Tantalum Capacitors
Tantalum capacitors are the leading choice when high capacitance is needed in the smallest possible size.
KEMET has been the foremost manufacturer of tantalum capacitors for over 50 years, and is constantly introducing
new innovations to meet changing demands. Offered in a variety of standard sizes, KEMET tantalum capacitors
are fully RoHS-compliant and compatible with modern solder processes including multiple Pb-Free reflow passes.
KEMET tantalum capacitors offer many advantages including low ESR, surge current robustness and multiple
operating temperature ranges. KEMET also offers a complete line of military and Commercial-Off-The-Shelf (COTS)
products as well as enhanced testing for space applications. While many applications use surface mount
technology, a complete line of through-hole tantalum capacitors are available for down-hole, military and other
demanding environments.
KEMET’s traditional MnO2 tantalum capacitors consist of a sintered anode of tantalum metal. This anode is porous,
thus providing increased surface area. An oxide layer is then formed, and this oxide layer becomes the capacitor
dielectric. The oxidized anode is impregnated with manganese dioxide to form the cathode.
Tantalum polymer capacitors are a newer variation which replaces the manganese dioxide cathode with a
solid conductive polymer cathode. KEMET polymer tantalum capacitors are recommended when very low ESR,
increased temperature stability, or benign failure mode is critical.
Tantalum Surface Mount Products
High Reliability
MIL-PRF
(CWR Series)
Commercial-Off-The-
Shelf COTS)
Standard Tantalum
T491 Commercial
High Temperature
T498 150°C Rated
T499 175°C Rated
Low ESR
Fused
Automotive Grade
T491 Commercial
T493 Military/
Aerospace COTS/Low
ESR Option CWR11
Case Sizes
T409 CWR09 Style
MIL-PRF-55365/4
T496 Series
MnO2
Polymer
T497 High Grade COTS
CWR09/19/29
Case Sizes
T520 105°C
Rated Polymer
(≥6 mΩ)
T494 Commercial
(≥80 mΩ)
T489 Low Leakage
Commercial
T419 CWR19 Style
MIL-PRF-55365/11
T494 Commercial
(≥80 mΩ)
T521
High Voltage Polymer
(≥25 mΩ)
T495 Surge Robust
(≥30 mΩ)
T429 CWR29 Style
MIL-PRF-55365/8
T540 Polymer COTS
T489 Low Leakage
T522
Low Leakage
Polymer
T510
High Capacitance
(≥10 mΩ)
T541 Polymer
COTS Multiple
Anode
T492 CWR11 Style
MIL-PRF-55365/8
T495 Surge Robust
(≥30 mΩ)
T525 125°C
Rated Polymer
(≥25 mΩ)
Tantalum Stack
MnO2 (TSM)
T498 150°C Rated
T499 175°C Rated
T528 Low ESL
Facedown Terminal
Polymer (≥5 mΩ)
T530 High Capacitance
125°C Rated Polymer
(≥4 mΩ)
T510 Multiple Anode
Low ESR MnO2
T525 125°C Rated
Polymer (≥25 mΩ)
Tantalum Stack
Polymer (TSP)
Tantalum Through-Hole Products
Hermetically Sealed
Radial Dipped
Molded Axial
Molded Radial
T35X Series
Standard Radial
Dipped
T32X Series
CX01/05 Style
MIL-PRF-49137/1 & 5
Polar T110/T140
Series CSR13
Case Sizes
T330/T340
Series Standard
Molded Radial
DSCC Drawings
T363/T369
Series CX02/12
Style MIL-PRF-49137/2
Polar T2XX Series
CSR/CSS Style
MIL-PRF-39003
T370 Series
CX06 Case Sizes
T495 - DSCC Drawing 95158E
T496 - DSCC Drawing 04053A
T525 - DSCC Drawing 04051
T530 - DSCC Drawing 04052
T37X Series
CX06 Style
MIL-PRF-49137/6
Miniature T222
Series CSR09 Style
MIL-PRF-39003/2
T368 Series
High Capacitance
GR500
High Reliability Series
T396/T398 Series
“Fail Safe” Insertion
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