Tantalum Capacitors - Polymer

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Polymer Capacitors Cloud & AI Applications

KEMET Organic Capacitors (KO-CAP®) provide an ideal solution for applications requiring power-loss (hold up) protection or maximum power efficiency of a circuit with limited board space. Polymer technology offers high energy density and extended life capabilities, making it a key solution for designers working in cloud infrastructure applications like solid-state drives, 5G, and servers. In addition, with the AI computing edge trend pushing for high power, KEMET KO-CAPs are vital on 12V input and low voltage 1V CPU and I/O 3.3V and 5V power rails. These capacitors offer both long life and high ripple capability.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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	Qualification	Packaging
Tantalum Capacitors - Polymer 2.5V 470uF 20% ESR=9mOhms AEC-Q200 T598D477M2R5ATE009 KEMET 1: $2.53 21,474In Stock 2,500Expected 30/11/2026	Mfr. Part No. T598D477M2R5ATE009 Mouser Part No 80-T598D477M2R5ATE09	KEMET	Tantalum Capacitors - Polymer 2.5V 470uF 20% ESR=9mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	21,474In Stock 2,500Expected 30/11/2026	Cut Tape $2.53 $1.91 $1.57 $1.46 Reel $1.28 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,000 : 500	470 uF	2.5 VDC	SMD/SMT	20 %	2917	9 mOhms	117.5 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 25Volt 15uF 3528 20% 125C ESR=90mOhms T521B156M025ATE090 KEMET 1: $1.34 4,000In Stock	Mfr. Part No. T521B156M025ATE090 Mouser Part No 80-T521B156M025ATE90	KEMET	Tantalum Capacitors - Polymer 25Volt 15uF 3528 20% 125C ESR=90mOhms Learn More about KEMET t521 caps	Datasheet	4,000In Stock	Cut Tape $1.34 $0.738 $0.645 $0.562 Reel $0.506 View $0.534 $0.497 $0.442 $0.429 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	15 uF	25 VDC	SMD/SMT	20 %	1311	90 mOhms	37.5 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T521		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 7343-20 15mOhms 20% Harsh Env T591V337M2R5ATE015 KEMET 1: $3.33 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 $3.33 $2.47 $2.44 Reel $2.43 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 16V 68uF 20% ESR=50mOhms T520D686M016ATE0507280 KEMET 1: $3.24 3,695In Stock 2,400Expected 26/10/2026	Mfr. Part No. T520D686M016ATE0507280 Mouser Part No 80-T520D686M16ATE050	KEMET	Tantalum Capacitors - Polymer 16V 68uF 20% ESR=50mOhms Learn More about KEMET t520caps	Datasheet	3,695In Stock 2,400Expected 26/10/2026	Cut Tape $3.24 $2.41 $2.08 $1.83 View Reel $1.52 $1.61 $1.52 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	68 uF	16 VDC	SMD/SMT	20 %	2917	50 mOhms	108.8 uA	2.8 mm	- 55 C	+ 105 C	7343	D Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4V 220uF 7343-20 12mOhms 20% Harsh Env T591V227M004ATE012 KEMET 1: $2.82 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 $2.82 $2.01 $1.73 $1.52 Reel $1.21 View $1.35 $1.14 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 T591V337M2R5ATE009 KEMET 1: $3.33 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 $3.33 $2.47 $2.44 Reel $2.43 