
1: 0,843 €
1.939In Stock

Mfr. Part No.
KGF21KR71C105KU

Mouser Part No
581-KGF21KR71C105KU

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 1.0UF 16V 10% 0805

Learn More

Datasheet

1.939In Stock

Cut Tape

0,843 €

0,531 €

0,375 €

0,341 €

0,327 €

Reel

0,277 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.000

SMD/SMT

1 uF

16 VDC

X7R

10 %

0805

2012

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT R102 HIGH CV

KGF31GR72A105MU
KYOCERA AVX
1: 0,456 €
1.882In Stock

Mfr. Part No.
KGF31GR72A105MU

Mouser Part No
581-KGF31GR72A105MU

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT R102 HIGH CV

Learn More

Datasheet

1.882In Stock

Cut Tape

0,456 €

0,299 €

0,187 €

0,151 €

Reel

0,12 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.000

SMD/SMT

1 uF

100 VDC

X7R

20 %

1206

3216

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 680pF X5R 0101 1 0%

KGM02AR51C681KH
KYOCERA AVX
1: 0,086 €
39.240In Stock

Mfr. Part No.
KGM02AR51C681KH

Mouser Part No
581-KGM02AR51C681KH

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 680pF X5R 0101 1 0%

Learn More

Datasheet

39.240In Stock

Cut Tape

0,086 €

0,031 €

0,018 €

0,014 €

View

Reel

0,008 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 20.000

SMD/SMT

680 pF

16 VDC

X5R

10 %

0101

0402

- 55 C

+ 85 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 25V 120pF X7R 0201 10%

KGM03AR71E121KH
KYOCERA AVX
1: 0,155 €
81.539In Stock
New At Mouser

Mfr. Part No.
KGM03AR71E121KH

Mouser Part No
581-KGM03AR71E121KH

New At Mouser

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 25V 120pF X7R 0201 10%

Learn More

Datasheet

81.539In Stock

Cut Tape

0,155 €

0,022 €

0,013 €

Reel

0,012 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15.000

SMD/SMT

120 pF

25 VDC

X7R

10 %

0201

0603

- 55 C

+ 125 C

Ceramic Capacitors

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 25V 0.1uF X6S 0201 10%

KGM03AS61E104KH
KYOCERA AVX
1: 0,172 €
26.584In Stock
New At Mouser

Mfr. Part No.
KGM03AS61E104KH

Mouser Part No
581-KGM03AS61E104KH

New At Mouser

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 25V 0.1uF X6S 0201 10%

Learn More

Datasheet

26.584In Stock

Cut Tape

0,172 €

0,114 €

0,104 €

Reel

0,104 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15.000

SMD/SMT

0.1 uF

25 VDC

X6S

10 %

0201

0603

- 55 C

+ 105 C

Ceramic Capacitors

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 6.3V 1uF X5R 0201 10 %

KGM03BR50J105KH
KYOCERA AVX
1: 0,103 €
37.186In Stock

Mfr. Part No.
KGM03BR50J105KH

Mouser Part No
581-KGM03BR50J105KH

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 6.3V 1uF X5R 0201 10 %

Learn More

Datasheet

37.186In Stock

Cut Tape

0,103 €

0,066 €

0,05 €

Reel

0,05 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15.000

SMD/SMT

1 uF

6.3 VDC

X5R

10 %

0201

0603

- 55 C

+ 85 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 470pF C0G 0402 1 %

KGM05ACG1H471FH
KYOCERA AVX
1: 0,585 €
10.253In Stock

Mfr. Part No.
KGM05ACG1H471FH

Mouser Part No
581-KGM05ACG1H471FH

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V 470pF C0G 0402 1 %

Learn More

Datasheet

10.253In Stock

Cut Tape

0,585 €

0,385 €

0,241 €

0,194 €

View

Reel

0,139 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10.000

SMD/SMT

470 pF

50 VDC

C0G (NP0)

