Tantalum Capacitors - Polymer

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T591 +125°C Polymer Automotive Capacitors

KEMET T591 Polymer Automotive Capacitors are designed to deliver higher stability under harsh conditions of humidity and temperature. The series features polymer cathode technology for ultra-low ESR and improved capacitance retention at high frequency. The solid capacitor construction results in long and stable lifetime performance as required by automotive applications. KEMET T591 Polymer Automotive Capacitors comply with nearly all of the requirements of the AEC-Q200 standard and are specially designed for DC/DC converters in automotive applications, where harsh conditions, such as high humidity and temperature, are a concern.

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Part #

Tantalum Capacitors - Polymer 35Volt 22uF 2912 20% ESR=65mOhms AEC-Q200

T591D226M035ATE065
KEMET
1: $3.72
2In Stock
500Expected 2026-12-17

Mfr. Part #
T591D226M035ATE065

Mouser Part #
80-T591D226M035ATE65

KEMET

Tantalum Capacitors - Polymer 35Volt 22uF 2912 20% ESR=65mOhms AEC-Q200

Learn More

Datasheet

2In Stock

500Expected 2026-12-17

Cut Tape

$3.72

$2.59

$2.19

$1.97

Reel

$1.71

MouseReel Available

Min.: 1
Mult.: 1

: 500

22 uF

35 VDC

SMD/SMT

20 %

2917

65 mOhms

77 uA

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=40mOhms AEC-Q200

T591D227M010ATE040
KEMET
1: $2.82
359In Stock

Mfr. Part #
T591D227M010ATE040

Mouser Part #
80-T591D227M010ATE40

KEMET

Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=40mOhms AEC-Q200

Learn More

Datasheet

359In Stock

Cut Tape

$2.82

$1.90

$1.54

$1.41

Reel

$1.22

MouseReel Available

Min.: 1
Mult.: 1

: 500

220 uF

10 VDC

SMD/SMT

20 %

2917

40 mOhms

220 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5VDC 220uF 7343 20% ESR=0.012Ohms

T591D227M2R5ATE012
KEMET
1: $3.10
485In Stock

Mfr. Part #
T591D227M2R5ATE012

Mouser Part #
80-T591D227M2R5ATE12

KEMET

Tantalum Capacitors - Polymer 2.5VDC 220uF 7343 20% ESR=0.012Ohms

Learn More

Datasheet

485In Stock

Cut Tape

$3.10

$2.10

$1.70

$1.58

Reel

$1.36

MouseReel Available

Min.: 1
Mult.: 1

: 500

220 uF

2.5 VDC

SMD/SMT

20 %

2917

100 Ohms

55 mA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 220uF 2917 20% ESR=25mOhms AEC-Q200

T591D227M006ATE025
KEMET
1: $3.10
5In Stock

Mfr. Part #
T591D227M006ATE025

Mouser Part #
80-T591D227M6ATE25

KEMET

Tantalum Capacitors - Polymer 6.3V 220uF 2917 20% ESR=25mOhms AEC-Q200

Learn More

Datasheet

5In Stock

Cut Tape

$3.10

$2.12

$1.71

$1.67

Reel

$1.58

MouseReel Available

Min.: 1
Mult.: 1

: 500

220 uF

6.3 VDC

SMD/SMT

20 %

2917

25 mOhms

138.6 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 25V 33uF 2917 20% ESR=60mOhms AEC-Q200

T591D336M025ATE060
KEMET
1: $3.43
557In Stock

Mfr. Part #
T591D336M025ATE060

Mouser Part #
80-T591D336M025ATE60

KEMET

Tantalum Capacitors - Polymer 25V 33uF 2917 20% ESR=60mOhms AEC-Q200

Learn More

Datasheet

557In Stock

Cut Tape

$3.43

$2.33

$1.90

$1.77

Reel

$1.76

MouseReel Available

Min.: 1
Mult.: 1

: 500

33 uF

25 VDC

SMD/SMT

20 %

2917

60 mOhms

82.5 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 35V 33uF 2917 20% ESR=65mOhms AEC-Q200