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 25V 68uF 7343 ESR=50mOhms AEC-Q200 T598D686M025ATE050 KEMET 1: $2.44 1,381In Stock New Product	Mfr. Part No. T598D686M025ATE050 Mouser Part No 80-T598D686M25ATE050 New Product	KEMET	Tantalum Capacitors - Polymer 25V 68uF 7343 ESR=50mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	1,381In Stock	Cut Tape $2.44 $1.73 $1.48 $1.30 Reel $1.14 $1.05 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,000 : 500	68 uF	25 VDC	SMD/SMT	20 %	2917	50 mOhms	170 uA	2.8 mm	- 55 C	+ 125 C	7343	D Coded	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 1000uF 2917 20% ESR=30mOhms T520D108M2R5ATE030 KEMET 1: $2.85 2,598In Stock	Mfr. Part No. T520D108M2R5ATE030 Mouser Part No 80-T520D108M2R5ATE30	KEMET	Tantalum Capacitors - Polymer 2.5V 1000uF 2917 20% ESR=30mOhms Learn More about KEMET t520caps	Datasheet	2,598In Stock	Cut Tape $2.85 $1.97 $1.62 $1.51 Reel $1.37 MouseReel Available	Min.: 1 Mult.: 1 : 500	1000 uF	2.5 VDC	SMD/SMT	20 %	2917	30 mOhms	250 uA	2.8 mm	- 55 C	+ 105 C	7343	D Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4Volt 220uF 2912 20% ESR=25mOhms T520T227M004ATE025 KEMET 1: $1.52 3,000In Stock	Mfr. Part No. T520T227M004ATE025 Mouser Part No 80-T520T227M004ATE25	KEMET	Tantalum Capacitors - Polymer 4Volt 220uF 2912 20% ESR=25mOhms Learn More about KEMET t520caps	Datasheet	3,000In Stock	Cut Tape $1.52 $0.796 $0.732 $0.625 $0.592 Reel $0.591 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	220 uF	4 VDC	SMD/SMT	20 %	1411	25 mOhms	88 uA		- 55 C	+ 105 C	3528	T Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 50V 6.8uF 2917 20% ESR=70mOhms T521V685M050ATE070 KEMET 1: $4.10 1,256In Stock	Mfr. Part No. T521V685M050ATE070 Mouser Part No 80-T521V685M50ATE70	KEMET	Tantalum Capacitors - Polymer 50V 6.8uF 2917 20% ESR=70mOhms Learn More about KEMET t521 caps	Datasheet	1,256In Stock	Cut Tape $4.10 $2.91 $2.44 $2.30 $2.05 Reel $2.04 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6.8 uF	50 VDC	SMD/SMT	20 %	2917	70 mOhms	34 uA	1.8 mm	- 55 C	+ 125 C	7343	V Case	T521		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 100uF 1311 20% ESR=70mOhms AEC-Q200 T598B107M2R5ATE070 KEMET 1: $1.23 3,184In Stock	Mfr. Part No. T598B107M2R5ATE070 Mouser Part No 80-T598B107M2R5ATE70	KEMET	Tantalum Capacitors - Polymer 2.5V 100uF 1311 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	3,184In Stock	Cut Tape $1.23 $0.809 $0.721 $0.637 Reel $0.602 View $0.604 $0.508 $0.482 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	100 uF	2.5 VDC	SMD/SMT	20 %	1311	70 mOhms	25 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 7343-20 12mOhms 20% AEC-Q200 T598V337M2R5ATE012 KEMET 1: $3.12 700In Stock New Product	Mfr. Part No. T598V337M2R5ATE012 Mouser Part No 80-T598V337M2R5ATE12 New Product	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 7343-20 12mOhms 20% AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	700In Stock	Cut Tape $3.12 $2.26 $1.95 $1.72 Reel $1.36 View $1.52 $1.29 $1.23 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	330 uF	1.68 VDC, 2.5 VDC	SMD/SMT	20 %	2815	12 mOhms	82.5 uA	1.9 mm	- 55 C	+ 125 C	7343		