T591 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. These devices 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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Capacitance
Voltage Rating DC
Termination Style
Tolerance
Case Code - in
ESR
Leakage Current
Height
Minimum Operating Temperature
Maximum Operating Temperature
Case Code - mm
Mfr Case Code
Series
Qualification
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KEMET Tantalum Capacitors - Polymer 10V 47uF 1311 20% ESR=70mOhms AEC-Q200
Datasheet
2,530In Stock
2,000Expected 26/05/2026
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
KEMET Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200
Datasheet
425In Stock
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
KEMET Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=25mOhms AEC-Q200
Datasheet
25In Stock
2,000On Order
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
KEMET Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=40mOhms AEC-Q200
Datasheet
827In Stock
500Expected 30/07/2026
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
KEMET Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=80mOhms AEC-Q200
Datasheet
400In Stock
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
KEMET Tantalum Capacitors - Polymer 16V 100uF 2917 20% ESR=50mOhms AEC-Q200
Datasheet
239In Stock
500Expected 07/04/2026
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
KEMET Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=45mOhms
Datasheet
210In Stock
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
KEMET Tantalum Capacitors - Polymer 25V 22uF 2917 20% ESR=60mOhms AEC-Q200
Datasheet
435In Stock
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
KEMET Tantalum Capacitors - Polymer 35Volt 22uF 2912 20% ESR=65mOhms AEC-Q200
Datasheet
54In Stock
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
KEMET Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=40mOhms AEC-Q200
Datasheet
397In Stock
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
KEMET Tantalum Capacitors - Polymer 6.3V 220uF 2917 20% ESR=25mOhms AEC-Q200
Datasheet
5In Stock
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
KEMET Tantalum Capacitors - Polymer 25V 33uF 2917 20% ESR=60mOhms AEC-Q200
Datasheet
113In Stock
500Expected 07/07/2026
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
KEMET Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=25mOhms AEC-Q200
Datasheet
26In Stock
2,000On Order
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
KEMET Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=40mOhms AEC-Q200
Datasheet
380In Stock
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
KEMET Tantalum Capacitors - Polymer 2.5V 330uF 2917 20% ESR=18mOhms AEC-Q200
Datasheet
487In Stock
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
KEMET Tantalum Capacitors - Polymer 75Vol 4.7uF 2912 20% ESR=200mOhms AEC-Q200
Datasheet
398In Stock
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
KEMET Tantalum Capacitors - Polymer 16V 47uF 2917 20% ESR=70mOhms AEC-Q200
Datasheet
435In Stock
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
KEMET Tantalum Capacitors - Polymer 20V 47uF AEC-Q200 20% ESR=50mOhms
Datasheet
366In Stock
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
KEMET Tantalum Capacitors - Polymer 2.5V 470uF 2870 20% ESR=6mOhms AEC-Q200
Datasheet
410In Stock
500Expected 22/09/2026
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
KEMET Tantalum Capacitors - Polymer 20V 68uF 2917 20% ESR=50mOhms AEC-Q200
Datasheet
85In Stock
1,000Expected 02/06/2026
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
KEMET Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200
Datasheet
339In Stock
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
KEMET Tantalum Capacitors - Polymer 2.5V 220uF 2917 20% ESR=9mOhms AEC-Q200
Datasheet
22In Stock
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
KEMET Tantalum Capacitors - Polymer 35V 47uF 2917 20% ESR=75mOhms AEC-Q200
Datasheet
222In Stock
500Expected 30/06/2026
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
KEMET Tantalum Capacitors - Polymer 6.3V 680uF 7343 20% ESR=25mOhms AEC-Q200
Datasheet
100In Stock
500Expected 13/10/2026
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
KEMET Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=90mOhms AEC-Q200
Datasheet
4,955On Order
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