T591D336M035ATE065
KEMET
1: $3.83
437In Stock
2,000On Order

Mfr. Part #
T591D336M035ATE065

Mouser Part #
80-T591D336M035E065

KEMET

Tantalum Capacitors - Polymer 35V 33uF 2917 20% ESR=65mOhms AEC-Q200

Learn More

Datasheet

437In Stock

2,000On Order

Cut Tape

$3.83

$2.64

$2.16

$2.02

Reel

$1.76

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

33 uF

35 VDC

SMD/SMT

20 %

2917

65 mOhms

115.5 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=25mOhms AEC-Q200

T591D337M006ATE025
KEMET
1: $2.40
1,440In Stock

Mfr. Part #
T591D337M006ATE025

Mouser Part #
80-T591D337M006ATE25

KEMET

Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=25mOhms AEC-Q200

Learn More

Datasheet

1,440In Stock

Cut Tape

$2.40

$1.27

$1.17

Reel

$1.00

MouseReel Available

Min.: 1
Mult.: 1

: 500

330 uF

6.3 VDC

SMD/SMT

20 %

2917

25 mOhms

207.9 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=40mOhms AEC-Q200

T591D337M006ATE040
KEMET
1: $3.18
255In Stock

Mfr. Part #
T591D337M006ATE040

Mouser Part #
80-T591D337M006ATE40

KEMET

Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=40mOhms AEC-Q200

Learn More

Datasheet

255In Stock

Cut Tape

$3.18

$1.92

$1.61

Reel

$0.88

MouseReel Available

Min.: 1
Mult.: 1

: 500

330 uF

6.3 VDC

SMD/SMT

20 %

2917

40 mOhms

207.9 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5VDC 330uF 7343 20% ESR=0.009Ohms

T591D337M2R5ATE009
KEMET
1: $3.31
250In Stock

Mfr. Part #
T591D337M2R5ATE009

Mouser Part #
80-T591D337M2R5ATE09

KEMET

Tantalum Capacitors - Polymer 2.5VDC 330uF 7343 20% ESR=0.009Ohms

Learn More

Datasheet

250In Stock

Cut Tape

$3.31

$2.26

$1.84

$1.71

Reel

$1.47

MouseReel Available

Min.: 1
Mult.: 1

: 500

330 uF

2.5 VDC

SMD/SMT

20 %

2917

9 mOhms

82.5 mA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5VDC 330uF 7343 20% ESR=0.012Ohms

T591D337M2R5ATE012
KEMET
1: $3.11
400In Stock

Mfr. Part #
T591D337M2R5ATE012

Mouser Part #
80-T591D337M2R5ATE12

KEMET

Tantalum Capacitors - Polymer 2.5VDC 330uF 7343 20% ESR=0.012Ohms

Learn More

Datasheet

400In Stock

Cut Tape

$3.11

$2.10

$1.71

$1.58

Reel

$1.37

MouseReel Available

Min.: 1
Mult.: 1

: 500

330 uF

2.5 VDC

SMD/SMT

20 %

2917

100 Ohms

82.5 mA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5V 330uF 2917 20% ESR=18mOhms AEC-Q200

T591D337M2R5ATE018
KEMET
1: $3.38
487In Stock

Mfr. Part #
T591D337M2R5ATE018

Mouser Part #
80-T591D337M2R5ATE18

KEMET

Tantalum Capacitors - Polymer 2.5V 330uF 2917 20% ESR=18mOhms AEC-Q200

Learn More

Datasheet

487In Stock

Cut Tape

$3.38

$2.40

$2.04

$1.80

Reel

$1.37

MouseReel Available

Min.: 1
Mult.: 1

: 500

330 uF

2.5 VDC

SMD/SMT

20 %

2917

18 mOhms

82.5 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 75Vol 4.7uF 2912 20% ESR=200mOhms AEC-Q200

T591D475M075ATE200
KEMET
1: $6.22
388In Stock

Mfr. Part #
T591D475M075ATE200

Mouser Part #
80-T591D475M75ATE200

KEMET

Tantalum Capacitors - Polymer 75Vol 4.7uF 2912 20% ESR=200mOhms AEC-Q200

Learn More

Datasheet

388In Stock

Cut Tape

$6.22

$4.48

$3.89

$3.43

Reel

$3.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

4.7 uF

75 VDC

SMD/SMT

20 %

2917

200 mOhms

35.3 uA

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 16V 47uF 2917 20% ESR=70mOhms AEC-Q200

T591D476M016ATE070
KEMET
1: $3.51
269In Stock

Mfr. Part #
T591D476M016ATE070

Mouser Part #
80-T591D476M016ATE70

KEMET

Tantalum Capacitors - Polymer 16V 47uF 2917 20% ESR=70mOhms AEC-Q200

Learn More

Datasheet

269In Stock

Cut Tape

$3.51

$2.40

$1.97

$1.83

Reel

$1.58

$1.48

MouseReel Available

Min.: 1
Mult.: 1

: 500

47 uF

16 VDC

SMD/SMT

20 %

2917

70 mOhms

75.2 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 25Volt 47uF 2912 20% ESR=60mOhms AEC-Q200