T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 150uF 2917 20% ESR=15mOhms T520D157M006ATE015 KEMET 1: $1.91 5,477In Stock	Mfr. Part No. T520D157M006ATE015 Mouser Part No 80-T520D157M6E15	KEMET	Tantalum Capacitors - Polymer 6.3V 150uF 2917 20% ESR=15mOhms Learn More about KEMET t520caps	Datasheet	5,477In Stock	Cut Tape $1.91 $1.28 $1.03 $0.952 Reel $0.791 MouseReel Available	Min.: 1 Mult.: 1 : 500	150 uF	6.3 VDC	SMD/SMT	20 %	2917	15 mOhms	94.5 uA	2.8 mm	- 55 C	+ 105 C	7343	D Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=120mOhms T521D106M050ATE120 KEMET 1: $2.71 5,333In Stock	Mfr. Part No. T521D106M050ATE120 Mouser Part No 80-T521D106M50ATE120	KEMET	Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=120mOhms Learn More about KEMET t521 caps	Datasheet	5,333In Stock	Cut Tape $2.71 $1.93 $1.66 $1.46 Reel $1.29 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,000 : 500	10 uF	50 VDC	SMD/SMT	20 %	2917	120 mOhms	50 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T521		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 35V 33uF 3528 20% ESR=150mOhms AECQ200 T598B335M035ATE150 KEMET 1: $1.21 4,709In Stock	Mfr. Part No. T598B335M035ATE150 Mouser Part No 80-T598B335M35ATE150	KEMET	Tantalum Capacitors - Polymer 35V 33uF 3528 20% ESR=150mOhms AECQ200 Learn More about KEMET t598series capacitors	Datasheet	4,709In Stock	Cut Tape $1.21 $0.615 $0.563 $0.476 Reel $0.461 MouseReel Available	Min.: 1 Mult.: 1 : 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	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 330uF 20% ESR=15mOhms T520D337M006ATE0157280 KEMET 1: $2.21 2,467In Stock	Mfr. Part No. T520D337M006ATE0157280 Mouser Part No 80-T520D337M06ATE015	KEMET	Tantalum Capacitors - Polymer 6.3V 330uF 20% ESR=15mOhms Learn More about KEMET t520caps	Datasheet	2,467In Stock	Cut Tape $2.21 $1.56 $1.34 $1.17 View Reel $0.924 $1.02 $0.924 $0.924 MouseReel Available	Min.: 1 Mult.: 1 Max.: 5,000 : 2,500	330 uF	6.3 VDC	SMD/SMT	20 %	2917	15 mOhms	207.9 uA	2.8 mm	- 55 C	+ 105 C	7343	D Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4V 680uF 2917 20% ESR=15mOhms T520X687M004ATE015 KEMET 1: $7.10 1,000In Stock	Mfr. Part No. T520X687M004ATE015 Mouser Part No 80-T520X687M04ATE015	KEMET	Tantalum Capacitors - Polymer 4V 680uF 2917 20% ESR=15mOhms Learn More about KEMET t520caps	Datasheet	1,000In Stock	Cut Tape $7.10 $5.24 $4.60 $4.09 Reel $3.93 MouseReel Available	Min.: 1 Mult.: 1 : 500	680 uF	4 VDC	SMD/SMT	20 %	2917	15 mOhms	272 uA	4 mm	- 55 C	+ 105 C	7343	X Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 47uF 1311 20% ESR=70mOhms AEC-Q200 T591B476M006ATE070 KEMET 1: $1.18 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 $1.18 $0.601 $0.55 $0.464 $0.437 Reel $0.414 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 10V 150uF 7343 20% ESR=25mOhms AEC-Q200 T598V157M010ATE025 KEMET 1: $3.25 2,520In Stock	Mfr. Part No. T598V157M010ATE025 Mouser Part No 80-T598V157M10ATE025	KEMET	Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=25mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	2,520In Stock	Cut Tape $3.25 $2.27 $1.88 $1.76 $1.56 Reel $1.49 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	