Standard MnO2 Tantalum Surface Mount Capacitors
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.
Benefits
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.
Applications
• Meets or Exceeds EIA Standard 535BAAC
• Taped and Reeled per EIA 481-1
• Symmetrical, Compliant Terminations
• Optical Gold-Plated Terminations
• Laser-marked Case
• 100% Surge current test on C, D, E, U, V, X sizes
• Halogen Free Epoxy
• Capacitance: 0:1µF to 1000µF
• Tolerance: ±10%, ±20%
• Voltage: 2.5-50 VDC
• Extended Range Values
• Low Profile Case Sizes
• RoHS Compliance & Lead Free Terminations
(See www.kemet.com for transition information)
• Operating Temperature: -55ºC to +125ºC
Typical applications include decoupling and filtering in industrial
and automotive end applications such as DC/DC converters,
portable electronics, telecommunications, and control units.
Environmental Compliance
RoHS Compliant (6/6)* according to Directive 2002/95/EC
*When ordered with 100% Sn Solder
SPICE
For a detailed analysis of specific part numbers, please visit kemet.com for a free download of KEMET's SPICE software. The KEMET
SPICE program is freeware intended to aid design engineers in analyzing the performance of these capacitors over frequency,
temperature, ripple, and DC bias conditions.
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T2005-1 • 5/18/2011
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