Tantalum Capacitors - Polymer

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) Filter the results in the table by unit price based on your quantity.	Qty.	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	Packaging
Tantalum Capacitors - Polymer 6.3V 47uF 1311 20% ESR=70mOhms AEC-Q200 T591B476M006ATE070 KEMET 1: Rp21.648 4.090In Stock	Mfr. Part No. T591B476M006ATE070 Mouser Part No 80-T591B476M006E70	KEMET	Tantalum Capacitors - Polymer 6.3V 47uF 1311 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	4.090In Stock	Cut Tape Rp21.648 Rp11.026 Rp10.090 Rp8.513 Rp8.017 Reel Rp7.595 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	47 uF	6.3 VDC	SMD/SMT	20 %	1311	70 mOhms	29.6 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4V 220uF 7343-20 12mOhms 20% Harsh Env T591V227M004ATE012 KEMET 1: Rp51.736 700In Stock New Product	Mfr. Part No. T591V227M004ATE012 Mouser Part No 80-T591V227M004ATE12 New Product	KEMET	Tantalum Capacitors - Polymer 4V 220uF 7343-20 12mOhms 20% Harsh Env Learn More about KEMET t591 auto caps	Datasheet	700In Stock	Cut Tape Rp51.736 Rp36.875 Rp31.739 Rp27.886 Reel Rp22.199 View Rp24.767 Rp20.914 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2.000 : 1.000	220 uF	2.68 VDC, 4 VDC	SMD/SMT	20 %	2815	12 mOhms	88 uA	1.9 mm	- 55 C	+ 125 C	7343		T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 7343-20 15mOhms 20% Harsh Env T591V337M2R5ATE015 KEMET 1: Rp61.092 700In Stock New Product	Mfr. Part No. T591V337M2R5ATE015 Mouser Part No 80-T591V337M2R5ATE15 New Product	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 7343-20 15mOhms 20% Harsh Env Learn More about KEMET t591 auto caps	Datasheet	700In Stock	Cut Tape Rp61.092 Rp45.315 Rp44.764 Reel Rp44.581 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	330 uF	1.68 VDC, 2.5 VDC	SMD/SMT	20 %	2815	15 mOhms	82.5 uA	1.9 mm	- 55 C	+ 125 C	7343		T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 470uF 20% 25mOhms -55C/+125C AEC-Q200 T591X477M006ATE025 KEMET 1: Rp60.542 957In Stock	Mfr. Part No. T591X477M006ATE025 Mouser Part No 80-T591X477M006ATE25	KEMET	Tantalum Capacitors - Polymer 6.3V 470uF 20% 25mOhms -55C/+125C AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	957In Stock	Cut Tape Rp60.542 Rp44.948 Rp38.894 Rp34.307 Reel Rp25.501 View Rp23.850 Rp23.299 Quote MouseReel Available	Min.: 1 Mult.: 1 : 500	470 uF	6 VDC	SMD/SMT	20 %	2815	25 mOhms	282 uA	4 mm	- 55 C	+ 125 C	7343	X Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 20V 68uF 2917 20% ESR=50mOhms AEC-Q200 T591D686M020ATE050 KEMET 1: Rp40.361 1.000In Stock	Mfr. Part No. T591D686M020ATE050 Mouser Part No 80-T591D686M020ATE50	KEMET	Tantalum Capacitors - Polymer 20V 68uF 2917 20% ESR=50mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	1.000In Stock	Cut Tape Rp40.361 Rp30.454 Rp27.519 Rp24.400 Reel Rp21.648 MouseReel Available	Min.: 1 Mult.: 1 : 500	68 uF	20 VDC	SMD/SMT	20 %	2917	50 mOhms	136 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 35V 4.7uF 1311 20% ESR=200mOhm AEC-Q200 T591B475M035ATE200 KEMET 1: Rp24.217 2.732In Stock	Mfr. Part No. T591B475M035ATE200 Mouser Part No 80-T591B475M35ATE200	KEMET	Tantalum Capacitors - Polymer 35V 4.7uF 1311 20% ESR=200mOhm AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	2.732In Stock	Cut Tape Rp24.217 Rp12.512 Rp11.485 Rp9.742 Rp9.191 Reel Rp8.733 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	