T521 High Voltage Polymer Tantalum Capacitors

KEMET T521 KO-CAP® High Voltage Organic Polymer Tantalum Capacitors feature voltage ratings up to 75V and capacitance values up to 470µF, high ripple current capability, safe failure mode, and low ESR. These T521 capacitors are volumetrically efficient and have stable temperature characteristics. They are lead-free when ordered with 100% Sn termination finish, RoHS compliant, and halogen-free. These components are designed for DC-DC converters, power supply inputs, and higher application voltages such as 12V, 24V, 28V, and 48V input rails. The T521 KO-CAP Series features a Ta anode and Ta₂O₅ dielectric as well as a conductive organic polymer that replaces the traditionally used MnO₂ as the cathode plate of the capacitor. This results in very low ESR and improved capacitance retention at high frequency.

Results: 275
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) 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 Packaging
KEMET Tantalum Capacitors - Polymer 35V 15uF 2917 20% ESR=125mOhms
3,950Expected 2026/04/09
Min.: 1
Mult.: 1
Reel: 1,000

15 uF 35 VDC SMD/SMT 20 % 2917 125 mOhms 52.5 uA 1.8 mm - 55 C + 125 C 7343 V Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 150uF 2912 20% E SR=50mOhms
3,495Expected 2026/05/05
Min.: 1
Mult.: 1
Reel: 1,000

150 uF 16 VDC SMD/SMT 20 % 2917 50 mOhms 240 uA 1.9 mm - 55 C + 105 C 7343 V Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 25V 22uF 2917 20% ESR=45mOhms
2,000On Order
Min.: 1
Mult.: 1
Reel: 1,000

22 uF 25 VDC SMD/SMT 20 % 2917 45 mOhms 55 uA 1.8 mm - 55 C + 105 C 7343 V Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 25V 33uF 20% ESR=60mOhms
6,000Expected 2026/05/26
Min.: 1
Mult.: 1
Reel: 3,000

33 uF 25 VDC SMD/SMT 20 % 2917 60 mOhms 82.5 uA - 55 C + 105 C 7343 V Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 63V 10uF 2917 20% ESR=50mOhms
2,401On Order
Min.: 1
Mult.: 1
Reel: 500

10 uF 63 VDC SMD/SMT 20 % 2917 50 mOhms 63 uA 4 mm - 55 C + 125 C 7343 X Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 75V 15uF 2917 20% ESR=35mOhms
1,889Expected 2026/07/30
Min.: 1
Mult.: 1
Reel: 2,000

15 uF 75 VDC SMD/SMT 20 % 2917 35 mOhms 112.5 uA 4 mm - 55 C + 125 C 7343 X Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 35V 47uF 20% ESR=30mOhms
3,959Expected 2026/09/01
Min.: 1
Mult.: 1
Reel: 2,000

47 uF 35 VDC SMD/SMT 20 % 2917 30 mOhms 164.5 uA 4 mm - 55 C + 125 C 7343 X Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 470uF 20% 20mOhms -55C/+125C
2,450On Order
Min.: 1
Mult.: 1
Reel: 500

470 uF 16 VDC SMD/SMT 20 % 2815 20 mOhms 752 uA 4 mm - 55 C + 125 C 7343 X Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 470uF 20% 20mOhms -55C/+125C
2,118On Order
Min.: 1
Mult.: 1
Reel: 500

470 uF 16 VDC SMD/SMT 20 % 2815 20 mOhms 752 uA 4 mm - 55 C + 125 C 7343 X Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 50V 33uF 2917 20% ESR=75mOhms
2,495On Order
Min.: 1
Mult.: 1
Reel: 500
No
33 uF 50 VDC SMD/SMT 20 % 2917 75 mOhms 165 uA 4 mm - 55 C + 125 C 7343 X Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 50V 18uF 2917 20% ESR=90mOhms
450Expected 2026/04/23
Min.: 1
Mult.: 1
Reel: 500

18 uF 50 VDC SMD/SMT 20 % 2917 90 mOhms 90 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 50V 5.6uF 2917 20% ESR=90mOhms
500Expected 2026/04/16
Min.: 1
Mult.: 1
Reel: 500

