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 (CAD) 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 20V 150uF 2917 20% ESR=50mOhms T521D157M020ATE050 KEMET 1: $7.42 3,817In Stock 4,000Expected 2027-04-12	Mfr. Part # T521D157M020ATE050 Mouser Part # 80-T521D157M020ATE50	KEMET	Tantalum Capacitors - Polymer 20V 150uF 2917 20% ESR=50mOhms Learn More about KEMET t521 caps	Datasheet	3,817In Stock 4,000Expected 2027-04-12	Cut Tape $7.42 $5.37 $4.55 $4.29 Reel $3.84 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,000 : 500	150 uF	20 VDC	SMD/SMT	20 %	2917	50 mOhms	300 uA	2.8 mm	- 55 C	+ 105 C	7343	D Case	T521		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 25V 150uF 20% 7343-31 -55 /+125C ESR=50mOhms T521D157M025ATE050 KEMET 1: $4.58 1,702In Stock 5,000On Order New At Mouser	Mfr. Part # T521D157M025ATE050 Mouser Part # 80-T521D157M25ATE050 New At Mouser	KEMET	Tantalum Capacitors - Polymer 25V 150uF 20% 7343-31 -55 /+125C ESR=50mOhms Learn More about KEMET t521 caps	Datasheet	1,702In Stock 5,000On Order On Order Ship Dates Mfr. #: T521D157M025ATE050 Stock: 1,702 Can Ship Immediately On Order: 500 Expected 2026-12-03 1,500 Expected 2026-12-31 3,000 Expected 2027-05-06 Factory Lead-Time: 43 Weeks	Cut Tape $4.58 $3.31 $2.87 $2.52 Reel $2.23 $1.99 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,000 : 500	150 uF	25 VDC	SMD/SMT	20 %	2917	50 mOhms	375 uA	2.8 mm	- 55 C	+ 125 C	7343	D Case	T521		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 22uF 1206 20% ESR=80mOhms T520A226M010ANE080 KEMET 1: $3.15 4,251In Stock	Mfr. Part # T520A226M010ANE080 Mouser Part # 80-T520A226M10ANE080	KEMET	Tantalum Capacitors - Polymer 10V 22uF 1206 20% ESR=80mOhms Learn More about KEMET t520caps	Datasheet	4,251In Stock	Cut Tape $3.15 $2.15 $1.74 $1.61 View Reel $1.28 $1.40 $1.33 $1.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	22 uF	10 VDC	SMD/SMT	20 %	1206	80 mOhms	22 uA	1.6 mm	- 55 C	+ 105 C	3216	A Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 330uF 2312 20% ESR=15mOhms T520C337M2R5ATE015 KEMET 1: $2.64 4,070In Stock	Mfr. Part # T520C337M2R5ATE015 Mouser Part # 80-T520C337M2R5ATE15	KEMET	Tantalum Capacitors - Polymer 2.5V 330uF 2312 20% ESR=15mOhms Learn More about KEMET t520caps	Datasheet	4,070In Stock	Cut Tape $2.64 $1.80 $1.45 $1.34 Reel $1.15 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: $1.97 7,364In Stock	Mfr. Part # T598B226M010ATE070 Mouser Part # 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 $1.97 $1.03 $0.942 $0.801 $0.757 Reel $0.72 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: $3.01 2,522In Stock	Mfr. Part # T598D157M010ATE025 Mouser Part # 80-T598D157M10ATE025	KEMET	Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=25mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	2,522In Stock	Cut Tape $3.01 $2.07 $1.73 $1.56 Reel $1.31 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 63V 15 uF AEC-Q200 20% ESR=75mOhms AEC-Q200 T598X156M063ATE075 KEMET 1: $7.73 2,265In Stock	Mfr. Part # T598X156M063ATE075 Mouser Part # 80-T598X156M63ATE075	KEMET	Tantalum Capacitors - Polymer 63V 15 uF AEC-Q200 20% ESR=75mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	2,265In Stock	Cut Tape $7.73 $5.63 $4.78 $4.52 Reel $4.06 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,000 : 500	15 uF	63 VDC	SMD/SMT	