4.7 uF	35 VDC	SMD/SMT	20 %	1311	200 mOhms	16.5 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 47uF 1311 20% ESR=70mOhms AEC-Q200 T591B476M010ATE070 KEMET 1: Rp25.868 2.000In Stock	Mfr. Part No. T591B476M010ATE070 Mouser Part No 80-T591B476M010E70	KEMET	Tantalum Capacitors - Polymer 10V 47uF 1311 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	2.000In Stock	Cut Tape Rp25.868 Rp13.980 Rp12.824 Rp10.732 Rp10.164 Reel Rp9.485 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4.000 : 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	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 150uF 2917 20% ESR=25mOhms AEC-Q200 T591D157M006ATE025 KEMET 1: Rp35.591 178In Stock	Mfr. Part No. T591D157M006ATE025 Mouser Part No 80-T591D157M6ATE25	KEMET	Tantalum Capacitors - Polymer 6.3V 150uF 2917 20% ESR=25mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	178In Stock	Cut Tape Rp35.591 Rp24.584 Rp21.098 Rp18.291 Reel Rp12.989 MouseReel Available	Min.: 1 Mult.: 1 : 500	150 uF	6.3 VDC	SMD/SMT	20 %	2917	25 mOhms	94.5 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 68uF 1311 20% ESR=70mOhms AEC-Q200 T591B686M006ATE070 KEMET 1: Rp24.400 90In Stock	Mfr. Part No. T591B686M006ATE070 Mouser Part No 80-T591B686M6ATE70	KEMET	Tantalum Capacitors - Polymer 6.3V 68uF 1311 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	90In Stock	Cut Tape Rp24.400 Rp13.448 Rp12.035 Rp8.659 Rp8.164 Reel Rp7.742 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	68 uF	6.3 VDC	SMD/SMT	20 %	2917	70 mOhms	42.8 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 2917 20% ESR=12mOhms AEC-Q200 T591V337M2R5ATE012 KEMET 1: Rp59.991 923In Stock	Mfr. Part No. T591V337M2R5ATE012 Mouser Part No 80-T591V337M2R5ATE12	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 2917 20% ESR=12mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	923In Stock	Cut Tape Rp59.991 Rp42.012 Rp34.674 Rp32.472 Rp28.803 Reel Rp27.336 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	330 uF	2.5 VDC	SMD/SMT	20 %	2917	12 mOhms	82.5 uA	1.9 mm	- 55 C	+ 125 C	7343	V Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4V 100uF 2917 20% ESR=70mOhms AEC-Q200 T591B107M004ATE070 KEMET 1: Rp21.648 1.950In Stock	Mfr. Part No. T591B107M004ATE070 Mouser Part No 80-T591B107M004ATE70	KEMET	Tantalum Capacitors - Polymer 4V 100uF 2917 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	1.950In Stock	Cut Tape Rp21.648 Rp11.026 Rp10.090 Rp8.513 Rp8.017 Reel Rp7.595 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	100 uF	4 VDC	SMD/SMT	20 %	1311	70 mOhms	40 uA	1.9 mm	- 55 C	+ 105 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4V 220uF 7343 ESR=9mOhms Harsh Env T591V227M004ATE009 KEMET 1: Rp51.919 2.000In Stock New Product	Mfr. Part No. T591V227M004ATE009 Mouser Part No 80-T591V227M04ATE009 New Product	KEMET	Tantalum Capacitors - Polymer 4V 220uF 7343 ESR=9mOhms Harsh Env Learn More about KEMET t591 auto caps	Datasheet	2.000In Stock	Cut Tape Rp51.919 Rp37.059 Rp31.922 Rp28.069 Reel Rp22.199 View Rp24.951 Rp20.914 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2.000 : 1.000	220 uF	4 VDC	SMD/SMT	20 %	2917	9 mOhms	88 uA	1.9 mm	- 55 C	+ 125 C	7343	V Coded	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 7343-20 15mOhms 20% Harsh Env T591V337M2R5ATE009 KEMET 1: Rp61.092 700In Stock New Product	Mfr. Part