T591D476M025ATE060
KEMET
1: $4.19
939In Stock

Mfr. Part #
T591D476M025ATE060

Mouser Part #
80-T591D476M025ATE60

KEMET

Tantalum Capacitors - Polymer 25Volt 47uF 2912 20% ESR=60mOhms AEC-Q200

Learn More

Datasheet

939In Stock

Cut Tape

$4.19

$2.91

$2.39

$2.23

Reel

$2.22

MouseReel Available

Min.: 1
Mult.: 1

: 500

47 uF

25 VDC

SMD/SMT

20 %

2917

60 mOhms

117.5 uA

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 20V 47uF AEC-Q200 20% ESR=50mOhms

T591D476M020ATE050
KEMET
1: $3.69
275In Stock

Mfr. Part #
T591D476M020ATE050

Mouser Part #
80-T591D476M20ATE050

KEMET

Tantalum Capacitors - Polymer 20V 47uF AEC-Q200 20% ESR=50mOhms

Learn More

Datasheet

275In Stock

Cut Tape

$3.69

$2.53

$2.07

Reel

$1.67

MouseReel Available

Min.: 1
Mult.: 1

: 500

47 uF

20 VDC

SMD/SMT

20 %

2917

50 mOhms

94 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5V 680uF 20% 7343-31 -55 /+125C ESR=6mOhms

T591D687M2R5ATE006
KEMET
1: $3.90
41In Stock
1,500On Order
New Product

Mfr. Part #
T591D687M2R5ATE006

Mouser Part #
80-T591D687M2R5ATE06

New Product

KEMET

Tantalum Capacitors - Polymer 2.5V 680uF 20% 7343-31 -55 /+125C ESR=6mOhms

Learn More

Datasheet

41In Stock

1,500On Order

Cut Tape

$3.90

$2.78

$2.39

$2.19

Reel

$1.87

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,000

: 500

680 uF

2.5 VDC

SMD/SMT

20 %

2917

6 mOhms

170 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5V 220uF 2917 20% ESR=9mOhms AEC-Q200

T591V227M2R5ATE009
KEMET
1: $4.44
12In Stock

Mfr. Part #
T591V227M2R5ATE009

Mouser Part #
80-T591V227M2R5E9

KEMET

Tantalum Capacitors - Polymer 2.5V 220uF 2917 20% ESR=9mOhms AEC-Q200

Learn More

Datasheet

12In Stock

Cut Tape

$4.44

$3.08

$2.55

$2.39

$2.10

Reel

$2.00

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

220 uF

2.5 VDC

SMD/SMT

20 %

2917

9 mOhms

55 uA

1.9 mm

- 55 C

+ 105 C

7343

V Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 35V 47uF 2917 20% ESR=75mOhms AEC-Q200

T591X476M035ATE075
KEMET
1: $7.13
447In Stock
500Expected 2027-02-11

Mfr. Part #
T591X476M035ATE075

Mouser Part #
80-T591X476M35E75

KEMET

Tantalum Capacitors - Polymer 35V 47uF 2917 20% ESR=75mOhms AEC-Q200

Learn More

Datasheet

447In Stock

500Expected 2027-02-11

Cut Tape

$7.13

$5.14

$4.35

$4.06

Reel

$3.67

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

47 uF

35 VDC

SMD/SMT

20 %

2917

75 mOhms

164.5 uA

4 mm

- 55 C

+ 125 C

7343

X Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 680uF 7343 20% ESR=25mOhms AEC-Q200

T591X687M006ATE025
KEMET
1: $4.23
302In Stock
1,000Expected 2027-02-18

Mfr. Part #
T591X687M006ATE025

Mouser Part #
80-T591X687M06ATE025

KEMET

Tantalum Capacitors - Polymer 6.3V 680uF 7343 20% ESR=25mOhms AEC-Q200

Learn More

Datasheet

302In Stock

1,000Expected 2027-02-18

Cut Tape

$4.23

$3.07

$2.65

$2.35

Reel

$2.06

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,000

: 500

680 uF

6 VDC

SMD/SMT

20 %

2917

25 mOhms

408 uA

4 mm

- 55 C

+ 125 C

7343

X Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5V 220uF 3528 20% ESR=9mOhms Harsh Env

