Tantalum Surface Mount Capacitors Standard Tantalum
T491 Industrial Grade MnO
2
Overview
The KEME T T491, designed specifically for today s highly
time at 30C/85% RH. The T491 standard terminations are
automated surface mount processes and equipment, is
available in 100% matte tin and provide excellent wetting
the leading choice for surface mount designs. The T491
characteristics and compatibility with today's surface mount
combines KEME Ts proven solid tantalum technology,
solder systems. Tin/lead (Sn/Pb) terminations are available
acclaimed and respected throughout the world, with the
upon request for any part number. Gold-plated terminations
latest in materials, processes and automation, resulting
are also available for use with conductive epoxy attachment
in unsurpassed total performance and value. This product
processes. Standard packaging of these devices is Tape
meets or exceeds the requirements of EIA standard & Reel in accordance with EIA 481. This system provides
535BAAC. The T491 is classified as moisture sensitivity perfect compatibility with all tape-fed placement units.
level (MSL) 1 under J STD 020, with unlimited floor life
Benefits
Meets or exceeds EIA Standard 535BAAC
Taped and reeled per EIA-481
Symmetrical, compliant terminations
Optional gold-plated terminations
Laser-marked case
100% surge current test on C, D, E, U, V, and X sizes
Halogen free epoxy
Capacitance 0.1 to 1,000 F
Tolerance 10%, 20%
Voltage 2.5 50 VDC
Extended range values
L ow p r o fi l e c as e sizes
RoHS compliant and lead-free terminations
O p e r a ti n g te m p e r a t u r e r a n g e of 5 5 C to +125 C
Applications
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, Gold-plated or Non-magnetic
100% Sn solder.
One world. One KEMET
KEMET Electronics Corporation KEMET Tower One East Broward Boulevard T2005_T491 8/20/2018 1
Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.comTantalum Surface Mount Capacitors Standard Tantalum
T491 Industrial Grade MnO
2
K-SIM
For a detailed analysis of specific par t numbers, please visit ksim.kemet.com to access KEME Ts K-SIM software. KEME T
K-SIM is designed to simulate behavior of components with respect to frequency, ambient temperature, and DC bias levels.
Ordering Information
T 491 X 157 K 020 A T
Rated
Capacitor Case Capacitance Capacitance Failure Rate/ Packaging
Series Voltage Termination Finish
Class Size Code (pF) Tolerance Design (C-Spec)
(VDC)
T = Industrial A, B, First two digits K = 10% 2R5 = 2.5 A = T = 100% Matte tin (Sn)-plated Blank = 7" reel
Tantalum C, D, represent M = 20% 003 = 3 N/A H = Standard solder coated 7280 = 13" reel
E, M, s ig n i fi c an t 004 = 4 (SnPb 5% Pb minimum)
S, T, fi g u r e s . T h i r d 006 = 6.3 G = Gold-plated
U, V, d i g i t s p e c i fi e s 010 = 10 (A, B, C, D, X only)
W, X number of 016 = 16 N = Non-magnetic 100% tin (Sn)
zeros. 020 = 20 M = Non-magnetic (SnPb)
025 = 25
035 = 35
050 = 50
Performance Characteristics
Item Performance Characteristics
Operating Temperature 5 5 C t o 12 5 C
Rated Capacitance Range 0.1 1, 0 0 0 F a t 12 0 H z / 2 5 C
Capacitance Tolerance K tolerance (10%), M tolerance (20%)
Rated Voltage Range 2.5 50 V
DF (120 Hz) R e f e r t o P a r t N u m b e r E l e c t r i c a l S p e c i fi c a t i o n Ta b l e
ESR (100 kHz) R e f e r t o P a r t N u m b e r E l e c t r i c a l S p e c i fi c a t i o n Ta b l e
Leakage Current 0.0 1 C V ( A ) a t r a t e d v o l t a g e a f t e r 5 m i n u t e s
KEMET Electronics Corporation KEMET Tower One East Broward Boulevard T2005_T491 8/20/2018 22
Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.com