No. T591V337M2R5ATE009 Mouser Part No 80-T591V337M2R5ATE09 New Product	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 7343-20 15mOhms 20% Harsh Env Learn More about KEMET t591 auto caps	Datasheet	700In Stock	Cut Tape Rp61.092 Rp45.315 Rp44.764 Reel Rp44.581 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	330 uF	1.68 VDC, 2.5 VDC	SMD/SMT	20 %	2815	15 mOhms	82.5 uA	1.9 mm	- 55 C	+ 125 C	7343		T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 100uF 1380 20% ESR=45mOhms AEC-Q200 T591B107M006ATE045 KEMET 1: Rp22.933 7.290In Stock	Mfr. Part No. T591B107M006ATE045 Mouser Part No 80-T591B107M006ATE45	KEMET	Tantalum Capacitors - Polymer 6.3V 100uF 1380 20% ESR=45mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	7.290In Stock	Cut Tape Rp22.933 Rp11.760 Rp10.769 Rp9.118 Rp8.604 Reel Rp8.586 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	100 uF	6.3 VDC	SMD/SMT	20 %	1311	45 mOhms	63 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=45mOhms AEC-Q200 T591B157M006ATE045 KEMET 1: Rp25.134 5.700In Stock	Mfr. Part No. T591B157M006ATE045 Mouser Part No 80-T591B157M006ATE45	KEMET	Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=45mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	5.700In Stock	Cut Tape Rp25.134 Rp13.154 Rp12.072 Rp10.274 Rp9.705 Reel Rp9.155 MouseReel Available	Min.: 1 Mult.: 1 : 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	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 220uF 20% 3528 ESR=45mOhms 2mm T591B227M006ATE045 KEMET 1: Rp28.436 6.000In Stock	Mfr. Part No. T591B227M006ATE045 Mouser Part No 80-T591B227M006ATE45	KEMET	Tantalum Capacitors - Polymer 6.3V 220uF 20% 3528 ESR=45mOhms 2mm Learn More about KEMET t591 auto caps	Datasheet	6.000In Stock	Cut Tape Rp28.436 Rp14.952 Rp13.760 Rp11.760 Rp11.154 Reel Rp10.622 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	220 uF			20 %					- 55 C	+ 125 C			T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=90mOhms AEC-Q200 T591D106M050ATE090 KEMET 1: Rp46.599 2.115In Stock 2.000Expected 23/11/2026	Mfr. Part No. T591D106M050ATE090 Mouser Part No 80-T591D106M050ATE90	KEMET	Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=90mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	2.115In Stock 2.000Expected 23/11/2026	Cut Tape Rp46.599 Rp31.922 Rp26.235 Rp24.400 Reel Rp21.098 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2.000 : 500	10 uF	50 VDC	SMD/SMT	20 %	2917	90 mOhms	50 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 680uF 20% 7343-31 -55 /+125C ESR=6mOhms T591D687M2R5ATE006 KEMET 1: Rp49.534 582In Stock 1.000On Order New Product	Mfr. Part No. T591D687M2R5ATE006 Mouser Part No 80-T591D687M2R5ATE06 New Product	KEMET	Tantalum Capacitors - Polymer 2.5V 680uF 20% 7343-31 -55 /+125C ESR=6mOhms Learn More about KEMET t591 auto caps	Datasheet	582In Stock 1.000On Order On Order Ship Dates Mfr. No: T591D687M2R5ATE006 Stock: 582 Can Dispatch Immediately On Order: 500 Expected 18/05/2027 500 Expected 21/09/2027 Factory Lead Time: 41 Weeks	Cut Tape Rp49.534 Rp35.224 Rp30.271 Rp26.602 Reel Rp23.666 View Rp21.281 Rp19.997 Rp19.080 MouseReel Available	Min.: 1 Mult.: 1 : 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 680uF 20% 9mOhms -55C/+125C AEC-Q200 T591D687M2R5ATE009 KEMET 1: Rp52.836 251In Stock	Mfr. Part No. T591D687M2R5ATE009 Mouser Part No 80-T591D687M2R5ATE09	KEMET	Tantalum