Tantalum Capacitors - Polymer

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 105

Applied Filters:

Capacitance

Voltage Rating DC

Termination Style

Tolerance

Case Code - in

ESR

Leakage Current

Height

Maximum Operating Temperature

Case Code - mm

Mfr Case Code

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 2.5V 220uF 3528 20% ESR=9mOhms Harsh Env T591B227M2R5ATE009 KEMET 1: ¥207.6 4,000Expected 4/29/2027 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 about KEMET t591 auto caps	Datasheet	4,000Expected 4/29/2027	Cut Tape ¥207.6 ¥140.9 ¥102.5 ¥85 ¥79.1 Reel ¥71.1 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: ¥207.6 4,000Expected 4/29/2027 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 about KEMET t591 auto caps	Datasheet	4,000Expected 4/29/2027	Cut Tape ¥207.6 ¥140.9 ¥102.5 ¥85 ¥79.1 Reel ¥71.1 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: ¥224.2 4,000Expected 2/4/2027 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 about KEMET t591 auto caps	Datasheet	4,000Expected 2/4/2027	Cut Tape ¥224.2 ¥155.6 ¥114.8 ¥96 ¥89.7 Reel ¥84.9 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: ¥222.6 4,000Expected 4/29/2027 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 about KEMET t591 auto caps	Datasheet	4,000Expected 4/29/2027	Cut Tape ¥222.6 ¥155.5 ¥114.6 ¥95.8 ¥89.5 Reel ¥82.4 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: ¥378.7 2,000Expected 11/30/2026	Mfr. Part # T591D157M016ATE065 Mouser Part # 80-T591D157M16ATE65	KEMET	Tantalum Capacitors - Polymer 16V 150uF 2917 20% ESR=65mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	2,000Expected 11/30/2026	Cut Tape ¥378.7 ¥259.1 ¥210.9 ¥196 Reel ¥167.8 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	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=25mOhms AEC-Q200 T591D227M010ATE025 KEMET 1: ¥365.4 7,500On Order	Mfr. Part # T591D227M010ATE025 Mouser Part # 80-T591D227M010ATE25	KEMET	Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=25mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	7,500On Order On Order Ship Dates Mfr. #: T591D227M010ATE025 Stock: 0 On Order: 3,500 Expected 10/20/2026 4,000 Expected 4/29/2027 Factory Lead-Time: 52 Weeks	Cut Tape ¥365.4 ¥249.2 ¥245.8 ¥206 Reel ¥174.4 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	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 470uF 2870 20% ESR=6mOhms AEC-Q200 T591D477M2R5ATE006 KEMET 1: ¥397 3,993On Order	Mfr. Part # T591D477M2R5ATE006 Mouser Part # 80-T591D477M2R5ATE06	KEMET	Tantalum Capacitors - Polymer 2.5V 470uF 2870 20% ESR=6mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	3,993On Order On Order Ship Dates Mfr. #: T591D477M2R5ATE006 Stock: 0 On Order: 493 Expected 2/23/2027 1,500 Expected 3/30/2027 2,000 Expected 9/6/2027 Factory Lead-Time: 52 Weeks	Cut Tape ¥397 ¥280.7 ¥242.5 ¥209.3 Reel ¥182.7 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,000 : 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	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 330uF 7343 ESR=25mOhms Harsh Env T591X337M010ATE025 KEMET 1: ¥789 1,000On Order New Product	Mfr. Part # T591X337M010ATE025 Mouser Part # 80-T591X337M10ATE025 New Product	KEMET	Tantalum Capacitors - Polymer 10V 330uF 7343 ESR=25mOhms Harsh Env Learn More about KEMET t591 auto caps	Datasheet	1,000On Order On Order Ship Dates Mfr. #: T591X337M010ATE025 Stock: 0 On Order: 500 Expected 10/20/2026 500 Expected 2/1/2027 Factory Lead-Time: 37 Weeks	Cut Tape ¥789 ¥568.1 ¥493.3 ¥435.2 Reel ¥377 MouseReel Available	Min.: 1 Mult.: 1 : 500	330 uF	10 VDC	SMD/SMT	20 %	2917	25 mOhms	330 uA	4 mm	- 55 C	+ 125 C	7343	X Coded	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 