TANTALUM CHIP CAPACITORS
PRODUCT DESCRIPTION
KEMET’s family of solid tantalum chip capacitors is
designed and manufactured with the demanding
requirements of surface mount technology in mind.
These devices extend the advantages of solid tan-
talum technology to today’s surface mount circuit
applications. Complementing multilayer ceramic chip
convenience with capacitance ratings through 1500
µF, tantalum chip capacitors permit circuit designers
to take full advantage of the benefits of surface mount
technology.
T491 Series — Industrial
The leading choice in today’s surface mount
designs is the KEMET T491 Series. This product
meets or exceeds the requirements of EIA standard
535BAAC. The physical outline and dimensions of
this series conform to this global standard.
Five low profile case sizes are available in the T491
family. The R/2012-12, S/3216-12 and T/3528-12
case sizes have a maximum height of 1.2 mm. The
U/6032-15 size has a maximum height of 1.5 mm,
and the V/7343-20 has a maximum height of 2.0 mm.
This product was designed specifically for today’s
highly automated surface mount processes and equip-
ment. This series uses the same proven solid tanta-
lum KEMET technology acclaimed and respected
throughout the world. Added to this is the latest in
materials, processes and automation which result in a
component unsurpassed worldwide in total perfor-
mance and value.
The standard terminations are 100% matte tin and
provide excellent wetting characteristics and compatibil-
ity with today’s surface mount solder systems. Tin-Lead
(SnPb) terminations are available upon request for any
part number. Gold-plated terminations are also available
for use with conductive epoxy attachment processes.
The symmetrical terminations offer total compliancy to
provide the thermal and mechanical stress relief
required in today’s technology. Lead frame attachments
to the tantalum pellet are made via a microprocessor-
controlled welding operation, and a high temperature
silver epoxy adhesive system.
Standard packaging of these devices is tape and
reel in accordance with EIA 481-1. This system pro-
vides perfect compatibility with all tape-fed
placement units.
T492 Series — Military
KEMET is approved to MIL-PRF-55365/8
(CWR11), Weibull failure rate “B” level or 0.1% fail-
ures per 1,000 hours, “C” level or 0.01% failures per
1,000 hours, and “D” level or 0.001% failures per
1,000 hours. This CWR11 product — designated as
KEMET’s T492 Series — is a precision-molded
device, with compliant leadframe terminations and
indelible laser marking. This is the military version of
the global IEC/EIA standard represented by
KEMET’s T491 Series. Tape and reeling per EIA
481-1 is standard.
T493 Series — Military - COTS
The T493 series is designed for the COTS
(Commercial-Off-The-Shelf) requirements of
military/aerospace applications. This series is a sur-
face mount tantalum product offering various lead-
frame surface finishes, Weibull grading and surge cur-
rent testing options. The full part number includes a
code defining the terminations, the Weibull reliability,
surge test conditions, and the ESR range. The possi-
ble terminations include gold plated, hot solder
dipped, solder plated, and solder fused. Reliability
grading of B level (0.1%/kHours) and C level
(0.01%/kHours) are available. Surge current testing
options include: 10 cycles at 25ºC, or 10-cycles at
-55ºC and +85ºC. Both standard and low ESR options
are available. All lots of this series are conditioned with
MIL-PRF-55365 Group A testing.
T494 Series — Low ESR, Industrial Grade
The T494 is a low ESR series that is available in all
the same case sizes and CV ratings as the popular
T491 series. The T494 offers low ESR performance
with the economy of an industrial grade device. This
series is targeted for output filtering and other applica-
tions that may benefit from improved efficiency due to
low ESR.
T495 Series — Low ESR, Surge Robust
The low ESR, surge robust T495 series is an impor-
tant member of KEMET’s tantalum chip family.
Designed primarily for output filtering in switch-mode
power supplies and DC-to-DC converters, the standard
CV T495 values are also an excellent choice for battery-
to-ground input filter applications.
This series builds upon proven technology used for
industrial grade tantalum chip capacitors to offer sev-
eral important advantages: very low ESR, high ripple
current capability, excellent capacitance stability, plus
improved ability to withstand high inrush currents.
These benefits are achieved through a combination of
proprietary design, material, and process parameters,
as well as high-stress, low impedance electrical con-
ditioning performed prior to screening. Capacitance
values range from 4.7µF to 1000µF, in voltage ratings
from 2.5 to 50 volts.
T496 Series — Fused
KEMET also offers a “fail-safe” fused solid tantalum
chip capacitor. The built-in fuse element provides
excellent protection from damaging short circuit condi-
tions in applications where high fault currents exist.
Protection from costly circuit damage due to reversed
installation is offered with this device. Package sizes
include the EIA standard 3528-12, 6032-15, 7343-31,
and 7343-43 case size. Capacitance values range from
0.15 µF to 470.0 µF, in voltage ratings from 4 to 50.
Standard capacitance tolerances include ±20% and
±10%. Tape and reeling per EIA 481-1 is standard.
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