5.6 uF 50 VDC SMD/SMT 20 % 2917 90 mOhms 28 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 25V 22uF 2917 20% ESR=60mohms
1,197Expected 2026/07/09
Min.: 1
Mult.: 1
Reel: 1,000

22 uF 25 VDC SMD/SMT 20 % 2917 60 mOhms 55 uA 1.8 mm - 55 C + 105 C 7343 V Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 63V 4.7uF 2917 20% ESR=300mOhms 500Stock Available
Min.: 1
Mult.: 1
Reel: 500

4.7 uF 63 VDC SMD/SMT 20 % 2917 300 mOhms 29.6 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 47uF 2917 20% ESR=70mOhms Non-Stocked Lead-Time 25 Weeks
Min.: 1
Mult.: 1
Reel: 500

47 uF 16 VDC SMD/SMT 20 % 2917 70 mOhms 75.2 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 63V 1uF 1311 20% ESR=200mohms Non-Stocked Lead-Time 20 Weeks
Min.: 8,000
Mult.: 8,000
Reel: 8,000

1 uF 63 VDC SMD/SMT 20 % 1411 200 mOhms 6.3 uA 1.9 mm - 55 C + 105 C 3528 B Case T521 Reel
KEMET Tantalum Capacitors - Polymer 16V 10uF 1311 20% ESR=100mOhms Non-Stocked Lead-Time 20 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

10 uF 16 VDC SMD/SMT 20 % 1411 100 mOhms 16 uA 1.9 mm - 55 C + 125 C 3528 B Case T521 Reel
KEMET Tantalum Capacitors - Polymer 25V 10uF 1311 20% ESR=100mOhms Non-Stocked Lead-Time 20 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

10 uF 25 VDC SMD/SMT 20 % 1411 100 mOhms 25 uA 1.9 mm - 55 C + 125 C 3528 B Case T521 Reel
KEMET Tantalum Capacitors - Polymer 16V 22uF 1311 20% ESR=90mOhms Non-Stocked Lead-Time 20 Weeks
Min.: 8,000
Mult.: 8,000
Reel: 8,000

22 uF 16 VDC SMD/SMT 20 % 1411 90 mOhms 35.2 uA 1.9 mm - 55 C + 105 C 3528 B Case T521 SSD Reel
KEMET Tantalum Capacitors - Polymer 16V 22uF 1311 20% ESR=70mOhms Non-Stocked Lead-Time 20 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000
22 uF SMD/SMT 20 % - 55 C + 105 C T521 Reel
KEMET Tantalum Capacitors - Polymer 25V 22uF 3528 20% Non-Stocked Lead-Time 31 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

22 uF 25 VDC SMD/SMT 20 % 1311 55 uA 1.9 mm - 55 C + 125 C 3528 B Coded T521 Reel
KEMET Tantalum Capacitors - Polymer 50V 3.3uF 1311 20% ESR=280mOhms Non-Stocked Lead-Time 20 Weeks
Min.: 8,000
Mult.: 8,000
Reel: 8,000

3.3 uF 50 VDC SMD/SMT 20 % 1311 280 mOhms 16.5 uA 1.9 mm - 55 C + 105 C 3528 B Case T521 Reel
KEMET Tantalum Capacitors - Polymer 35V 3.3uF 1311 20% ESR=200mohms Non-Stocked Lead-Time 20 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

3.3 uF 35 VDC SMD/SMT 20 % 1411 200 mOhms 11.6 uA 2.1 mm - 55 C + 105 C 3528 B Case T521 SSD Reel
KEMET Tantalum Capacitors - Polymer 35V 3.3uF 1311 20% ESR=150mOhms Non-Stocked Lead-Time 20 Weeks
Min.: 8,000
Mult.: 8,000
Reel: 8,000

3.3 uF 35 VDC SMD/SMT 20 % 1411 150 mOhms 11.6 uA 1.9 mm - 55 C + 105 C 3528 B Case T521 SSD Reel
KEMET Tantalum Capacitors - Polymer 20V 33uF ESR=100mOhms High Volt Non-Stocked Lead-Time 20 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

33 uF 20 VDC SMD/SMT 20 % 1411 100 mOhms 1.9 mm - 55 C 3528 B Code T521 Reel