1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
One world. One KEMET
Benets
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, X sizes
Halogen-free epoxy
Capacitance values of 0.1 to 470 µF
Tolerances of ±10% and ±20%
Voltage rating of 6.3 – 50 VDC
Extended range values
• Lowprolecasesizes
RoHS compliant and lead-free terminations
• Operatingtemperaturerangeof−55°Cto+125°C
Overview
TheKEMETT491,designedspecically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 T491
conformtothisglobalstandard.Fivelowprolescase
sizesareavailableThisseriesisclassiedasmoisture
sensitivity level (MSL) 1 under J STD 020, with unlimited
oorlifetimeat≤30°C/85%RH.TheT491standard
terminations are available in 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 for today's technology.
Standard packaging of these devices is Tape & Reel in
accordance with EIA 481. This system provides perfect
compatibility with all tape-fed placement units.
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Applications
Typicalapplicationsincludedecouplingandlteringin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.
Click image above for interactive 3D content
Open PDF in Adobe Reader for full functionality
2© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
2
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
K-SIM
Foradetailedanalysisofspecicpartnumbers,pleasevisitksim.kemet.comtoaccessKEMET’sK-SIMsoftware.KEMET
K-SIM is designed to simulate behavior of components with respect to frequency, ambient temperature, and DC bias levels.
Ordering Information
T491 X157 K020 A T AUTO
Capacitor
Class Series
Case
Size
Capacitance
Code (pF)
Capacitance
Tolerance
Rated
Voltage
(VDC)
Failure
Rate/
Design Termination Finish C-Spec 1 Packaging
(C-Spec)
T =
Tantalum
Industrial A
B
C
D
E
S
T
U
V
X
First two
digits
represent
signicant
gures.Third
digitspecies
number of
zeros.
K = ±10%
M = ±20%
2R5 = 2.5
003 = 3
004 = 4
006 = 6.3
010 = 10
016 = 16
020 = 20
025 = 25
035 = 35
050 = 50
A =
N/A
T = 100% Matte tin (Sn)-plated
H = Standard solder coated
(SnPb 5% Pb minimum)
G = Gold-plated (A, B, C, D, X only)
N = Non-magnetic 100% tin (Sn)
M = Non-magnetic (SnPb)
AUTO =
Automotive
grade
AUTO =
AEC–Q200
certication
Blank = 7"
reel
7280 = 13"
reel
Performance Characteristics
Item Performance Characteristics
Operating Temperature −55°Cto125°C
Rated Capacitance Range 0.1–470µFat120Hz/25°C
Capacitance Tolerance K tolerance (10%), M tolerance (20%)
Rated Voltage Range 6.3 – 50 V
DF (120 Hz) RefertoPartNumberElectricalSpecicationTable
ESR (100 kHz) RefertoPartNumberElectricalSpecicationTable
Leakage Current ≤0.01CV(µA)atratedvoltageafter5minutes
3© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
3
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Qualication
Test Condition Characteristics
Endurance 85°Catratedvoltage,2,000hours
125°Cat2/3ratedvoltage,2,000hours
ΔC/C Within ±10% of initial value
DF Within initial limits
DCL Within 1.25 x initial limit
ESR Within initial limits
Storage Life 125°Cat0volts,2,000hours
ΔC/C Within ±10% of initial value
DF Within initial limits
DCL Within 1.25 x initial limit
ESR Within initial limits
Thermal Shock MIL–STD–202, Method 107, Condition B, mounted,
−55°Cto125°C,1,000cycles
ΔC/C Within ±5% of initial value
DF Within initial limits
DCL Within 1.25 x initial limit
ESR Within initial limits
Temperature Stability
Extreme temperature exposure at a
successionofcontinuousstepsat+25°C,
−55°C,+25°C,+85°C,+125°C,+25°C.
+25°C −5C +85°C +125°C
ΔC/C IL* ±10% ±10% ±20%
DF IL IL 1.5 x IL 1.5 x IL
DCL IL N/A 10 x IL 12 x IL
Surge Voltage 85°C,1.32xratedvoltage1,000cycles
(125°C,1.2xratedvoltage).
ΔC/C Within ±5% of initial value
DF Within initial limits
DCL Within initial limits
ESR Within initial limits
Mechanical Shock/
Vibration
MIL–STD202, Method 213, Condition I, 100 G peak
MIL–STD202, Method 204, Condition D, 10 Hz to
2,000 Hz, 20 G peak
ΔC/C Within ±10% of initial value
DF Within initial limits
DCL Within initial limits
*IL = Initial limit
Certication
KEMET’sInternalQualicationPlanforthisTantalumseriesofcapacitorsfollowsAEC–Q200guidelines.Standardcatalog
parttypesorderedwithoutaspecicautomotivedesignator,i.e.,suxAUTOorfourdigitcustomerspecicdesignator
(C-Spec), are not considered KEMET automotive grade tantalum capacitors.
4© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
4
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Electrical Characteristics
1
10
100
1,000
100 1,000 10,000 100,000 1,000,000 10,000,000
Capacitance (µF)
Frequency (Hz)
T491C336M025AT
T491D476M025AT
T491X107M025AT
0.01
0.1
1
10
100
100 1,000 10,000 100,000 1,000,000 10,000,000
Impedance, ESR (Ohms)
Frequency (Hz)
T491C336M025AT_IMP
T491D476M025AT_IMP
T491X107M025AT_IMP
T491C336M025AT_ESR
T491D476M025AT_ESR
T491X107M025AT_ESR
Capacitance vs. Frequency
ESR vs. Frequency
Dimensions – Millimeters (Inches)
Metric will govern
H
X
T
B
B
G
F
E
A
L
R
P
SIDE VIEW
ANODE (+) END VIEW BOTTOM VIEW
CATHODE (-) END VIEW
W
S
S
Termination cutout
at KEMET's option,
either end
Case Size Component
KEMET EIA L W H F ±0.1
±(0.004)
S
(Ref)
X
(Ref)
P
(Ref)
R
(Ref)
T
(Ref)
A
(Min)
G
(Ref)
E
(Ref)
A3216–18 3.0.2
(0.126±0.008) 1.6±0.2
(0.060.008) 1.6±0.2
(0.060.008) 1.2
(0.047) 0.80(0.032)+0.2
(0.008)/−0.3(0.011) 0.4
(0.016) 0.10±0.10
(0.000.004) 0.4
(0.016) 0.4
(0.016) 0.13
(0.005) 1.2
(0.047) 1.1
(0.043) 1.3
(0.051)
B
3528–21
3.5±0.2
(0.138±0.008) 2.8±0.2
(0.110±0.008) 1.9±0.2
(0.075±0.008) 2.2
(0.087) 0.80(0.032)+0.1
(0.004)/−0.3(0.011) 0.4
(0.016) 0.10±0.10
(0.000.004) 0.5
(0.020) 1.0
(0.039) 0.13
(0.005) 1.9
(0.075) 1.8
(0.071) 2.2
(0.087)
C
6032–28
6.0±0.3
(0.236±0.012) 3.2±0.3
(0.126±0.012) 2.5±0.3
(0.090.012) 2.2
(0.087) 1.30 (0.051)
±0.3 (0.011) 0.5
(0.020) 0.10±0.10
(0.000.004) 0.9
(0.035) 1.0
(0.039) 0.13
(0.005) 2.9
(0.114) 2.8
(0.110) 2.4
(0.094)
D
7343–31
7.3±0.3
(0.287±0.012) 4.3±0.3
(0.169±0.012) 2.8±0.3
(0.110±0.012) 2.4
(0.094) 1.30 (0.051)
±0.3 (0.011) 0.5
(0.020) 0.10±0.10
(0.000.004) 0.9
(0.035) 1.0
(0.039) 0.13
(0.005) 3.6
(0.142) 3.5
(0.138) 3.5
(0.138)
X
7343–
43
7.3±0.3
(0.287±0.012) 4.3±0.3
(0.169±0.012) 4.0±0.3
(0.157±0.012) 2.4
(0.094) 1.30 (0.051)
±0.3 (0.011) 0.5
(0.020) 0.10±0.10
(0.000.004) 1.7
(0.067) 1.0
(0.039) 0.13
(0.005) 3.6
(0.142) 3.5
(0.138) 3.5
(0.138)
E7360-38 7.3±0.3
(0.287±0.012) 6.0±0.3
(0.236±0.012) 3.6±0.2
(0.142±0.008) 4.1
(0.161) 1.30 (0.051)
±0.3 (0.011) 0.5
(0.020) 0.10±0.10
(0.000.004) N/A N/A 0.13
(0.005) 3.6
(0.142) 3.5
(0.138) 3.5
(0.138)
S3216–12 3.0.2
(0.126±0.008) 1.6±0.2
(0.060.008) 1.2
(0.047) 1.2
(0.047) 0.80(0.032)+0.2
(0.008)/−0.3(0.011) N/A 0.05
(0.002) N/A N/A 0.13
(0.005) 1.2
(0.047) 1.1
(0.043) 1.3
(0.051)
T3528–12 3.5±0.2
(0.138±0.008) 2.8±0.2
(0.110±0.008) 1.2
(0.047) 2.2
(0.087) 0.80(0.032)+0.1
(0.004)/−0.3(0.011) N/A 0.05
(0.002) N/A N/A 0.13
(0.005) 1.9
(0.075) 1.8
(0.071) 2.2
(0.087)
U6032–15 6.0±0.3
(0.236±0.012) 3.2±0.2
(0.110±0.008) 1.5
(0.059) 2.2
(0.087) 1.30 (0.051)
±0.3 (0.011) N/A 0.05
(0.002) N/A N/A 0.13
(0.005) 2.9
(0.114) 2.8
(0.110) 2.4
(0.094)
V7343-20 7.3±0.3
(0.287±0.012) 4.3±0.3
(0.169±0.012) 2.0
(0.079) 2.4
(0.094) 1.30 (0.051)
±0.3 (0.011) N/A 0.05
(0.002) N/A N/A 0.13
(0.005) 3.6
(0.142) 3.5
(0.138) 3.5
(0.138)
Notes: (Ref) – Dimensions provided for reference only. For low prole cases, no dimensions are provided for B, P or R because these cases do not have a bevel or
a notch.
5© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
5
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Table 1 – Ratings & Part Number Reference
(1) To complete KEMET part number, insert M for ± 20% or K for ± 10%. Designates Capacitance tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn) Plated, G = Gold Plated, H = Standard Solder coated (SnPb 5% Pb minimum),
N = Non-Magnetic 100% Tin (Sn), M = Non-Magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional detail.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
Rated
Voltage
Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum ºC
44.7 A/3216-18 T491A475(1)004A(2)AUTO 0.5 6 8 125
410 A/3216-18 T491A106(1)004A(2)AUTO 0.5 64.5 125
433 B/3528-21 T491B336(1)004A(2)AUTO 1.3 62.5 125
447 A/3216-18 T491A476(1)004A(2)AUTO 1.9 10 2.5 125
447 C/6032-28 T491C476(1)004A(2)AUTO 1.9 61.6 125
468 C/6032-28 T491C686(1)004A(2)AUTO 2.7 61.5 125
4100 A/3216-18 T491A107M004A(2)AUTO 4.0 30 4.0 125
6.3 2.2 A/3216-18 T491A225(1)006A(2)AUTO 0.5 6 8 125
6.3 3.3 A/3216-18 T491A335(1)006A(2)AUTO 0.5 6 7 125
6.3 4.7 A/3216-18 T491A475(1)006A(2)AUTO 0.5 65.5 125
6.3 6.8 A/3216-18 T491A685(1)006A(2)AUTO 0.5 66.0 125
6.3 6.8 B/3528-21 T491B685(1)006A(2)AUTO 0.5 63.5 125
6.3 10 A/3216-18 T491A106(1)006A(2)AUTO 0.6 6 4 125
6.3 10 B/3528-21 T491B106(1)006A(2)AUTO 0.6 63.5 125
6.3 15 A/3216-18 T491A156(1)006A(2)AUTO 0.9 63.5 125
6.3 15 B/3528-21 T491B156(1)006A(2)AUTO 0.9 6 3 125
6.3 15 C/6032-28 T491C156(1)006A(2)AUTO 0.9 61.8 125
6.3 22 A/3216-18 T491A226(1)006A(2)AUTO 1.4 6 4 125
6.3 22 B/3528-21 T491B226(1)006A(2)AUTO 1.4 62.5 125
6.3 22 C/6032-28 T491C226(1)006A(2)AUTO 1.4 61.8 125
6.3 33 A/3216-18 T491A336(1)006A(2)AUTO 2.1 12 2.5 125
6.3 33 B/3528-21 T491B336(1)006A(2)AUTO 2.1 62.2 125
6.3 33 C/6032-28 T491C336(1)006A(2)AUTO 2.1 61.6 125
6.3 47 A/3216-18 T491A476(M)006A(2)AUTO 3.0 12 3.5 125
6.3 47 B/3528-21 T491B476(1)006A(2)AUTO 3.0 6 2 125
6.3 47 C/6032-28 T491C476(1)006A(2)AUTO 3.0 61.5 125
6.3 47 D/7343-31 T491D476(1)006A(2)AUTO 3.0 60.8 125
6.3 68 A/3216-18 T491A686(1)006A(2)AUTO 4.3 30 4125
6.3 68 B/3528-21 T491B686(1)006A(2)AUTO 4.3 80.9 125
6.3 68 C/6032-28 T491C686(1)006A(2)AUTO 4.3 61.2 125
6.3 68 D/7343-31 T491D686(1)006A(2)AUTO 4.3 60.8 125
6.3 100 B/3528-21 T491B107(1)006A(2)AUTO 6.3 15 3.0 125
6.3 100 C/6032-28 T491C107(1)006A(2)AUTO 6.3 80.9 125
6.3 100 D/7343-31 T491D107(1)006A(2)AUTO 6.3 80.8 125
6.3 150 C/6032-28 T491C157(1)006A(2)AUTO 9.5 81.2 125
6.3 150 D/7343-31 T491D157(1)006A(2)AUTO 9.5 80.7 125
6.3 220 C/6032-28 T491C227(1)006A(2)AUTO 14 10 1125
6.3 220 D/7343-31 T491D227(1)006A(2)AUTO 14 80.7 125
6.3 220 X/7343-43 T491X227(1)006A(2)AUTO 14 80.7 125
6.3 330 D/7343-31 T491D337(1)006A(2)AUTO 20.8 80.4 125
6.3 330 X/7343-43 T491X337(1)006A(2)AUTO 20.8 80.4 125
6.3 330 E/7360-38 T491E337(1)006A(2)AUTO 20.8 80.5 125
6.3 470 X/7343-43 T491X477(1)006A(2)AUTO 29.6 10 0.4 125
6.3 470 E/7360-38 T491E477(1)006A(2)AUTO 29.6 10 0.4 125
10 1A/3216-18 T491A105(1)010A(2)AUTO 0.5 410 125
10 1.5 A/3216-18 T491A155(1)010A(2)AUTO 0.5 6 8 125
10 2.2 A/3216-18 T491A225(1)010A(2)AUTO 0.5 6 7 125
10 2.2 B/3528-21 T491B225(1)010A(2)AUTO 0.5 63.5 125
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum
ºC
Rated Voltage Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
6© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
6
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Rated
Voltage
Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum ºC
10 3.3 A/3216-18 T491A335(1)010A(2)AUTO 0.5 65.5 125
10 4.7 A/3216-18 T491A475(1)010A(2)AUTO 0.5 65.0 125
10 4.7 B/3528-21 T491B475(1)010A(2)AUTO 0.5 63.5 125
10 6.8 A/3216-18 T491A685(1)010A(2)AUTO 0.7 6 4 125
10 6.8 B/3528-21 T491B685(1)010A(2)AUTO 0.7 63.5 125
10 10 A/3216-18 T491A106(1)010A(2)AUTO 1.0 63.8 125
10 10 B/3528-21 T491B106(1)010A(2)AUTO 1.0 6 3 125
10 10 C/6032-28 T491C106(1)010A(2)AUTO 1.0 61.8 125
10 15 A/3216-18 T491A156(1)010A(2)AUTO 1.5 8 6 125
10 15 B/3528-21 T491B156(1)010A(2)AUTO 1.5 62.5 125
