KEMET 4.7μF MnO2 Tantalum Capacitor 10V dc, T491 Series

RS Stock No.:
Mfr. Prt No.:

Technical Reference

Legislation and Compliance

RoHS Certificate of Compliance

RS Components
RoHS Certificate of Compliance

EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.

Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.

RS definition of RoHS Compliance:

  • The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
  • and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering

The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:

PBB (Polybrominated Biphenyls)0.1%
PBDE ( Polybrominated Diphenyl Ethers)0.1%
Hexavalent Chromium0.1%
DEHP (Bis (2-Ethylhexl) phthalate)0.1%
BBP (Benzyl butyl phthalate)0.1%
DBP (Dibutyl phthalate)0.1%
DIBP (Diisobutyl phthalate)0.1%

The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".

RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.

Compliant Product Details
RS stock number 8015429
Product description KEMET 4.7μF MnO2 Tantalum Capacitor 10V dc, T491 Series
Manufacturer / Brand KEMET
Manufacturer part number T491A475K010AT

RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK

Statement of Conformity

RS Components
Statement of Conformity

This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.

Compliant Product Details
RS stock number 8015429
Product description KEMET 4.7μF MnO2 Tantalum Capacitor 10V dc, T491 Series
Manufacturer / Brand KEMET
Manufacturer part number T491A475K010AT

The foregoing information relates to product sold on, or after, the date shown below.


Date Sep 29, 2023

RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132

Product Details

T491 Series

KEMET T491 Series tantalum surface mount capacitors, designed specifically for automated surface mount processes and equipment. The T491 combines KEMET’s proven solid tantalum technology, with the latest in materials, processes and automation, resulting in highly efficient and reliable capacitors. The T491 series terminations are 100% matte tin and provide excellent wetting characteristics and compatibility with surface mount solder systems.


Black band on body indicates positive terminal.

Symmetrical, compliant terminations
Laser-marked case
Halogen free epoxy
Low profile case sizes
RoHS Compliant and lead-free terminations



Attribute Value
Capacitance 4.7 µF
Length 3.2 mm
Package/Case A
Equivalent Series Resistance 5 Ω
Dielectric Material Family Tantalum
Series T491
Mounting Type Surface Mount
Height 1.6 mm
Dimensions 3.2 x 1.6 x 1.6 mm
Technology MnO2
Maximum Operating Temperature +125 °C
Voltage 10 V dc
Electrolyte Type Solid
Tolerance Plus +10 %
Leakage Current 0.5 μA
Depth 1.6 mm
Minimum Operating Temperature -55 °C
Tolerance Minus -10 %
Tolerance ±10 %
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