20 %	2917	75 mOhms	94.5 uA		- 55 C	+ 125 C	7343	X Case	T598	AEC-Q200	Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 150uF 2917 20% ESR=15mOhms T520D157M006ATE015 KEMET 1: $2.75 5,477In Stock	Mfr. Part # T520D157M006ATE015 Mouser Part # 80-T520D157M6E15	KEMET	Tantalum Capacitors - Polymer 6.3V 150uF 2917 20% ESR=15mOhms Learn More about KEMET t520caps	Datasheet	5,477In Stock	Cut Tape $2.75 $1.84 $1.48 $1.37 Reel $1.14 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: $3.79 5,358In Stock	Mfr. Part # T521D106M050ATE120 Mouser Part # 80-T521D106M50ATE120	KEMET	Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=120mOhms Learn More about KEMET t521 caps	Datasheet	5,358In Stock	Cut Tape $3.79 $2.61 $2.13 $1.99 Reel $1.86 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: $1.74 4,709In Stock	Mfr. Part # T598B335M035ATE150 Mouser Part # 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 $1.74 $0.886 $0.811 $0.685 Reel $0.664 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 33uF 1206 20% ESR=80mOhms T520A336M006ATE080 KEMET 1: $1.54 7,872In Stock	Mfr. Part # T520A336M006ATE080 Mouser Part # 80-T520A336M006	KEMET	Tantalum Capacitors - Polymer 6.3V 33uF 1206 20% ESR=80mOhms Learn More about KEMET t520caps	Datasheet	7,872In Stock	Cut Tape $1.54 $0.772 $0.704 $0.59 $0.556 Reel $0.526 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	33 uF	6.3 VDC	SMD/SMT	20 %	1206	80 mOhms	20.79 uA	1.6 mm	- 55 C	+ 105 C	3216	A Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 2.5V 100uF 1311 20% ESR=40mOhms T520B107M2R5ATE040 KEMET 1: $1.94 10,454In Stock	Mfr. Part # T520B107M2R5ATE040 Mouser Part # 80-T520B107M2R5	KEMET	Tantalum Capacitors - Polymer 2.5V 100uF 1311 20% ESR=40mOhms Learn More about KEMET t520caps	Datasheet	10,454In Stock	Cut Tape $1.94 $1.00 $0.922 $0.782 $0.74 Reel $0.685 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	100 uF	2.5 VDC	SMD/SMT	20 %	1311	40 mOhms	25 uA	1.9 mm	- 55 C	+ 105 C	3528	B Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 8V 47uF 1311 20% ESR=35mOhms T520B476M008ATE035 KEMET 1: $2.19 8,832In Stock	Mfr. Part # T520B476M008ATE035 Mouser Part # 80-T520B476M8ATE35	KEMET	Tantalum Capacitors - Polymer 8V 47uF 1311 20% ESR=35mOhms Learn More about KEMET t520caps	Datasheet	8,832In Stock	Cut Tape $2.19 $1.15 $1.06 $0.903 $0.854 Reel $0.814 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	47 uF	8 VDC	SMD/SMT	20 %	1311	35 mOhms	37.6 uA	1.9 mm	- 55 C	+ 105 C	3528	B Case	T520		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=45mOhms T545V227M010ATE045 KEMET 1: $4.67 1,865In Stock	Mfr. Part # T545V227M010ATE045 Mouser Part # 80-T545V227M10ATE045	KEMET	Tantalum Capacitors - Polymer 10V 220uF 2917 20% ESR=45mOhms Learn More about KEMET ssd ko cap polymer capacitors	Datasheet	1,865In Stock	Cut Tape $4.67 $3.25 $2.69 $2.52 $2.23 Reel $2.22 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	220 uF	10 VDC	SMD/SMT	20 %	2917	45 mOhms	220 uA	1.9 mm	- 55 C	+ 105 C	7343	V Case	T545		Reel, Cut Tape, MouseReel