10 15 C/6032-28 T491C156(1)010A(2)AUTO 1.5 61.8 125
10 22 A/3216-18 T491A226(1)010A(2)AUTO 2.2 83.2 125
10 22 B/3528-21 T491B226(1)010A(2)AUTO 2.2 62.3 125
10 22 C/6032-28 T491C226(1)010A(2)AUTO 2.2 61.6 125
10 33 B/3528-21 T491B336(1)010A(2)AUTO 3.3 61.8 125
10 33 C/6032-28 T491C336(1)010A(2)AUTO 3.3 61.5 125
10 33 D/7343-31 T491D336(1)010A(2)AUTO 3.3 60.8 125
10 47 B/3528-21 T491B476(1)010A(2)AUTO 4.7 8 1 125
10 47 C/6032-28 T491C476(1)010A(2)AUTO 4.7 61.2 125
10 47 D/7343-31 T491D476(1)010A(2)AUTO 4.7 60.8 125
10 68 B/3528-21 T491B686(1)010A(2)AUTO 6.8 81.0 125
10 68 C/6032-28 T491C686(1)010A(2)AUTO 6.8 61.2 125
10 68 D/7343-31 T491D686(1)010A(2)AUTO 6.8 60.8 125
10 100 B/3528-21 T491B107(1)010A(2)AUTO 10.0 15 1.2 125
10 100 C/6032-28 T491C107(1)010A(2)AUTO 10.0 81.2 125
10 100 D/7343-31 T491D107(1)010A(2)AUTO 10.0 80.7 125
10 150 C/6032-28 T491C157(1)010A(2)AUTO 15.0 10 0.9 125
10 150 D/7343-31 T491D157(1)010A(2)AUTO 15.0 80.7 125
10 150 X/7343-43 T491X157(1)010A(2)AUTO 15.0 80.7 125
10 220 D/7343-31 T491D227(1)010A(2)AUTO 22.0 80.5 125
10 220 X/7343-43 T491X227(1)010A(2)AUTO 22.0 80.5 125
10 330 D/7343-31 T491D337(1)010A(2)AUTO 33 10 0.5 125
10 330 X/7343-43 T491X337(1)010A(2)AUTO 33 10 0.5 125
10 330 E/7360-38 T491E337(1)010A(2)AUTO 33 10 0.5 125
10 470 X/7343-43 T491X477(1)010A(2)AUTO 47 10 0.2 125
16 1A/3216-18 T491A105(1)016A(2)AUTO 0.5 410 125
16 1.5 A/3216-18 T491A155(1)016A(2)AUTO 0.5 6 8 125
16 2.2 A/3216-18 T491A225(1)016A(2)AUTO 0.5 6 6 125
16 3.3 A/3216-18 T491A335(1)016A(2)AUTO 0.5 6 5 125
16 3.3 B/3528-21 T491B335(1)016A(2)AUTO 0.5 63.5 125
16 4.7 A/3216-18 T491A475(1)016A(2)AUTO 0.8 6 4 125
16 4.7 B/3528-21 T491B475(1)016A(2)AUTO 0.8 63.5 125
16 4.7 C/6032-28 T491C475(1)016A(2)AUTO 0.8 62.4 125
16 6.8 A/3216-18 T491A685(1)016A(2)AUTO 1.1 63.5 125
16 6.8 B/3528-21 T491B685(1)016A(2)AUTO 1.1 62.5 125
16 6.8 C/6032-28 T491C685(1)016A(2)AUTO 1.1 61.9 125
16 10 A/3216-18 T491A106(1)016A(2)AUTO 1.6 8 7 125
16 10 B/3528-21 T491B106(1)016A(2)AUTO 1.6 62.5 125
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum
ºC
Rated Voltage Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
Table 1 – Ratings & Part Number Reference cont'd
(1) To complete KEMET part number, insert M for ± 20% or K for ± 10%. Designates Capacitance tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn) Plated, G = Gold Plated, H = Standard Solder coated (SnPb 5% Pb minimum),
N = Non-Magnetic 100% Tin (Sn), M = Non-Magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional detail.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
7© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
7
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Rated
Voltage
Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum ºC
16 10 C/6032-28 T491C106(1)016A(2)AUTO 1.6 61.8 125
16 15 B/3528-21 T491B156(1)016A(2)AUTO 2.4 6 2 125
16 15 C/6032-28 T491C156(1)016A(2)AUTO 2.4 61.6 125
16 22 B/3528-21 T491B226(1)016A(2)AUTO 3.5 62.2 125
16 22 C/6032-28 T491C226(1)016A(2)AUTO 3.5 61.5 125
16 22 D/7343-31 T491D226(1)016A(2)AUTO 3.5 60.8 125
16 33 B/3528-21 T491B336(1)016A(2)AUTO 5.3 6 2 125
16 33 C/6032-28 T491C336(1)016A(2)AUTO 5.3 61.2 125
16 33 D/7343-31 T491D336(1)016A(2)AUTO 5.3 60.8 125
16 47 C/6032-28 T491C476(1)016A(2)AUTO 7.5 61.2 125
16 47 D/7343-31 T491D476(1)016A(2)AUTO 7.5 60.8 125
16 68 C/6032-28 T491C686(1)016A(2)AUTO 11 6 1 125
16 68 D/7343-31 T491D686(1)016A(2)AUTO 11 60.7 125
16 100 C/6032-28 T491C107(1)016A(2)AUTO 16.0 10 1.0 125
16 100 D/7343-31 T491D107(1)016A(2)AUTO 16.0 80.7 125
16 100 X/7343-43 T491X107(1)016A(2)AUTO 16.0 80.7 125
16 150 X/7343-43 T491X157(1)016A(2)AUTO 24.0 80.5 125
20 0.68 A/3216-18 T491A684(1)020A(2)AUTO 0.5 412 125
20 1A/3216-18 T491A105(1)020A(2)AUTO 0.5 4 9 125
20 1.5 A/3216-18 T491A155(1)020A(2)AUTO 0.5 66.5 125
20 2.2 A/3216-18 T491A225(1)020A(2)AUTO 0.5 6 6 125
20 2.2 B/3528-21 T491B225(1)020A(2)AUTO 0.5 63.5 125
20 3.3 A/3216-18 T491A335(1)020A(2)AUTO 0.7 6 4 125
20 3.3 B/3528-21 T491B335(1)020A(2)AUTO 0.7 6 3 125