1 %

0402

1005

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 10V 1uF X5R 0402 10%

KGM05AR51A105KN
KYOCERA AVX
1: 0,138 €
73.179In Stock

Mfr. Part No.
KGM05AR51A105KN

Mouser Part No
581-KGM05AR51A105KN

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 10V 1uF X5R 0402 10%

Learn More

Datasheet

73.179In Stock

Cut Tape

0,138 €

0,059 €

0,044 €

0,034 €

View

Reel

0,015 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 50.000

SMD/SMT

1 uF

10 VDC

X5R

10 %

0402

1005

- 55 C

+ 85 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 6.3V 2.2uF X5R 0603 20%

KGM15BR50J225MT
KYOCERA AVX
1: 0,155 €
12.671In Stock

Mfr. Part No.
KGM15BR50J225MT

Mouser Part No
581-KGM15BR50J225MT

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 6.3V 2.2uF X5R 0603 20%

Learn More

Datasheet

12.671In Stock

Cut Tape

0,155 €

0,101 €

0,052 €

0,042 €

Reel

0,031 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

SMD/SMT

2.2 uF

6.3 VDC

X5R

20 %

0603

1608

- 55 C

+ 85 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 2.2uF X5R 0603 1 0%

KGM15BR51C225KT
KYOCERA AVX
1: 0,284 €
7.739In Stock
4.000Expected 16/02/2026

Mfr. Part No.
KGM15BR51C225KT

Mouser Part No
581-KGM15BR51C225KT

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 2.2uF X5R 0603 1 0%

Learn More

Datasheet

7.739In Stock

4.000Expected 16/02/2026

Cut Tape

0,284 €

0,187 €

0,106 €

0,082 €

Reel

0,061 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

SMD/SMT

2.2 uF

16 VDC

X5R

10 %

0603

1608

- 55 C

+ 85 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 3300pF C0G 0805 5%

KGM21ACG1C332JU
KYOCERA AVX
1: 0,353 €
7.769In Stock

Mfr. Part No.
KGM21ACG1C332JU

Mouser Part No
581-KGM21ACG1C332JU

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 3300pF C0G 0805 5%

Learn More

Datasheet

7.769In Stock

Cut Tape

0,353 €

0,203 €

0,123 €

0,099 €

Reel

0,082 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

SMD/SMT

3300 pF

16 VDC

C0G (NP0)

5 %

0805

2012

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 4.7uF X7R 0805 2 0%

KGM21AR71C475MU
KYOCERA AVX
1: 0,439 €
2.517In Stock

Mfr. Part No.
KGM21AR71C475MU

Mouser Part No
581-KGM21AR71C475MU

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 4.7uF X7R 0805 2 0%

Learn More

Datasheet

2.517In Stock

Cut Tape

0,439 €

0,289 €

0,174 €

0,157 €

Reel

0,133 €

0,131 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

SMD/SMT

4.7 uF

16 VDC

X7R

20 %

0805

2012

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 100V 220pF C0G 0805 5%

KGM21BCG2A221JM
KYOCERA AVX
1: 0,181 €
26.273In Stock

Mfr. Part No.
KGM21BCG2A221JM

Mouser Part No
581-KGM21BCG2A221JM

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 100V 220pF C0G 0805 5%

Learn More

Datasheet

26.273In Stock

Cut Tape

0,181 €

0,106 €

0,064 €

0,052 €

View

Reel

0,034 €

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15.000

SMD/SMT

220 pF

100 VDC

C0G (NP0)

5 %

0805

2012

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 500V 220pF C0G 1206 10%

KGM31BCG2H221KT
KYOCERA AVX
1: 0,361 €
3.883In Stock

Mfr. Part No.
KGM31BCG2H221KT

Mouser Part No
581-KGM31BCG2H221KT

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 500V 220pF C0G 1206 10%

Learn More

Datasheet

3.883In Stock

Cut Tape

0,361 €

0,235 €

0,144 €

0,117 €

Reel

0,086 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

SMD/SMT

220 pF

500 VDC

C0G (NP0)