150 uF	10 VDC	SMD/SMT	20 %	2917	25 mOhms	150 uA	1.9 mm	- 55 C	+ 125 C	7343	V Case	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 2312 20% ESR=15mOhms T520C337M2R5ATE015 KEMET 1: $1.83 4,070In Stock	Mfr. Part No. T520C337M2R5ATE015 Mouser Part No 80-T520C337M2R5ATE15	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 2312 20% ESR=15mOhms Learn More about KEMET t520caps	Datasheet	4,070In Stock	Cut Tape $1.83 $1.25 $1.01 $0.928 Reel $0.799 MouseReel Available	Min.: 1 Mult.: 1 : 500	330 uF	2.5 VDC	SMD/SMT	20 %	2312	15 mOhms	82.5 uA	2.5 mm	- 55 C	+ 105 C	6032	C Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 22uF 1380 20% ESR=70mOhms AEC-Q200 T598B226M010ATE070 KEMET 1: $1.37 7,364In Stock	Mfr. Part No. T598B226M010ATE070 Mouser Part No 80-T598B226M010ATE70	KEMET	Tantalum Capacitors - Polymer 10V 22uF 1380 20% ESR=70mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	7,364In Stock	Cut Tape $1.37 $0.712 $0.654 $0.556 $0.526 Reel $0.50 MouseReel Available	Min.: 1 Mult.: 1 Max.: 8,000 : 2,000	22 uF	10 VDC	SMD/SMT	20 %	1311	70 mOhms	22 uA	1.9 mm	- 55 C	+ 125 C	3528	B Case	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=25mOhms AEC-Q200 T598D157M010ATE025 KEMET 1: $2.09 2,519In Stock	Mfr. Part No. T598D157M010ATE025 Mouser Part No 80-T598D157M10ATE025	KEMET	Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=25mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	2,519In Stock	Cut Tape $2.09 $1.44 $1.20 $1.08 Reel $0.913 MouseReel Available	Min.: 1 Mult.: 1 : 500	150 uF	10 VDC	SMD/SMT	20 %	2917	25 mOhms	150 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 1311 20% ESR=35mOhms T520B337M2R5ANE035 KEMET 1: $6.12 1,820In Stock	Mfr. Part No. T520B337M2R5ANE035 Mouser Part No 80-T520B337M2R5ANE35	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 1311 20% ESR=35mOhms Learn More about KEMET t520caps	Datasheet	1,820In Stock	Cut Tape $6.12 $4.29 $3.69 $3.24 View Reel $2.27 $3.03 $2.90 $2.27 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	330 uF	2.5 VDC	SMD/SMT	20 %	1210	35 mOhms	82.5 uA	1.9 mm	- 55 C	+ 105 C	3528	B Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 4V 220uF 2917 20% ESR=7mOhms T520V227M004ATE007 KEMET 1: $2.59 1,876In Stock	Mfr. Part No. T520V227M004ATE007 Mouser Part No 80-T520V227M4ATE007	KEMET	Tantalum Capacitors - Polymer 4V 220uF 2917 20% ESR=7mOhms Learn More about KEMET t520caps	Datasheet	1,876In Stock	Cut Tape $2.59 $1.78 $1.46 $1.36 $1.19 Reel $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	220 uF	4 VDC	SMD/SMT	20 %	2917	7 mOhms	88 uA	1.8 mm	- 55 C	+ 105 C	7343	V Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 7343 20% ESR=0.009Ohms AECQ2 T598D337M2R5ATE009 KEMET 1: $2.44 2,500In Stock	Mfr. Part No. T598D337M2R5ATE009 Mouser Part No 80-T598D337M2R5ATE09	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 7343 20% ESR=0.009Ohms AECQ2 Learn More about KEMET t598series capacitors	Datasheet	2,500In Stock	Cut Tape $2.44 $1.67 $1.36 $1.27 Reel $1.20 MouseReel Available	Min.: 1 Mult.: 1 : 500	330 uF	2.5 VDC	SMD/SMT	20 %	2917	9 mOhms	82.5 mA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T598	AEC-Q200	Reel, Cut Tape, MouseReel