20 4.7 A/3216-18 T491A475(1)020A(2)AUTO 0.9 6 4 125
20 4.7 B/3528-21 T491B475(1)020A(2)AUTO 0.9 6 3 125
20 4.7 C/6032-28 T491C475(1)020A(2)AUTO 0.9 62.4 125
20 6.8 A/3216-18 T491A685(1)020A(2)AUTO 1.4 8 6 125
20 6.8 B/3528-21 T491B685(1)020A(2)AUTO 1.4 62.5 125
20 6.8 C/6032-28 T491C685(1)020A(2)AUTO 1.4 61.9 125
20 10 B/3528-21 T491B106(1)020A(2)AUTO 2.0 6 2 125
20 10 C/6032-28 T491C106(1)020A(2)AUTO 2.0 61.6 125
20 15 C/6032-28 T491C156(1)020A(2)AUTO 3.0 61.7 125
20 15 D/7343-31 T491D156(1)020A(2)AUTO 3.0 6 1 125
20 22 D/7343-31 T491D226(1)020A(2)AUTO 4.4 60.8 125
20 33 C/6032-28 T491C336(1)020A(2)AUTO 6.6 61.2 125
20 33 D/7343-31 T491D336(1)020A(2)AUTO 6.6 60.8 125
20 47 C/6032-28 T491C476(1)020A(2)AUTO 9.4 60.9 125
20 47 D/7343-31 T491D476(1)020A(2)AUTO 9.4 60.7 125
20 47 X/7343-43 T491X476(1)020A(2)AUTO 9.4 60.8 125
20 68 X/7343-43 T491X686(1)020A(2)AUTO 13.6 60.7 125
20 100 E/7360-38 T491E107(1)020A(2)AUTO 20.0 80.5 125
25 0.33 A/3216-18 T491A334(1)025A(2)AUTO 0.5 415 125
25 0.47 A/3216-18 T491A474(1)025A(2)AUTO 0.5 413 125
25 0.68 A/3216-18 T491A684(1)025A(2)AUTO 0.5 410 125
25 1A/3216-18 T491A105(1)025A(2)AUTO 0.5 4 8 125
25 1B/3528-21 T491B105(1)025A(2)AUTO 0.5 4 5 125
25 1.5 A/3216-18 T491A155(1)025A(2)AUTO 0.5 6 7 125
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum
ºC
Rated Voltage Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
Table 1 – Ratings & Part Number Reference cont'd
(1) To complete KEMET part number, insert M for ± 20% or K for ± 10%. Designates Capacitance tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn) Plated, G = Gold Plated, H = Standard Solder coated (SnPb 5% Pb minimum),
N = Non-Magnetic 100% Tin (Sn), M = Non-Magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional detail.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
8© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
8
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Rated
Voltage
Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum
ºC
25 1.5 B/3528-21 T491B155(1)025A(2)AUTO 0.5 6 5 125
25 2.2 A/3216-18 T491A225(1)025A(2)AUTO 0.6 6 7 125
25 2.2 B/3528-21 T491B225(1)025A(2)AUTO 0.6 64.5 125
25 2.2 C/6032-28 T491C225(1)025A(2)AUTO 0.6 63.5 125
25 3.3 A/3216-18 T491A335(1)025A(2)AUTO 0.8 6 7 125
25 3.3 B/3528-21 T491B335(1)025A(2)AUTO 0.8 63.5 125
25 3.3 C/6032-28 T491C335(1)025A(2)AUTO 0.8 62.5 125
25 4.7 C/6032-28 T491C475(1)025A(2)AUTO 1.2 62.3 125
25 6.8 B/3528-21 T491B685(1)025A(2)AUTO 1.7 62.8 125
25 6.8 C/6032-28 T491C685(1)025A(2)AUTO 1.7 61.9 125
25 6.8 D/7343-31 T491D685(1)025A(2)AUTO 1.7 61.2 125
25 10 C/6032-28 T491C106(1)025A(2)AUTO 2.5 61.5 125
25 10 D/7343-31 T491D106(1)025A(2)AUTO 2.5 6 1 125
25 15 C/6032-28 T491C156(1)025A(2)AUTO 3.8 61.5 125
25 15 D/7343-31 T491D156(1)025A(2)AUTO 3.8 6 1 125
25 22 C/6032-28 T491C226(1)025A(2)AUTO 5.5 6 1 125
25 22 D/7343-31 T491D226(1)025A(2)AUTO 5.5 60.8 125
25 33 C/6032-28 T491C336(1)025A(2)AUTO 8.3 60.9 125
25 33 D/7343-31 T491D336(1)025A(2)AUTO 8.3 60.7 125
25 33 X/7343-43 T491X336(1)025A(2)AUTO 8.3 60.7 125
25 47 D/7343-31 T491D476(1)025A(2)AUTO 11.8 60.7 125
25 47 X/7343-43 T491X476(1)025A(2)AUTO 11.8 60.7 125
25 68 X/7343-43 T491X686(1)025A(2)AUTO 17.0 60.7 125
35 0.1 A/3216-18 T491A104(1)035A(2)AUTO 0.5 420 125
35 0.15 A/3216-18 T491A154(1)035A(2)AUTO 0.5 419 125
35 0.22 A/3216-18 T491A224(1)035A(2)AUTO 0.5 418 125
35 0.33 A/3216-18 T491A334(1)035A(2)AUTO 0.5 415 125
35 0.47 A/3216-18 T491A474(1)035A(2)AUTO 0.5 411 125
35 0.47 B/3528-21 T491B474(1)035A(2)AUTO 0.5 4 8 125
35 0.68 A/3216-18 T491A684(1)035A(2)AUTO 0.5 4 8 125
35 0.68 B/3528-21 T491B684(1)035A(2)AUTO 0.5 46.5 125
35 1A/3216-18 T491A105(1)035A(2)AUTO 0.5 4 7 125
35 1B/3528-21 T491B105(1)035A(2)AUTO 0.5 4 5 125
35 1.5 B/3528-21 T491B155(1)035A(2)AUTO 0.5 6 5 125
35 1.5 C/6032-28 T491C155(1)035A(2)AUTO 0.5 64.5 125
35 2.2 A/3216-18 T491A225(1)035A(2)AUTO 0.8 64.0 125
35 2.2 B/3528-21 T491B225(1)035A(2)AUTO 0.8 64.0 125
35 2.2 C/6032-28 T491C225(1)035A(2)AUTO 0.8 63.2 125
35 3.3 B/3528-21 T491B335(1)035A(2)AUTO 1.2 63.5 125