Capacitors - Polymer 2.5V 680uF 20% 9mOhms -55C/+125C AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	251In Stock	Cut Tape Rp52.836 Rp37.609 Rp32.472 Rp28.436 Reel Rp25.317 View Rp22.749 Rp21.465 Rp20.364 MouseReel Available	Min.: 1 Mult.: 1 : 500	680 uF	2.5 VDC	SMD/SMT	20 %	2815	9 mOhms	170 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 100uF 1311 20% ESR=70mOhms AEC-Q200 T591B107M006ATE070 KEMET 1: Rp21.648 2.688In Stock	Mfr. Part No. T591B107M006ATE070 Mouser Part No 80-T591B107M006ATE70	KEMET	Tantalum Capacitors - Polymer 6.3V 100uF 1311 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	2.688In Stock	Cut Tape Rp21.648 Rp11.026 Rp10.090 Rp8.513 Rp8.017 Reel Rp7.595 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	100 uF	6.3 VDC	SMD/SMT	20 %	1311	70 mOhms	63 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 150uF 1311 20% ESR=70mOhms T591B157M006ATE070 KEMET 1: Rp22.933 470In Stock	Mfr. Part No. T591B157M006ATE070 Mouser Part No 80-T591B157M006ATE70	KEMET	Tantalum Capacitors - Polymer 6.3V 150uF 1311 20% ESR=70mOhms Learn More about KEMET t591 auto caps	Datasheet	470In Stock	Cut Tape Rp22.933 Rp11.760 Rp10.769 Rp9.118 Rp8.604 Reel Rp8.164 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	150 uF	6.3 VDC	SMD/SMT	20 %	1311	70 mOhms	94.5 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 50V 2.2uF 3528 20% ESR=150mOhms AEC-Q200 T591B225M050ATE150 KEMET 1: Rp25.868 1.020In Stock	Mfr. Part No. T591B225M050ATE150 Mouser Part No 80-T591B225M50ATE150	KEMET	Tantalum Capacitors - Polymer 50V 2.2uF 3528 20% ESR=150mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	1.020In Stock	Cut Tape Rp25.868 Rp13.521 Rp12.439 Rp10.586 Rp10.017 Reel Rp9.467 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	2.2 uF	50 VDC	SMD/SMT	20 %	1311	150 mOhms	11 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 50V 2.2uF 3528 20% ESR=200mOhms AEC-Q200 T591B225M050ATE200 KEMET 1: Rp23.666 1.976In Stock	Mfr. Part No. T591B225M050ATE200 Mouser Part No 80-T591B225M50ATE200	KEMET	Tantalum Capacitors - Polymer 50V 2.2uF 3528 20% ESR=200mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	1.976In Stock	Cut Tape Rp23.666 Rp12.108 Rp11.099 Rp9.411 Rp8.879 Reel Rp8.439 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	2.2 uF	50 VDC	SMD/SMT	20 %	1311	200 mOhms	11 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200 T591D106M035ATE120 KEMET 1: Rp44.397 747In Stock	Mfr. Part No. T591D106M035ATE120 Mouser Part No 80-T591D106M35ATE120	KEMET	Tantalum Capacitors - Polymer 35V 10uF 2917 20% ESR=120mOhm AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	747In Stock	Cut Tape Rp44.397 Rp30.454 Rp24.767 Rp23.116 Reel Rp19.997 MouseReel Available	Min.: 1 Mult.: 1 : 500	10 uF	35 VDC	SMD/SMT	20 %	2917	120 mOhms	35 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=25mOhms AEC-Q200 T591D107M010ATE025 KEMET 1: Rp30.271 402In Stock 500Expected 08/04/2027	Mfr. Part No. T591D107M010ATE025 Mouser Part No 80-T591D107M010E25	KEMET	Tantalum Capacitors - Polymer 10V 100uF 2917 20% ESR=25mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	402In Stock 500Expected 08/04/2027	Cut Tape Rp30.271 Rp20.181 Rp15.979 Rp14.750 Reel Rp12.622 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.000 : 500	100 uF	10 VDC	SMD/SMT	20 %	2917	25 mOhms	100 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel