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 16V 33uF 1311 20% ESR=70mOhms 1,888In Stock
2,000Expected 16/04/2026
Min.: 1
Mult.: 1
Reel: 2,000

33 uF 16 VDC SMD/SMT 20 % 1311 70 mOhms 52.8 uA 2.1 mm - 55 C + 105 C 3528 B Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 20V 33uF 20% ESR=90mOhms 1,770In Stock
Min.: 1
Mult.: 1
Reel: 2,000

33 uF SMD/SMT 20 % - 55 C + 105 C T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 35V 4.7uF 1311 20% ESR=200mohms 1,582In Stock
Min.: 1
Mult.: 1
Reel: 2,000

4.7 uF 35 VDC SMD/SMT 20 % 1411 200 mOhms 16.5 uA 2.1 mm - 55 C + 105 C 3528 B Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 47uF 20% 55mOhms -55C/+125C 399In Stock
10,000On Order
Min.: 1
Mult.: 1
Reel: 2,000

47 uF 16 VDC SMD/SMT 20 % 1311 55 mOhms 75.2 uA 1.9 mm - 55 C + 125 C 3528 B Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 35V 6.8uF 1311 20% ESR=150mOhms 1,364In Stock
2,000Expected 04/06/2026
Min.: 1
Mult.: 1
Reel: 2,000

6.8 uF 35 VDC SMD/SMT 20 % 1411 150 mOhms 23.8 uA 2.1 mm - 55 C + 105 C 3528 B Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 35V 6.8uF 1311 20% ESR=200mohms 1,425In Stock
Min.: 1
Mult.: 1
Reel: 2,000

6.8 uF 35 VDC SMD/SMT 20 % 1411 200 mOhms 23.8 uA 1.9 mm - 55 C + 105 C 3528 B Case T521 SSD Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 63V 4.7uF 20% ESR=200mOhms 245In Stock
500Expected 13/04/2026
Min.: 1
Mult.: 1
Reel: 500

4.7 uF 63 VDC SMD/SMT 20 % 2312 200 mOhms 29.6 uA 2.8 mm - 55 C + 105 C 6032 C Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=90mOhms 2In Stock
1,000Expected 09/04/2026
Min.: 1
Mult.: 1
Reel: 500

10 uF 50 VDC SMD/SMT 20 % 2917 90 mOhms 50 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 50V 10uF 2917 20% ESR=90mOhms 1,418In Stock
18,500On Order
Min.: 1
Mult.: 1
Reel: 500

10 uF 50 VDC SMD/SMT 20 % 2917 90 mOhms 50 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 100uF 2917 20% ESR=50mOhms 99In Stock
7,800On Order
Min.: 1
Mult.: 1
Reel: 500

100 uF 16 VDC SMD/SMT 20 % 2917 50 mOhms 160 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 25V 100uF 7343 ESR=50mOhms 20% 525In Stock
4,000On Order
Min.: 1
Mult.: 1
Reel: 500

100 uF 25 VDC SMD/SMT 20 % 2917 50 mOhms 250 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 25V 100uF 2917 20% ESR=60mOhms 43In Stock
3,000On Order
Min.: 1
Mult.: 1
Reel: 500

100 uF 25 VDC SMD/SMT 20 % 2917 60 mOhms 250 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 150uF 20% ESR=40mOhms 367In Stock
500Expected 16/07/2026
Min.: 1
Mult.: 1
Reel: 500

150 uF 16 VDC SMD/SMT 20 % 2917 40 mOhms 240 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 16V 150uF 2917 20% ESR=50mOhms 101In Stock
1,000Expected 22/09/2026
Min.: 1
Mult.: 1
Reel: 500

150 uF 16 VDC SMD/SMT 20 % 2917 50 mOhms 240 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 20V 150uF 2917 20% ESR=50mOhms 5In Stock
6,500On Order
Min.: 1
Mult.: 1
Reel: 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
KEMET Tantalum Capacitors - Polymer 20V 150uF 2917 20% ESR=65mOhms 7In Stock
2,500Expected 30/04/2026
Min.: 1
Mult.: 1
Reel: 500

150 uF 20 VDC SMD/SMT 20 % 2917 65 mOhms 300 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 25V 150uF 20% 7343-31 -55 /+125C ESR=40mOhms 51In Stock
4,990On Order
Min.: 1
Mult.: 1
Reel: 500

150 uF 25 VDC SMD/SMT 20 % 2917 40 mOhms 375 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 35V 22uF 2917 20% ESR=40mOhms 6In Stock
500Expected 09/04/2026
Min.: 1
Mult.: 1
Reel: 500

22 uF 35 VDC SMD/SMT 20 % 2917 40 mOhms 77 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 25V 33uF 2917 20% ESR=40mOhms 498In Stock
Min.: 1
Mult.: 1
Reel: 500

33 uF 25 VDC SMD/SMT 20 % 2917 40 mOhms 82.5 uA 2.8 mm - 55 C + 105 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 35V 33uF 2917 20% ESR=65mohms 5In Stock
27,500On Order
Min.: 1
Mult.: 1
Reel: 500

33 uF 35 VDC SMD/SMT 20 % 2917 65 mOhms 115.5 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 63V 4.7uF 2917 20% ESR=75mOhms 1,239In Stock
1,500On Order
Min.: 1
Mult.: 1
Reel: 500

4.7 uF 63 VDC SMD/SMT 20 % 2917 75 mOhms 29.6 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 20V 47uF 2917 20% ESR=40mOhms 5In Stock
1,000Expected 07/07/2026
Min.: 1
Mult.: 1
Reel: 500

47 uF 20 VDC SMD/SMT 20 % 2917 40 mOhms 94 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=70mOhms 96In Stock
Min.: 1
Mult.: 1
Reel: 500

5.6 uF 50 VDC SMD/SMT 20 % 2917 70 mOhms 28 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 50V 6.8uF 2917 20% ESR=70mOhms 10In Stock
Min.: 1
Mult.: 1
Reel: 500

6.8 uF 50 VDC SMD/SMT 20 % 2917 70 mOhms 34 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel
KEMET Tantalum Capacitors - Polymer 63V 6.8uF 2917 20% ESR=75mOhms 3,814In Stock
1,500Expected 16/04/2026
Min.: 1
Mult.: 1
Reel: 500

6.8 uF 63 VDC SMD/SMT 20 % 2917 75 mOhms 42.8 uA 2.8 mm - 55 C + 125 C 7343 D Case T521 Reel, Cut Tape, MouseReel