35V 47uF 2917 20% ESR=75mOhms AEC-Q200 T591X476M035ATE075 KEMET 1: ¥822.2 1,500On Order	Mfr. Part # T591X476M035ATE075 Mouser Part # 80-T591X476M35E75	KEMET	Tantalum Capacitors - Polymer 35V 47uF 2917 20% ESR=75mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	1,500On Order On Order Ship Dates Mfr. #: T591X476M035ATE075 Stock: 0 On Order: 500 Expected 11/30/2026 1,000 Expected 8/17/2027 Factory Lead-Time: 25 Weeks	Cut Tape ¥822.2 ¥593 ¥501.6 ¥471.7 Reel ¥423.6 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	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 470uF 20% 25mOhms -55C/+125C AEC-Q200 T591X477M010ATE025 KEMET 1: ¥619.6 3,000On Order	Mfr. Part # T591X477M010ATE025 Mouser Part # 80-T591X477M010ATE25	KEMET	Tantalum Capacitors - Polymer 10V 470uF 20% 25mOhms -55C/+125C AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	3,000On Order On Order Ship Dates Mfr. #: T591X477M010ATE025 Stock: 0 On Order: 1,000 Expected 3/4/2027 2,000 Expected 4/29/2027 Factory Lead-Time: 37 Weeks	Cut Tape ¥619.6 ¥451.8 ¥415.3 ¥342.2 Reel ¥285.7 MouseReel Available	Min.: 1 Mult.: 1 : 500	470 uF	10 VDC	SMD/SMT	20 %	2815	25 mOhms	470 uA	4 mm	- 55 C	+ 125 C	7343	X Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 25V 22uF 2917 20% ESR=60mOhms AEC-Q200 T591D226M025ATE060 KEMET 1: ¥368.7 500Expected 1/20/2027	Mfr. Part # T591D226M025ATE060 Mouser Part # 80-T591D226M025ATE60	KEMET	Tantalum Capacitors - Polymer 25V 22uF 2917 20% ESR=60mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	500Expected 1/20/2027	Cut Tape ¥368.7 ¥250.8 ¥202.6 ¥189.4 Reel ¥163.3 MouseReel Available	Min.: 1 Mult.: 1 : 500	22 uF	25 VDC	SMD/SMT	20 %	2917	60 mOhms	55 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=80mOhms AEC-Q200 T591D337M006ATE080 KEMET 1: ¥257.5 489Expected 12/8/2026	Mfr. Part # T591D337M006ATE080 Mouser Part # 80-T591D337M006ATE80	KEMET	Tantalum Capacitors - Polymer 6.3V 330uF 2917 20% ESR=80mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	489Expected 12/8/2026	Cut Tape ¥257.5 ¥135 ¥124.4 Reel ¥106.1 MouseReel Available	Min.: 1 Mult.: 1 : 500	330 uF	6.3 VDC	SMD/SMT	20 %	2917	80 mOhms	207.9 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T591	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4VDC 100uF 1380 20% ESR=45mOhms AEC-Q200 T591B107M004ATE045 KEMET 2,000: ¥70.3 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B107M004ATE045 Mouser Part # 80-T591B107M004ATE45	KEMET	Tantalum Capacitors - Polymer 4VDC 100uF 1380 20% ESR=45mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥70.3	Min.: 2,000 Mult.: 2,000 : 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	Reel
Tantalum Capacitors - Polymer 4VDC 100uF 1380 20% ESR=55mOhms AEC-Q200 T591B107M004ATE055 KEMET 2,000: ¥80.9 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B107M004ATE055 Mouser Part # 80-T591B107M004ATE55	KEMET	Tantalum Capacitors - Polymer 4VDC 100uF 1380 20% ESR=55mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥80.9	Min.: 2,000 Mult.: 2,000 : 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	Reel
Tantalum Capacitors - Polymer 6.3V 100uF 1380 20% ESR=55mOhms AEC-Q200 T591B107M006ATE055 KEMET 2,000: ¥106.3 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B107M006ATE055 Mouser Part # 80-T591B107M006ATE55	KEMET	Tantalum Capacitors - Polymer 6.3V 100uF 1380 20% ESR=55mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥106.3	Min.: 2,000 Mult.: 2,000 : 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	Reel