35 3.3 C/6032-28 T491C335(1)035A(2)AUTO 1.2 62.4 125
35 4.7 B/3528-21 T491B475(1)035A(2)AUTO 1.6 6 3 125
35 4.7 C/6032-28 T491C475(1)035A(2)AUTO 1.6 6 2 125
35 4.7 D/7343-31 T491D475(1)035A(2)AUTO 1.6 61.5 125
35 6.8 D/7343-31 T491D685(1)035A(2)AUTO 2.4 61.2 125
35 6.8 V/7343-20 T491V685(1)035A(2)AUTO 2.4 61.2 125
35 10 C/6032-28 T491C106(1)035A(2)AUTO 3.5 61.6 125
35 10 D/7343-31 T491D106(1)035A(2)AUTO 3.5 6 1 125
35 10 V/7343-20 T491V106(1)035A(2)AUTO 3.5 6 1 125
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum
ºC
Rated Voltage Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
Table 1 – Ratings & Part Number Reference cont'd
(1) To complete KEMET part number, insert M for ± 20% or K for ± 10%. Designates Capacitance tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn) Plated, G = Gold Plated, H = Standard Solder coated (SnPb 5% Pb minimum),
N = Non-Magnetic 100% Tin (Sn), M = Non-Magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional detail.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
9© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
9
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Table 1 – Ratings & Part Number Reference cont'd
(1) To complete KEMET part number, insert M for ± 20% or K for ± 10%. Designates Capacitance tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn) Plated, G = Gold Plated, H = Standard Solder coated (SnPb 5% Pb minimum),
N = Non-Magnetic 100% Tin (Sn), M = Non-Magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional detail.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
Rated
Voltage
Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum
ºC
35 15 D/7343-31 T491D156(1)035A(2)AUTO 5.3 60.8 125
35 15 X/7343-43 T491X156(1)035A(2)AUTO 5.3 60.9 125
35 22 D/7343-31 T491D226(1)035A(2)AUTO 7.7 60.7 125
35 22 X/7343-43 T491X226(1)035A(2)AUTO 7.7 60.7 125
35 33 D/7343-31 T491D336(1)035A(2)AUTO 11.6 60.6 125
35 33 X/7343-43 T491X336(1)035A(2)AUTO 11.6 60.6 125
35 47 X/7343-43 T491X476(1)035A(2)AUTO 16.5 60.6 125
35 47 E/7360-38 T491E476(1)035A(2)AUTO 16.5 10 0.5 125
50 0.1 A/3216-18 T491A104(1)050A(2)AUTO 0.5 420 125
50 0.15 A/3216-18 T491A154(1)050A(2)AUTO 0.5 415 125
50 0.15 B/3528-21 T491B154(1)050A(2)AUTO 0.5 416 125
50 0.22 A/3216-18 T491A224(1)050A(2)AUTO 0.5 418 125
50 0.22 B/3528-21 T491B224(1)050A(2)AUTO 0.5 414 125
50 0.33 B/3528-21 T491B334(1)050A(2)AUTO 0.5 410 125
50 0.47 B/3528-21 T491B474(1)050A(2)AUTO 0.5 4 9 125
50 0.47 C/6032-28 T491C474(1)050A(2)AUTO 0.5 47.2 125
50 0.68 B/3528-21 T491B684(1)050A(2)AUTO 0.5 4 8 125
50 0.68 C/6032-28 T491C684(1)050A(2)AUTO 0.5 46.4 125
50 1 C/6032-28 T491C105(1)050A(2)AUTO 0.5 44.8 125
50 1.5 C/6032-28 T491C155(1)050A(2)AUTO 0.8 64.4 125
50 1.5 D/7343-31 T491D155(1)050A(2)AUTO 0.8 63.5 125
50 2.2 D/7343-31 T491D225(1)050A(2)AUTO 1.1 62.5 125
50 3.3 D/7343-31 T491D335(1)050A(2)AUTO 1.7 61.6 125
50 4.7 D/7343-31 T491D475(1)050A(2)AUTO 2.4 61.2 125
50 6.8 D/7343-31 T491D685(1)050A(2)AUTO 3.4 60.8 125
50 6.8 X/7343-43 T491X685(1)050A(2)AUTO 3.4 60.8 125
50 22 X/7343-43 T491X226(1)050A(2)AUTO 11.0 10 0.6 125
VDC at 85ºC µF KEMET/EIA
(See below for
part options)
µA +20ºC
Maximum/5 Min
% at +20ºC
120 Hz Maximum
Ω at 20ºC
100 kHz Maximum
ºC
Rated Voltage Rated
Capacitance
Case Code/
Case Size KEMET Part Number DC
Leakage DF ESR
Maximum
Operating
Temp
10© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
10
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Recommended Voltage Derating Guidelines
−55°Cto85°C 85°Cto125°C
% Change in working DC
voltage with temperature
VR67% of VR
Recommended maximum
application voltage
50% of VR33% of VR
Ripple Current/Ripple Voltage
Permissible AC ripple voltage and current are related to
equivalent series resistance (ESR) and the power dissipation
capabilities of the device. Permissible AC ripple voltage
which may be applied is limited by two criteria:
1. The positive peak AC voltage plus the DC bias voltage,
if any, must not exceed the DC voltage rating of the
capacitor.
