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

T591D157M016ATE065
KEMET
1: $3.16
1,500Expected 2026-04-30

Mfr. Part #
T591D157M016ATE065

Mouser Part #
80-T591D157M16ATE65

KEMET

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

Learn More

Datasheet

1,500Expected 2026-04-30

Cut Tape

$3.16

$2.14

$1.74

$1.61

Reel

$1.39

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 4VDC 100uF 1380 20% ESR=45mOhms AEC-Q200

T591B107M004ATE045
KEMET
2,000: $0.656
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B107M004ATE045

Mouser Part #
80-T591B107M004ATE45

KEMET

Tantalum Capacitors - Polymer 4VDC 100uF 1380 20% ESR=45mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.656

$0.643

Min.: 2,000
Mult.: 2,000

Reel: 2,000

100 uF

4 VDC

SMD/SMT

20 %

1311

45 mOhms

40 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel

Tantalum Capacitors - Polymer 4VDC 100uF 1380 20% ESR=55mOhms AEC-Q200

T591B107M004ATE055
KEMET
2,000: $0.656
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B107M004ATE055

Mouser Part #
80-T591B107M004ATE55

KEMET

Tantalum Capacitors - Polymer 4VDC 100uF 1380 20% ESR=55mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.656

$0.643

Min.: 2,000
Mult.: 2,000

Reel: 2,000

100 uF

4 VDC

SMD/SMT

20 %

1311

55 mOhms

40 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel

Tantalum Capacitors - Polymer 6.3V 100uF 1380 20% ESR=55mOhms AEC-Q200

T591B107M006ATE055
KEMET
2,000: $0.656
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B107M006ATE055

Mouser Part #
80-T591B107M006ATE55

KEMET

Tantalum Capacitors - Polymer 6.3V 100uF 1380 20% ESR=55mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.656

$0.643

Min.: 2,000
Mult.: 2,000

Reel: 2,000

100 uF

6.3 VDC

SMD/SMT

20 %

1311

55 mOhms

63 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel

Tantalum Capacitors - Polymer 6.3V 100uF 1311 20% ESR=280mOhms

T591B107M006ATE0707280
KEMET
8,000: $0.563
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B107M006ATE0707280

Mouser Part #
80-T591B107M6ATE70LR

KEMET

Tantalum Capacitors - Polymer 6.3V 100uF 1311 20% ESR=280mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.563

Min.: 8,000
Mult.: 8,000

Reel: 8,000

100 uF

6.3 VDC

SMD/SMT

20 %

1311

280 mOhms

63 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

Reel

Tantalum Capacitors - Polymer 50V 1.5 uF 3528 10% ESR=200mOhms

T591B155K050ATE200
KEMET
2,000: $0.679
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B155K050ATE200

Mouser Part #
80-T591B155K50ATE200

KEMET

Tantalum Capacitors - Polymer 50V 1.5 uF 3528 10% ESR=200mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.679

$0.667

Min.: 2,000
Mult.: 2,000

Reel: 2,000

1.5 uF

50 VDC

SMD/SMT

10 %

1311

200 mOhms

75 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

Reel

Tantalum Capacitors - Polymer 50V 1.5 uF 3528 20% ESR=200mOhms

T591B155M050ATE200
KEMET
2,000: $0.634
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B155M050ATE200

Mouser Part #
80-T591B155M50ATE200

KEMET

Tantalum Capacitors - Polymer 50V 1.5 uF 3528 20% ESR=200mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.634

$0.62

Min.: 2,000
Mult.: 2,000

Reel: 2,000

1.5 uF

50 VDC

SMD/SMT

20 %

1311

200 mOhms

75 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

Reel

Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=45mOhms AEC-Q200

T591B157M004ATE045
KEMET
2,000: $0.679
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B157M004ATE045

Mouser Part #
80-T591B157M004ATE45

KEMET

Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=45mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.679

$0.667

Min.: 2,000
Mult.: 2,000

Reel: 2,000

150 uF

4 VDC

SMD/SMT

20 %

1311

45 mOhms

60 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel

Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=55mOhms AEC-Q200

T591B157M004ATE055
KEMET
2,000: $0.679
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B157M004ATE055

Mouser Part #
80-T591B157M004ATE55

KEMET

Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=55mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.679

