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 life time 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 (high humidity and temperature) are a concern.

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Part #

Tantalum Capacitors - Polymer 10V 47uF 1311 20% ESR=70mOhms AEC-Q200

T591B476M010ATE070
KEMET
1: $1.95
2,530In Stock
2,000Expected 2026-05-26

Mfr. Part #
T591B476M010ATE070

Mouser Part #
80-T591B476M010E70

KEMET

Tantalum Capacitors - Polymer 10V 47uF 1311 20% ESR=70mOhms AEC-Q200

Learn More

Datasheet

2,530In Stock

2,000Expected 2026-05-26

Cut Tape

$1.95

$1.00

$0.921

$0.781

$0.738

Reel

$0.736

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

47 uF

10 VDC

SMD/SMT

20 %

1311

70 mOhms

47 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200

T591D106M035ATE120
KEMET
1: $3.35
425In Stock

Mfr. Part #
T591D106M035ATE120

Mouser Part #
80-T591D106M35ATE120

KEMET

Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200

Learn More

Datasheet

425In Stock

Cut Tape

$3.35

$2.28

$1.86

$1.72

Reel

$1.49

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

10 uF

35 VDC

SMD/SMT

20 %

2917

120 mOhms

35 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=25mOhms AEC-Q200

T591D107M010ATE025
KEMET
1: $2.56
25In Stock
2,000On Order

Mfr. Part #
T591D107M010ATE025

Mouser Part #
80-T591D107M010E25

KEMET

Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=25mOhms AEC-Q200

Learn More

Datasheet

25In Stock

2,000On Order

Cut Tape

$2.56

$1.60

$1.28

Reel

$1.01

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

100 uF

10 VDC

SMD/SMT

20 %

2917

25 mOhms

100 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=40mOhms AEC-Q200

T591D107M010ATE040
KEMET
1: $2.25
827In Stock
500Expected 2026-07-30

Mfr. Part #
T591D107M010ATE040

Mouser Part #
80-T591D107M010E40

KEMET

Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=40mOhms AEC-Q200

Learn More

Datasheet

827In Stock

500Expected 2026-07-30

Cut Tape

$2.25

$1.17

$1.08

Reel

$1.02

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

100 uF

10 VDC

SMD/SMT

20 %

2917

40 mOhms

100 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=80mOhms AEC-Q200

T591D107M010ATE080
KEMET
1: $2.05
400In Stock

Mfr. Part #
T591D107M010ATE080

Mouser Part #
80-T591D107M010E80

KEMET

Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=80mOhms AEC-Q200

Learn More

Datasheet

400In Stock

Cut Tape

$2.05

$1.06

$0.975

Reel

$0.828

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

100 uF

10 VDC

SMD/SMT

20 %

2917

80 mOhms

100 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 16V 100uF 2917 20% ESR=50mOhms AEC-Q200

T591D107M016ATE050
KEMET
1: $3.57
239In Stock
500Expected 2026-04-07

Mfr. Part #
T591D107M016ATE050

Mouser Part #
80-T591D107M016ATE50

KEMET

Tantalum Capacitors - Polymer 16V 100uF 2917 20% ESR=50mOhms AEC-Q200

Learn More

Datasheet

239In Stock

500Expected 2026-04-07

Cut Tape

$3.57

$2.43

$1.98

$1.86

Reel

$1.60

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

100 uF

16 VDC

SMD/SMT

20 %

2917

50 mOhms

160 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=45mOhms

T591D157M010ATE045
KEMET
1: $2.70
210In Stock

Mfr. Part #
T591D157M010ATE045

Mouser Part #
80-T591D157M10ATE045

KEMET

Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=45mOhms

Learn More

Datasheet

210In Stock

Cut Tape

$2.70

$1.81

$1.45

$1.34

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

150 uF

10 VDC

SMD/SMT

20 %

2917

45 mOhms

150 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 25V 22uF 2917 20% ESR=60mOhms AEC-Q200

T591D226M025ATE060
KEMET
1: $3.27
435In Stock

Mfr. Part #
T591D226M025ATE060

Mouser Part #
80-T591D226M025ATE60

KEMET

Tantalum Capacitors - Polymer 25V 22uF 2917 20% ESR=60mOhms AEC-Q200

Learn More

Datasheet

435In Stock

Cut Tape

$3.27

$2.22

$1.81

$1.67

Reel

$1.45

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

22 uF

25 VDC

SMD/SMT

20 %

2917

60 mOhms

55 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

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

T591D226M035ATE065
KEMET
1: $3.61
54In Stock

Mfr. Part #
T591D226M035ATE065

Mouser Part #
80-T591D226M035ATE65

KEMET

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

Learn More

Datasheet

54In Stock

Cut Tape

$3.61

$2.46

$2.02

$1.88

Reel

$1.63

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $2.90
397In Stock

Mfr. Part #
T591D227M010ATE040

Mouser Part #
80-T591D227M010ATE40

KEMET

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

Learn More

Datasheet

397In Stock

Cut Tape

$2.90

$1.95

$1.57

$1.45

Reel

$1.25

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 6.3V 220uF 2917 20% ESR=25mOhms AEC-Q200

T591D227M006ATE025
KEMET
1: $3.33
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

$3.33

$2.28

$1.84

$1.72

Reel

$1.49

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $3.80
113In Stock
500Expected 2026-07-07