Tantalum Capacitors - Polymer 6.3V 330uF 20% ESR=15mOhms T520D337M006ATE0157280 KEMET 1: $3.18 2,467In Stock	Mfr. Part # T520D337M006ATE0157280 Mouser Part # 80-T520D337M06ATE015	KEMET	Tantalum Capacitors - Polymer 6.3V 330uF 20% ESR=15mOhms Learn More about KEMET t520caps	Datasheet	2,467In Stock	Cut Tape $3.18 $2.25 $1.93 $1.68 View Reel $1.22 $1.47 $1.33 $1.22 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 6.3V 47uF 1311 20% ESR=70mOhms AEC-Q200 T591B476M006ATE070 KEMET 1: $1.70 4,090In Stock	Mfr. Part # T591B476M006ATE070 Mouser Part # 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 $1.70 $0.865 $0.792 $0.668 $0.629 Reel $0.596 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: $4.68 2,542In Stock	Mfr. Part # T598V157M010ATE025 Mouser Part # 80-T598V157M10ATE025	KEMET	Tantalum Capacitors - Polymer 10V 150uF 7343 20% ESR=25mOhms AEC-Q200 Learn More about KEMET t598series capacitors	Datasheet	2,542In Stock	Cut Tape $4.68 $3.27 $2.71 $2.53 $2.25 Reel $2.15 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 1000uF 2917 20% ESR=30mOhms T520D108M2R5ATE030 KEMET 1: $4.10 2,598In Stock	Mfr. Part # T520D108M2R5ATE030 Mouser Part # 80-T520D108M2R5ATE30	KEMET	Tantalum Capacitors - Polymer 2.5V 1000uF 2917 20% ESR=30mOhms Learn More about KEMET t520caps	Datasheet	2,598In Stock	Cut Tape $4.10 $2.84 $2.33 $2.17 Reel $1.90 MouseReel Available	Min.: 1 Mult.: 1 : 500	1 mF	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: $2.19 3,000In Stock	Mfr. Part # T520T227M004ATE025 Mouser Part # 80-T520T227M004ATE25	KEMET	Tantalum Capacitors - Polymer 4Volt 220uF 2912 20% ESR=25mOhms Learn More about KEMET t520caps	Datasheet	3,000In Stock	Cut Tape $2.19 $1.15 $1.05 $0.90 $0.852 Reel $0.851 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: $5.90 1,256In Stock	Mfr. Part # T521V685M050ATE070 Mouser Part # 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 $5.90 $4.19 $3.51 $3.31 $2.95 Reel $2.94 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 4V 220uF 7343-20 12mOhms 20% Harsh Env T591V227M004ATE012 KEMET 1: $4.06 700In Stock New Product	Mfr. Part # T591V227M004ATE012 Mouser Part # 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 $4.06 $2.89 $2.49 $2.19 Reel $1.74 View $1.94 $1.64 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 12mOhms 20% AEC-Q200 T598V337M2R5ATE012 KEMET 1: $4.49 700In Stock New Product	Mfr. Part # T598V337M2R5ATE012 Mouser Part # 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 $4.49 $3.25 $2.81 $2.48 Reel $1.96 View $2.19 $1.86 $1.77 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 4V 220uF 2917 20% ESR=7mOhms T520V227M004ATE007 KEMET 1: $3.73 1,876In Stock	Mfr. Part # T520V227M004ATE007 Mouser Part # 80-T520V227M4ATE007	KEMET	Tantalum Capacitors - Polymer 4V 220uF 2917 20% ESR=7mOhms Learn More about KEMET t520caps	Datasheet	1,876In Stock	Cut Tape $3.73 $2.56 $2.10 $1.96 $1.71 Reel $1.63 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: $3.51 2,500In Stock	Mfr. Part # T598D337M2R5ATE009 Mouser Part # 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 $3.51 $2.40 $1.96 $1.83 Reel $1.73 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
Tantalum Capacitors - Polymer 16V 68uF 20% ESR=50mOhms T520D686M016ATE0507280 KEMET 1: $4.67 3,595In Stock 2,500Expected 2026-11-30	Mfr. Part # T520D686M016ATE0507280 Mouser Part # 80-T520D686M16ATE050	KEMET	Tantalum Capacitors - Polymer 16V 68uF 20% ESR=50mOhms Learn More about KEMET t520caps	Datasheet	3,595In Stock 2,500Expected 2026-11-30	Cut Tape $4.67 $3.47 $3.00 $2.64 View Reel $2.19 $2.32 $2.19 $2.19 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