594D686X0010C2T Datasheet, PDF (11/21 Pages) Vishay Siliconix – Solid Tantalum Chip Capacitors, TANTAMOUNT®, Conformal Coated, Maximum CV, Low ESR

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SOLID ELECTROLYTE TANTALUM CAPACITORS
Solid electrolyte capacitors contain manganese dioxide,
which is formed on the tantalum pentoxide dielectric layer
by impregnating the pellet with a solution of manganous
nitrate. The pellet is then heated in an oven, and the
manganous nitrate is converted to manganese dioxide.
The pellet is next coated with graphite, followed by a layer
of metallic silver, which provides a conductive surface
between the pellet and the can in which it will be enclosed.
After assembly, the capacitors are tested and inspected to
assure long life and reliability. It offers excellent reliability
and high stability for consumer and commercial electronics
with the added feature of low cost.
Surface mount designs of “Solid Tantalum” capacitors use
lead frames or lead frameless designs as shown in the
accompanying drawings.
TANTALUM CAPACITORS FOR ALL DESIGN
CONSIDERATIONS
Solid electrolyte designs are the least expensive for a given
rating and are used in many applications where their very
small size for a given unit of capacitance is of importance.
They will typically withstand up to about 10 % of the rated
DC working voltage in a reverse direction. Also important
are their good low temperature performance characteristics
and freedom from corrosive electrolytes.
Vishay Sprague patented the original solid electrolyte
capacitors and was the first to market them in 1956. Vishay
Sprague has the broadest line of tantalum capacitors and
has continued its position of leadership in this field. Data
sheets covering the various types and styles of Vishay
Sprague capacitors for consumer and entertainment
electronics, industry, and military applications are available
where detailed performance characteristics must be
specified.
TYPE 195D, 572D, 591D, 592D/W, 594D,
595D, 695D, T95
Cathode Termination
(Silver + Ni/Sn/Plating)
Encapsulation
Anode Termination
(Silver + Ni/Sn/Plating)
MnO₂ /Carbon/Silver
Coating
Sintered Tantalum
Pellet _{Sponge Teflon/Epoxy Tower}
TYPE 597D/T97/13008
Cathode Termination
(Silver + Ni/Sn/Plating)
Encapsulation
Anode Termination
(Silver + Ni/Sn/Plating)
Conformal Coated Guide
Vishay Sprague
TYPE 194D
SnPb or Gold Plated Ni Cathode
End Cap Termination
Encapsulation
Cathode
Backfill
SnPb or Gold Plated Ni Anode
End Cap Termination
Conductive Silver
Epoxy Adhesive
Sintered Tantalum
Pellet
MnO₂/Carbon/
Silver Coating
Sponge Teflon
Anode Backfill
TYPE T96
Intermediate
Cathode
Silver
Fuse
Cathode Termination
(Silver + Ni/Sn or
Ni/SnPb Plating)
Encapsulation
Anode Termination
(Silver + Ni/Sn or
Ni/SnPb Plating)
MnO₂/Carbon/
Silver Coating
Epoxy Tower/
Sponge Teflon
Sintered Tantalum
Pellet
TYPE T98
Intermediate
Cathode
Silver
Fuse
Cathode Termination
(Silver + Ni/Sn or
Ni/SnPb Plating)
Encapsulation
MnO₂/Carbon/
Silver Coating
Epoxy Tower/
Anode Termination
Sponge Teflon
(Silver + Ni/Sn or _{Sintered Tantalum}
Ni/SnPb Plating)
Pellet
MnO₂/Carbon/Silver
Coating
Sintered Tantalum
Pellet
Silver Epoxy
Sponge Teflon/Epoxy Tower
Revision: 23-Jul-13
2
Document Number: 40150
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