Mfr. Part #
T591D336M025ATE060

Mouser Part #
80-T591D336M025ATE60

KEMET

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

Learn More

Datasheet

113In Stock

500Expected 2026-07-07

Cut Tape

$3.80

$2.70

$2.31

$2.03

Reel

$1.57

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 6.3V 330uF 2917 20% ESR=25mOhms AEC-Q200

T591D337M006ATE025
KEMET
1: $2.40
26In Stock
2,000On Order

Mfr. Part #
T591D337M006ATE025

Mouser Part #
80-T591D337M006ATE25

KEMET

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

Learn More

Datasheet

26In Stock

2,000On Order

Cut Tape

$2.40

$1.50

$1.20

Reel

$0.939

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $2.46
380In Stock

Mfr. Part #
T591D337M006ATE040

Mouser Part #
80-T591D337M006ATE40

KEMET

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

Learn More

Datasheet

380In Stock

Cut Tape

$2.46

$1.72

$1.26

Reel

$0.947

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 2.5V 330uF 2917 20% ESR=18mOhms AEC-Q200

T591D337M2R5ATE018
KEMET
1: $3.46
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

$3.46

$2.43

$2.09

$1.83

Reel

$1.41

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $5.50
398In Stock

Mfr. Part #
T591D475M075ATE200

Mouser Part #
80-T591D475M75ATE200

KEMET

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

Learn More

Datasheet

398In Stock

Cut Tape

$5.50

$3.89

$3.24

$3.04

Reel

$2.68

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $3.61
435In Stock

Mfr. Part #
T591D476M016ATE070

Mouser Part #
80-T591D476M016ATE70

KEMET

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

Learn More

Datasheet

435In Stock

Cut Tape

$3.61

$2.46

$2.02

$1.88

Reel

$1.63

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 20V 47uF AEC-Q200 20% ESR=50mOhms

T591D476M020ATE050
KEMET
1: $3.77
366In Stock

Mfr. Part #
T591D476M020ATE050

Mouser Part #
80-T591D476M20ATE050

KEMET

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

Learn More

Datasheet

366In Stock

Cut Tape

$3.77

$2.59

$2.12

Reel

$1.72

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 470uF 2870 20% ESR=6mOhms AEC-Q200

T591D477M2R5ATE006
KEMET
1: $3.15
450In Stock
500Expected 2026-09-22

Mfr. Part #
T591D477M2R5ATE006

Mouser Part #
80-T591D477M2R5ATE06

KEMET

Tantalum Capacitors - Polymer 2.5V 470uF 2870 20% ESR=6mOhms AEC-Q200

Learn More

Datasheet

450In Stock

500Expected 2026-09-22

Cut Tape

$3.15

$2.14

$1.74

$1.61

Reel

$1.39

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

470 uF

2.5 VDC

SMD/SMT

20 %

2917

6 mOhms

117.5 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 20V 68uF 2917 20% ESR=50mOhms AEC-Q200

T591D686M020ATE050
KEMET
1: $3.35
85In Stock
1,000Expected 2026-06-02

Mfr. Part #
T591D686M020ATE050

Mouser Part #
80-T591D686M020ATE50

KEMET

Tantalum Capacitors - Polymer 20V 68uF 2917 20% ESR=50mOhms AEC-Q200

Learn More

Datasheet

85In Stock

1,000Expected 2026-06-02

Cut Tape

$3.35

$2.40

$1.97

$1.83

Reel

$1.58

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

68 uF

20 VDC

SMD/SMT

20 %

2917

50 mOhms

136 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200

T591V106M035ATE120
KEMET
1: $3.55
339In Stock

Mfr. Part #
T591V106M035ATE120

Mouser Part #
80-T591V106M35ATE120

KEMET

Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200

Learn More

Datasheet

339In Stock

Cut Tape

$3.55

$2.51

$2.15

$1.88

Reel

$1.44

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

10 uF

35 VDC

SMD/SMT

20 %

2917

120 mOhms

35 uA

1.9 mm

- 55 C

+ 125 C

7343

V Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

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

T591V227M2R5ATE009
KEMET
1: $4.54
22In Stock

Mfr. Part #
T591V227M2R5ATE009

Mouser Part #
80-T591V227M2R5E9

KEMET

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

Learn More

Datasheet

22In Stock

Cut Tape

$4.54

$3.16

$2.62

$2.45

$2.15

Reel

$2.05

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $6.84
222In Stock
500Expected 2026-06-30

Mfr. Part #
T591X476M035ATE075

Mouser Part #
80-T591X476M35E75

KEMET

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

Learn More

Datasheet

222In Stock

500Expected 2026-06-30

Cut Tape

$6.84

$4.90

$4.12

$3.89

Reel

$3.47

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $4.14
100In Stock
500Expected 2026-10-13

Mfr. Part #
T591X687M006ATE025

Mouser Part #
80-T591X687M06ATE025

KEMET

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

Learn More

Datasheet

100In Stock

500Expected 2026-10-13

Cut Tape

$4.14

$2.90

$2.45

$2.20

Reel

$1.91

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 50V 10uF 2917 20% ESR=90mOhms AEC-Q200

T591D106M050ATE090
KEMET
1: $3.75
4,955On Order

Mfr. Part #
T591D106M050ATE090

Mouser Part #
80-T591D106M050ATE90

KEMET

Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=90mOhms AEC-Q200

Learn More

Datasheet

4,955On Order

Cut Tape

$3.75

$2.57

$2.11

$1.95

Reel

$1.71

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

10 uF

50 VDC

SMD/SMT

20 %

2917

90 mOhms

50 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