Tantalum Capacitors - Polymer 6.3V 100uF 1311 20% ESR=280mOhms T591B107M006ATE0707280 KEMET 8,000: ¥63.9 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B107M006ATE0707280 Mouser Part # 80-T591B107M6ATE70LR	KEMET	Tantalum Capacitors - Polymer 6.3V 100uF 1311 20% ESR=280mOhms Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥63.9	Min.: 8,000 Mult.: 8,000 : 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: ¥72.8 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B155K050ATE200 Mouser Part # 80-T591B155K50ATE200	KEMET	Tantalum Capacitors - Polymer 50V 1.5 uF 3528 10% ESR=200mOhms Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥72.8	Min.: 2,000 Mult.: 2,000 : 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: ¥67.9 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B155M050ATE200 Mouser Part # 80-T591B155M50ATE200	KEMET	Tantalum Capacitors - Polymer 50V 1.5 uF 3528 20% ESR=200mOhms Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥67.9	Min.: 2,000 Mult.: 2,000 : 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: ¥72.8 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B157M004ATE045 Mouser Part # 80-T591B157M004ATE45	KEMET	Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=45mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥72.8	Min.: 2,000 Mult.: 2,000 : 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	Reel
Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=55mOhms AEC-Q200 T591B157M004ATE055 KEMET 2,000: ¥72.8 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B157M004ATE055 Mouser Part # 80-T591B157M004ATE55	KEMET	Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=55mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥72.8	Min.: 2,000 Mult.: 2,000 : 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	Reel
Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=70mOhms AEC-Q200 T591B157M004ATE070 KEMET 2,000: ¥67.9 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B157M004ATE070 Mouser Part # 80-T591B157M004ATE70	KEMET	Tantalum Capacitors - Polymer 4VDC 150uF 1380 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥67.9	Min.: 2,000 Mult.: 2,000 : 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	Reel
Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=55mOhms AEC-Q200 T591B157M006ATE055 KEMET 2,000: ¥75.1 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B157M006ATE055 Mouser Part # 80-T591B157M006ATE55	KEMET	Tantalum Capacitors - Polymer 6.3V 150uF 1380 20% ESR=55mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel ¥75.1	Min.: 2,000 Mult.: 2,000 : 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	Reel
Tantalum Capacitors - Polymer 35V 2.2uF 3528 20% ESR=150mOhms T591B225M035ATE150 KEMET 1: ¥172.7 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B225M035ATE150 Mouser Part # 80-T591B225M35ATE150	KEMET	Tantalum Capacitors - Polymer 35V 2.2uF 3528 20% ESR=150mOhms Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Cut Tape ¥172.7 ¥116.6 ¥84.9 ¥70.4 ¥65.4 Reel ¥53.5 MouseReel Available	Min.: 1 Mult.: 1 : 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: ¥167.8 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B225M035ATE200 Mouser Part # 80-T591B225M35ATE200	KEMET	Tantalum Capacitors - Polymer 35V 2.2uF 3528 20% ESR=200mOhms Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Cut Tape ¥167.8 ¥111.1 ¥80.2 ¥66.1 ¥61.3 Reel ¥48.7 MouseReel Available	Min.: 1 Mult.: 1 : 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: ¥199.3 Non-Stocked Lead-Time 25 Weeks	Mfr. Part # T591B226M006ATE070 Mouser Part # 80-T591B226M006ATE70	KEMET	Tantalum Capacitors - Polymer 6.3V 22uF 1380 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t591 auto caps	Datasheet	Non-Stocked Lead-Time 25 Weeks	Cut Tape ¥199.3 ¥134.9 ¥98.2 ¥81.4 ¥75.7 Reel ¥60.8 MouseReel Available	Min.: 1 Mult.: 1 : 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	Reel, Cut Tape, MouseReel