2. The negative peak AC voltage in combination with
bias voltage, if any, must not exceed the allowable limits
speciedforreversevoltage.SeetheReverseVoltage
section for allowable limits.
The maximum power dissipation by case size can be
determined using the table at right. The maximum power
dissipation rating stated in the table must be reduced with
increasing environmental operating temperatures. Refer to
the table below for temperature compensation requirements.
Temperature Compensation Multipliers
for Maximum Ripple Current
T≤25°C
T≤85°C
T≤125°C
1.00
0.90
0.40
T= Environmental Temperature
The maximum power dissipation rating must be reduced with increasing
environmental operating temperatures. Refer to the Temperature
Compensation Multiplier table for details.
KEMET Series
and Case Code
EIA
Case Code
Maximum Power
Dissipation (P max)
mWatts at 25°C
with +20°C Rise
A
3216–18
75
B
3528–21
85
C
6032–28
110
D
7343–31
150
X
7343–43
165
E
7360–38
200
S
3216–12
60
T
3528–12
70
U
6032–15
90
V
7343–20
125
T510X
7343–43
270
T510E
7360–38
285
Using the P max of the device, the maximum allowable rms
ripple current or voltage may be determined.
I(max) = √P max/R
E(max) = Z √P max/R
I = rms ripple current (amperes)
E = rms ripple voltage (volts)
P max = maximum power dissipation (watts)
R = ESR at specied frequency (ohms)
Z = Impedance at specied frequency (ohms)
0%
20%
40%
60%
80%
100%
120%
55 25 85 125
% Working Voltage
% Change in Working DC Voltage
with Temperature
Temperature (ºC)
67%
33%
Recommended Maximum
Application Voltage
(As % of Rated Voltage)
11© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
11
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Reverse Voltage
Solid tantalum capacitors are polar devices and may be permanently damaged or destroyed if connected with the wrong
polarity.Thepositiveterminalisidentiedonthecapacitorbodybyastripeplusinsomecasesabevelededge.Asmall
degree of transient reverse voltage is permissible for short periods per the table. The capacitors should not be operated
continuously in reverse mode, even within these limits.
Temperature Permissible Transient Reverse Voltage
25°C
15% of Rated Voltage
85°C
5% of Rated Voltage
125°C
1% of Rated Voltage
Table 2 – Land Dimensions/Courtyard
KEMET
Metric
Size
Code
Density Level A:
Maximum (Most) Land
Protrusion (mm)
Density Level B:
Median (Nominal) Land
Protrusion (mm)
Density Level C:
Minimum (Least) Land
Protrusion (mm)
Case EIA WL S V1 V2 WL S V1 V2 WL S V1 V2
A3216–18 1.35 2.20 0.62 6.02 2.80 1.23 1.80 0.82 4.92 2.30 1.13 1.42 0.98 4.06 2.04
B3528–21 2.35 2.21 0.92 6.32 4.00 2.23 1.80 1.12 5.22 3.50 2.13 1.42 1.28 4.36 3.24
C6032–28 2.35 2.77 2.37 8.92 4.50 2.23 2.37 2.57 7.82 4.00 2.13 1.99 2.73 6.96 3.74
D7343–31 2.55 2.77 3.67 10.22 5.60 2.43 2.37 3.87 9.12 5.10 2.33 1.99 4.03 8.26 4.84
E17360–38 3.25 2.77 3.67 10.22 7.30 3.13 2.37 3.87 9.12 6.80 3.03 1.99 4.03 8.26 6.54
S23216–12 1.35 2.20 0.62 6.02 2.80 1.23 1.80 0.82 4.92 2.30 1.13 1.42 0.98 4.06 2.04
T3528–12 2.35 2.20 0.92 6.32 4.00 2.23 1.80 1.12 5.22 3.50 2.13 1.42 1.28 4.36 3.24
U6032–15 2.35 2.77 2.37 8.92 4.50 2.23 2.37 2.57 7.82 4.00 2.13 1.99 2.73 6.96 3.74
V7343–21 2.55 2.77 3.67 10.22 5.60 2.43 2.37 3.87 9.12 5.10 2.33 1.99 4.03 8.26 4.84
X17343–43 2.55 2.77 3.67 10.22 5.60 2.43 2.37 3.87 9.12 5.10 2.33 1.99 4.03 8.26 4.84
Density Level A: For low-density product applications. Recommended for wave solder applications and provides a wider process window for reow
solder processes.
Density Level B: For products with a moderate level of component density. Provides a robust solder attachment condition for reow solder processes.
Density Level C: For high component density product applications. Before adapting the minimum land pattern variations the user should perform
qualication testing based on the conditions outlined in IPC standard 7351 (IPC–7351).