10 %

1206

3216

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V .1uF C0G 1206 5%

KGM31HCG1H104JU
KYOCERA AVX
1: 2,11 €
1.231In Stock

Mfr. Part No.
KGM31HCG1H104JU

Mouser Part No
581-KGM31HCG1H104JU

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 50V .1uF C0G 1206 5%

Learn More

Datasheet

1.231In Stock

Cut Tape

2,11 €

1,50 €

1,13 €

0,998 €

Reel

0,842 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.000

SMD/SMT

0.1 uF

50 VDC

C0G (NP0)

5 %

1206

3216

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 10V 10uF X5R 1206 10 %

KGM31HR51A106KU
KYOCERA AVX
1: 0,516 €
1.774In Stock
2.000Expected 21/04/2026

Mfr. Part No.
KGM31HR51A106KU

Mouser Part No
581-KGM31HR51A106KU

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 10V 10uF X5R 1206 10 %

Learn More

Datasheet

1.774In Stock

2.000Expected 21/04/2026

Cut Tape

0,516 €

0,353 €

0,24 €

0,196 €

Reel

0,164 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.000

SMD/SMT

10 uF

10 VDC

X5R

10 %

1206

3216

- 55 C

+ 85 C

General Type MLCCs

Reel, Cut Tape, MouseReel

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 2.2uF X7R 1206 1 0%

KGM31HR71C225KU
KYOCERA AVX
1: 0,292 €
6.954In Stock

Mfr. Part No.
KGM31HR71C225KU

Mouser Part No
581-KGM31HR71C225KU

KYOCERA AVX

Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 2.2uF X7R 1206 1 0%

Learn More

Datasheet

6.954In Stock

Cut Tape

0,292 €

0,188 €

0,12 €

0,096 €

Reel

0,081 €

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

SMD/SMT

2.2 uF

16 VDC

X7R

10 %

1206

3216

- 55 C

+ 125 C

General Type MLCCs

Reel, Cut Tape, MouseReel

KYOCERA AVX MLCCs

Types of MLCCs

Customer Service Office

Company

Resources

Support

0.027 pF
0.033 pF
0.1 pF
0.2 pF
0.3 pF
0.4 pF
0.47 pF
0.5 pF
0.51 pF
0.56 pF
0.6 pF
0.68 pF
0.7 pF
0.75 pF
0.8 pF
0.82 pF
0.9 pF
1 pF
1.1 pF
1.2 pF

2.5 VDC
4 VDC
6.3 VDC
10 VDC
16 VDC
25 VDC
35 VDC
50 VDC
100 VDC
150 VDC
200 VDC
250 VDC
300 VDC
350 VDC
400 VDC
500 VDC
600 VDC
600 VDC/630 VDC
630 VDC
700 VDC

BG
BP
BR
BX
C0G (NP0)
CG
CH
CK
CX
N1500
VHT
X5R
X6S
X6T
X7R
X7S
X7T
X8G
X8L
X8R

0101
0201
0306 (Reversed)
0402
0505
0508 (Reversed)
0511
0603
0612 (Reversed)
0709 (Reversed)
0805
01005
1111
1206
1210
1805
1808
1812
1825 (Reversed)
2012

0303
0402
0603
0805
0816 (Reversed)
1005
1220 (Reversed)
1414
1428
1608
1632 (Reversed)
1819
1823 (Reversed)
2012
2828
3216
3225
4512
4520
4532

Automotive MLCCs
Ceramic Capacitor
Ceramic Capacitors
Conformally Coated Radial Leaded MLCCs
General Purpose MLCCs
General Type MLCCs
High Reliability MLCCs
High Voltage MLCCs
MIL-PRF MLCCs
MLCC
MLC Chips
MLCCs
Multilayer Ceramic Capacitors
Reverse Geometry Type MLCCs
RF/Microwave Capacitors
RF/Microwave Multilayer Capacitors (MLC)
RF Microwave / High Q
RF Microwave SLCs
SMPS Rated MLCCs
SMPS Stacked MLC Capacitors