$0.667

Min.: 2,000
Mult.: 2,000

Reel: 2,000

150 uF

4 VDC

SMD/SMT

20 %

1311

55 mOhms

60 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel

Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=70mOhms AEC-Q200

T591B157M004ATE070
KEMET
2,000: $0.634
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B157M004ATE070

Mouser Part #
80-T591B157M004ATE70

KEMET

Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=70mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.634

$0.62

Min.: 2,000
Mult.: 2,000

Reel: 2,000

150 uF

4 VDC

SMD/SMT

20 %

1311

70 mOhms

60 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel

Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=45mOhms AEC-Q200

T591B157M006ATE045
KEMET
1: $1.95
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B157M006ATE045

Mouser Part #
80-T591B157M006ATE45

KEMET

Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=45mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.95

$1.00

$0.921

$0.781

Reel

$0.701

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

150 uF

6.3 VDC

SMD/SMT

20 %

1311

45 mOhms

94.5 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=55mOhms AEC-Q200

T591B157M006ATE055
KEMET
2,000: $0.701
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B157M006ATE055

Mouser Part #
80-T591B157M006ATE55

KEMET

Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=55mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.701

$0.645

Min.: 2,000
Mult.: 2,000

Reel: 2,000

150 uF

6.3 VDC

SMD/SMT

20 %

1311

55 mOhms

94.5 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel

Tantalum Capacitors - Polymer 35V 2.2uF 3528 20% ESR=150mOhms

T591B225M035ATE150
KEMET
1: $1.15
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B225M035ATE150

Mouser Part #
80-T591B225M35ATE150

KEMET

Tantalum Capacitors - Polymer 35V 2.2uF 3528 20% ESR=150mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.15

$0.845

$0.671

$0.591

Reel

$0.499

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

2.2 uF

35 VDC

SMD/SMT

20 %

1311

150 mOhms

7.7 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 35V 2.2uF 3528 20% ESR=200mOhms

T591B225M035ATE200
KEMET
1: $1.10
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B225M035ATE200

Mouser Part #
80-T591B225M35ATE200

KEMET

Tantalum Capacitors - Polymer 35V 2.2uF 3528 20% ESR=200mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.10

$0.791

$0.622

$0.546

Reel

$0.454

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

2.2 uF

35 VDC

SMD/SMT

20 %

1311

200 mOhms

7.7 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 22uF 1380 20% ESR=70mOhms AEC-Q200

T591B226M006ATE070
KEMET
1: $1.74
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B226M006ATE070

Mouser Part #
80-T591B226M006ATE70

KEMET

Tantalum Capacitors - Polymer 6.3V 22uF 1380 20% ESR=70mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.74

$1.18

$0.857

$0.71

Reel

$0.567

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

22 uF

6.3 VDC

SMD/SMT

20 %

1311

70 mOhms

13.9 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 22uF 1380 20% ESR=70mOhms AEC-Q200

T591B226M010ATE070
KEMET
1: $1.35
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B226M010ATE070

Mouser Part #
80-T591B226M010ATE70

KEMET

Tantalum Capacitors - Polymer 10V 22uF 1380 20% ESR=70mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.35

$0.992

$0.787

$0.694

Reel

$0.578

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

22 uF

10 VDC

SMD/SMT

20 %

1311

70 mOhms

22 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 220uF 20% 3528 ESR=45mOhms 2mm

T591B227M006ATE045
KEMET
1: $2.29
Non-Stocked Lead-Time 20 Weeks
New At Mouser

Mfr. Part #
T591B227M006ATE045

Mouser Part #
80-T591B227M006ATE45

New At Mouser

KEMET

Tantalum Capacitors - Polymer 6.3V 220uF 20% 3528 ESR=45mOhms 2mm

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$2.29

$1.20

$1.11

$0.947

Reel

$0.854

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

220 uF

20 %

- 55 C

+ 125 C

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6 VDC 220uF 3528 20% ESR=35mOhms

T591B227M006ATE035
KEMET
2,000: $0.899
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B227M006ATE035

Mouser Part #
80-T591B227M06ATE035

KEMET

Tantalum Capacitors - Polymer 6 VDC 220uF 3528 20% ESR=35mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$0.899