1 Height of these chips may create problems in wave soldering.
2 Land pattern geometry is too small for silkscreen outline.
L
S
W W
L
V1
V2
Grid Placement Courtyard
12© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
12
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Soldering Process
The KEMET families of surface mount capacitors are
compatible with wave (single or dual), convection, IR, or vapor
phasereowtechniques.Preheatingofthesecomponents
is recommended to avoid extreme thermal stress. KEMET's
recommendedproleconditionsforconvectionandIR
reowreecttheproleconditionsoftheIPC/J–STD–020D
standard for moisture sensitivity testing. The devices can
safelywithstandamaximumofthreereowpassesatthese
conditions.
Please note that although the X/7343–43 case size can
withstandwavesoldering,thetallprole(4.3mmmaximum)
dictates care in wave process development.
Hand soldering should be performed with care due to the
dicultyinprocesscontrol.Ifperformed,careshouldbe
taken to avoid contact of the soldering iron to the molded
case. The iron should be used to heat the solder pad, applying
solderbetweenthepadandthetermination,untilreow
occurs.Oncereowoccurs,theironshouldberemoved
immediately. “Wiping” the edges of a chip and heating the top
surface is not recommended.
Duringtypicalreowoperations,aslightdarkeningofthe
gold-colored epoxy may be observed. This slight darkening is
normal and not harmful to the product. Marking permanency
is not affected by this change.
Prole Feature SnPb Assembly
Pb-Free Assembly
Preheat/Soak
Temperature Minimum (TSmin)100°C 150°C
Temperature Maximum (TSmax)150°C 200°C
Time (ts) from Tsmin to Tsmax) 60 – 120 seconds 60 – 120 seconds
Ramp-up Rate (T
L
to T
P
)3°C/secondmaximum 3°C/secondmaximum
Liquidous Temperature (TL)183°C 217°C
Time Above Liquidous (t
L
) 60 – 150 seconds 60 – 150 seconds
Peak Temperature (TP)
220°C*
235°C**
250°C*
260°C**
Timewithin5°CofMaximum
Peak Temperature (tP)
20 seconds maximum 30 seconds maximum
Ramp-down Rate (TP to TL)C/secondmaximum 6°C/secondmaximum
Time25°CtoPeak
Temperature
6 minutes maximum 8 minutes maximum
Note: All temperatures refer to the center of the package, measured on the
package body surface that is facing up during assembly reow.
* For Case Size height > 2.5 mm
** For Case Size height ≤ 2.5 mm
Storage
Tantalum chip capacitors should be stored in normal working environments. While the chips themselves are quite robust in
other environments, solderability will be degraded by exposure to high temperatures, high humidity, corrosive atmospheres,
and long term storage. In addition, packaging materials will be degraded by high temperature – reels may soften or warp
and tape peel force may increase. KEMET recommends that maximum storage temperature not exceed 40ºC and maximum
storagehumiditynotexceed60%relativehumidity.Temperatureuctuationsshouldbeminimizedtoavoidcondensation
on the parts and atmospheres should be free of chlorine and sulphur bearing compounds. For optimized solderability, chip
stock should be used promptly, preferably within three years of receipt.
Time
Temperature
Tsmin
25
Tsmax
TL
TPMaximum Ramp-up Rate = 3°C/second
Maximum Ramp-down Rate = 6°C/second
tP
tL
ts
25°C to Peak
13© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
13
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Construction
Leadframe
( Cathode)
Leadframe
(+ Anode)
Tantalum Wire
Molded Epoxy
Case
Molded Epoxy
Case
Polarity
Bevel (+)
Weld
(to attach wire)
Silver Adhesive
Washer
Polarity Stripe (+) Detailed Cross Section
Tantalum Wire
Tantalum
Ta2O5 Dielectric
(First Layer)
Carbon
(Third Layer)
Silver Paint
(Fourth Layer)
Washer
MnO2
(Second Layer)
Capacitor Marking
* 908 = 8th week of 2019
KEMET
Industrial
Grade MnO2
Polarity
Indicator (+)
Rated
Voltage
Picofarad
Code
KEMET
ID
Date
Code*
Date Code *
1st digit = last number of year 5 = 2015
6 = 2016
7 = 2017
8 = 2018
9 = 2019
2nd and 3rd digit = week of the
year
01 = 1st week of the year to
52 = 52nd week of the year
14© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
14
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Tape & Reel Packaging Information
KEMET’smoldedchipcapacitorfamiliesarepackagedin8and12mmplastictapeon7"and13"reelsinaccordancewith
EIA Standard 481: Embossed Carrier Taping of Surface Mount Components for Automatic Handling. This packaging system
is compatible with all tape-fed automatic pick-and-place systems.
Embossment
8 mm (0.315”) or
12 mm (0.472”)
Embossed carrier
Right hand
orientation
only
(+) ()
Top tape thickness
0.10 mm (0.004”)
maximum thickness
180 mm (7.0”) or
330 mm (13.”)
Table 3 – Packaging Quantity
Case Code
Tape Width
(mm) 7" Reel* 13" Reel*
KEMET
EIA
S
3216-12
8
2,500
10,000
T
3528-12
8
3,000
10,000
M
3528-15
8
2,500
8,000
U
6032-15
12
1,000
5,000
L
6032-19
12
1,000
3,000
W
7343-15
12
1,000
3,000
Z
7343-17
12
1,000
3,000
V
7343-20
12
1,000
3,000
A
3216-18
8
2,000
9,000
B
3528-21
8
2,000
8,000
C
6032-28
12
500
3,000
D
7343-31
12
500
2,500
Q
7343-12
12
1,000
3,000
Y
7343-40
12
500
2,000
X
7343-43
12
500
2,000
E/T428P
7360-38
12
500
2,000
H
7360-20
12
1,000
2,500
O
7360-43
12
250
1,000
* No C-Spec required for 7" reel packaging. C-7280 required for 13" reel packaging.