T591B227M2R5ATE009
KEMET
1: $1.80
4,000Expected 2027-04-29
New Product

Mfr. Part #
T591B227M2R5ATE009

Mouser Part #
80-T591B227M2R5ATE09

New Product

KEMET

Tantalum Capacitors - Polymer 2.5V 220uF 3528 20% ESR=9mOhms Harsh Env

Learn More

Datasheet

4,000Expected 2027-04-29

Cut Tape

$1.80

$1.22

$0.888

$0.737

$0.685

Reel

$0.582

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

220 uF

2.5 VDC

SMD/SMT

20 %

1311

9 mOhms

55 uA

1.9 mm

- 55 C

+ 125 C

3528

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5V 220uF 3528 20% ESR=12mOhms Harsh Env

T591B227M2R5ATE012
KEMET
1: $1.80
4,000Expected 2027-04-29
New Product

Mfr. Part #
T591B227M2R5ATE012

Mouser Part #
80-T591B227M2R5ATE12

New Product

KEMET

Tantalum Capacitors - Polymer 2.5V 220uF 3528 20% ESR=12mOhms Harsh Env

Learn More

Datasheet

4,000Expected 2027-04-29

Cut Tape

$1.80

$1.22

$0.888

$0.737

$0.685

Reel

$0.582

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

220 uF

2.5 VDC

SMD/SMT

20 %

1311

12 mOhms

55 uA

1.9 mm

- 55 C

+ 125 C

3528

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5V 330uF 3528 20% ESR=9mOhms Harsh Env

T591B337M2R5ATE009
KEMET
1: $1.93
4,000Expected 2027-04-22
New Product

Mfr. Part #
T591B337M2R5ATE009

Mouser Part #
80-T591B337M2R5ATE09

New Product

KEMET

Tantalum Capacitors - Polymer 2.5V 330uF 3528 20% ESR=9mOhms Harsh Env

Learn More

Datasheet

4,000Expected 2027-04-22

Cut Tape

$1.93

$1.35

$0.994

$0.831

Reel

$0.714

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

330 uF

2.5 VDC

SMD/SMT

20 %

1311

9 mOhms

82.5 uA

1.9 mm

- 55 C

+ 125 C

3528

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 2.5V 330uF 3528 20% ESR=12mOhms Harsh Env

T591B337M2R5ATE012
KEMET
1: $1.93
4,000Expected 2027-04-29
New Product

Mfr. Part #
T591B337M2R5ATE012

Mouser Part #
80-T591B337M2R5ATE12

New Product

KEMET

Tantalum Capacitors - Polymer 2.5V 330uF 3528 20% ESR=12mOhms Harsh Env

Learn More

Datasheet

4,000Expected 2027-04-29

Cut Tape

$1.93

$1.35

$0.994

$0.831

Reel

$0.714

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

330 uF

2.5 VDC

SMD/SMT

20 %

1311

12 mOhms

82.5 uA

1.9 mm

- 55 C

+ 125 C

3528

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 16V 150uF 2917 20% ESR=65mOhms AEC-Q200

T591D157M016ATE065
KEMET
1: $3.28
2,000Expected 2026-11-17

Mfr. Part #
T591D157M016ATE065

Mouser Part #
80-T591D157M16ATE65

KEMET

Tantalum Capacitors - Polymer 16V 150uF 2917 20% ESR=65mOhms AEC-Q200

Learn More

Datasheet

2,000Expected 2026-11-17

Cut Tape

$3.28

$2.25

$1.83

$1.70

Reel

$1.45

MouseReel Available

Min.: 1
Mult.: 1

: 500

150 uF

16 VDC

SMD/SMT

20 %

2917

65 mOhms

240 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=25mOhms AEC-Q200

T591D227M010ATE025
KEMET
1: $3.17
3,500Expected 2026-11-17

Mfr. Part #
T591D227M010ATE025

Mouser Part #
80-T591D227M010ATE25

KEMET

Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=25mOhms AEC-Q200

Learn More

Datasheet

3,500Expected 2026-11-17

Cut Tape

$3.17

$2.16

$1.99

$1.74

Reel

$1.51

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,000

: 500

220 uF

10 VDC

SMD/SMT

20 %

2917

25 mOhms

220 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

T591 +125°C Polymer Automotive Capacitors

Mouser Electronics®

Company

Resources

Support

6 mOhms
9 mOhms
12 mOhms
15 mOhms
18 mOhms
25 mOhms
35 mOhms
40 mOhms
45 mOhms
50 mOhms
55 mOhms
60 mOhms
65 mOhms
70 mOhms
75 mOhms
80 mOhms
90 mOhms
120 mOhms
150 mOhms
200 mOhms

7.7 uA
11 uA
11.6 uA
13.9 uA
16.5 uA
18.8 uA
20.8 uA
22 uA
29.6 uA
33 uA
35 uA
35.3 uA
40 uA
42.8 uA
47 uA
50 uA
55 uA
60 uA
63 uA
75 uA