Quote

Min.: 2,000
Mult.: 2,000

Reel: 2,000

220 uF

6 VDC

SMD/SMT

20 %

1311

35 mOhms

132 uA

1.9 mm

- 55 C

+ 105 C

3528

B Case

T591

Reel

Tantalum Capacitors - Polymer 35V 3.3uF 3528 20% ESR=150mOhms

T591B335M035ATE150
KEMET
1: $1.38
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B335M035ATE150

Mouser Part #
80-T591B335M35ATE150

KEMET

Tantalum Capacitors - Polymer 35V 3.3uF 3528 20% ESR=150mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.38

$1.01

$0.804

$0.71

Reel

$0.589

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

3.3 uF

35 VDC

SMD/SMT

20 %

1311

150 mOhms

11.6 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 35V 3.3uF 3528 20% ESR=200mOhms

T591B335M035ATE200
KEMET
1: $1.66
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B335M035ATE200

Mouser Part #
80-T591B335M35ATE200

KEMET

Tantalum Capacitors - Polymer 35V 3.3uF 3528 20% ESR=200mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.66

$1.13

$0.82

$0.679

Reel

$0.544

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

3.3 uF

35 VDC

SMD/SMT

20 %

1311

200 mOhms

11.6 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 33uF 1380 20% ESR=70mOhms AEC-Q200

T591B336M006ATE070
KEMET
1: $1.33
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B336M006ATE070

Mouser Part #
80-T591B336M006ATE70

KEMET

Tantalum Capacitors - Polymer 6.3V 33uF 1380 20% ESR=70mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.33

$0.98

$0.778

$0.685

Reel

$0.572

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

33 uF

6.3 VDC

SMD/SMT

20 %

1311

70 mOhms

20.8 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6.3V 33uF 1311 20% ESR=80mOhms AEC-Q200

T591B336M006ATE080
KEMET
1: $1.75
Lead-Time 20 Weeks

Mfr. Part #
T591B336M006ATE080

Mouser Part #
80-T591B336M006E80

KEMET

Tantalum Capacitors - Polymer 6.3V 33uF 1311 20% ESR=80mOhms AEC-Q200

Learn More

Datasheet

Lead-Time 20 Weeks

Cut Tape

$1.75

$1.01

$0.778

$0.761

Reel

$0.572

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

33 uF

6.3 VDC

SMD/SMT

20 %

1311

80 mOhms

20.8 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 33uF 1380 20% ESR=70mOhms AEC-Q200

T591B336M010ATE070
KEMET
1: $1.81
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B336M010ATE070

Mouser Part #
80-T591B336M010ATE70

KEMET

Tantalum Capacitors - Polymer 10V 33uF 1380 20% ESR=70mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.81

$1.23

$0.894

$0.741

Reel

$0.589

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

33 uF

10 VDC

SMD/SMT

20 %

1311

70 mOhms

33 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 10V 33uF 1311 20% ESR=80mOhms AEC-Q200

T591B336M010ATE080
KEMET
1: $1.81
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
T591B336M010ATE080

Mouser Part #
80-T591B336M010E80

KEMET

Tantalum Capacitors - Polymer 10V 33uF 1311 20% ESR=80mOhms AEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

$1.81

$1.23

$0.894

$0.741

Reel

$0.589

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

33 uF

10 VDC

SMD/SMT

20 %

1311

80 mOhms

33 uA

1.9 mm

- 55 C

+ 125 C

3528

B Case

T591

AEC-Q200

Reel, Cut Tape, MouseReel

Tantalum Capacitors - Polymer 6 VDC 150uF 7343 20% ESR=45mOhms

T591D157M006ATE045
KEMET
1: $2.76
Non-Stocked Lead-Time 25 Weeks

Mfr. Part #
T591D157M006ATE045

Mouser Part #
80-T591D157M06ATE045

KEMET

Tantalum Capacitors - Polymer 6 VDC 150uF 7343 20% ESR=45mOhms

Learn More

Datasheet

Non-Stocked Lead-Time 25 Weeks

Cut Tape

$2.76

$1.91

$1.63

$1.43

Reel

$1.10

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

150 uF

6 VDC

SMD/SMT

20 %

2917

45 mOhms

90 uA

2.8 mm

- 55 C

+ 125 C

7343

D Case

T591

Reel, Cut Tape, MouseReel

T591 +125°C Polymer Automotive Capacitors

Mouser Electronics®

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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