Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO2 Series
Overview
The KEMET T491 Series, designed specifically for today’s highly
automated surface mount processes and equipment, is the
leading choice for surface mount designs. The T491 combines
KEMET’s proven solid tantalum technology, acclaimed and
respected throughout the world, with the latest in materials,
processes and automation, resulting in unsurpassed total
performance and value.
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 Series. 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.
The T491 standard terminations are 100% matte tin and provide
excellent wetting characteristics and compatibility with today's
surface mount solder systems. Tin/lead (Sn/Pb) 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 with 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 provides perfect
compatibility with all tape-fed placement units.
Benefits
Applications
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Typical applications include decoupling and filtering in industrial
and automotive end applications such as DC/DC converters,
portable electronics, telecommunications, and control units.
Meets or exceeds EIA Standard 535BAAC
Taped and reeled per EIA 481–1
Symmetrical, compliant terminations
Optional gold-plated terminations
Laser-marked case
100% surge current test on C, D, E, U, V, X sizes
Halogen free epoxy
Capacitance 0.1 µF to 1,000 µF
Tolerance ±10%, ±20%
Voltage 2.5 – 50 VDC
Extended range values
Low profile case sizes
RoHS Compliant and lead-free terminations
(See www.kemet.com for transition information)
• Operating temperature: -55ºC to +125ºC
Environmental Compliance
RoHS Compliant (6/6) according to Directive 2002/95/EC when ordered with 100% Sn solder.
One world. One KEMET
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
T2005_T491 • 10/8/2013
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