1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO • 10/16/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Built Into Tomorrow
Benets
• Meets or exceeds EIA standard 535BAAC
• Tape & Reel standard packaging per EIA 481
• Symmetrical, compliant terminations
• Optional gold-plated terminations
• Laser-marked case
• 100% surge current test
• Extended range values
• Lowprolecasesizes
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.Lowprolecasesizesare
available.Thisseriesisclassiedasmoisture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.
• Halogen-free
• Epoxy compliant with UL94 V-0
• MoldedEpoxycompliesforoutgassingtestingunderASTME595.
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2© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2050_T491_AUTO • 10/16/2020
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 4–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 • 10/16/2020
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 −55°C +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–STD–202,Method213,ConditionI,100Gpeak
MIL–STD–202,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 • 10/16/2020
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 HF ±0.1
±(0.004)
S
(Ref)
X
(Ref)
P
(Ref)
R
(Ref)
T
(Ref)
A
(Min)
G
(Ref)
E
(Ref)
A3216–18 3.2±0.2
(0.126±0.008) 1.6±0.2
(0.063±0.008) 1.6±0.2
(0.063±0.008) 1.2
(0.047) 0.80(0.032)+0.2
(0.008)/−0.3(0.011) 0.4
(0.016) 0.10±0.10
(0.004±0.004) 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
(0.004±0.004) 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
(0.098±0.012) 2.2
(0.087) 1.30 (0.051)
±0.3 (0.011) 0.5
(0.020) 0.10±0.10
(0.004±0.004) 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
(0.004±0.004) 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
(0.004±0.004) 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
(0.004±0.004) N/A N/A 0.13
(0.005) 3.6
(0.142) 3.5
(0.138) 3.5
(0.138)
V7343-20 7.3±0.3
(0.287±0.012) 4.3±0.3
(0.169±0.012) 1.8 ±0.2
(0.071 ± 0.008) 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 • 10/16/2020
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 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum °C
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
4150 A/3216-18 T491A157(1)004A(2)AUTO 6.0 12 2.0 125
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
VDC at 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
°C
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 • 10/16/2020
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 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum °C
10 2.2 B/3528-21 T491B225(1)010A(2)AUTO 0.5 63.5 125
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
VDC at 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
°C
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.
(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 • 10/16/2020
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 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum °C
16 10 B/3528-21 T491B106(1)016A(2)AUTO 1.6 62.5 125
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
VDC at 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
°C
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.
(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 • 10/16/2020
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 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
°C
25 1.5 A/3216-18 T491A155(1)025A(2)AUTO 0.5 6 7 125
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
VDC at 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
°C
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.
(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 • 10/16/2020
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.
(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 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
°C
35 10 V/7343-20 T491V106(1)035A(2)AUTO 3.5 6 1 125
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 10 X/7343-43 T491X106(1)050A(2)AUTO 5.0 60.7 125
50 22 X/7343-43 T491X226(1)050A(2)AUTO 11.0 10 0.6 125
VDC at 85°C µF KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
°C
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 • 10/16/2020
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 (Pmax)
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Pmaxofthedevice,themaximumallowablerms
ripple current or voltage may be determined.
I(max) = √Pmax/R
E(max) = Z √Pmax/R
I = rms ripple current (amperes)
E = rms ripple voltage (volts)
Pmax = 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 • 10/16/2020
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 4.25 2.77 3.67 10.22 7.30 4.13 2.37 3.87 9.12 6.80 4.03 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
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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)6°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40°C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
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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
* 016 = 16th week of 2020
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
0 = 2020
2nd and 3rddigit=weekofthe
year
01 = 1stweekoftheyearto
52 = 52ndweekoftheyear
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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.
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15
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Figure 1 – Embossed (Plastic) Carrier Tape Dimensions
P
0
T
F
W
Center Lines of Cavity
A
0
B
0
User Direction of Unreeling
Cover Tape
K
0
B
1
is for tape feeder reference only,
including draft concentric about B
0
.
T
2
ØD
1
ØD
0
B
1
S
1
T
1
E
1
E
2
P
1
P
2
Embossment
For cavity size,
see Note 1, Table 4
(10 pitches cumulative
tolerance on tape ±0.2 mm)
Table 4 – Embossed (Plastic) Carrier Tape Dimensions
Metric will govern
Constant Dimensions — Millimeters (Inches)
TapeSize D0
D
1
Minimum
Note1
E1P0 P2
RReference
Note2
S
1
Minimum
Note3
T Maximum
T
1
Maximum
8 mm
1.5+0.10/−0.0
(0.059+0.004/−0.0)
1.0
(0.039) 1.75 ±0.10
(0.069 ±0.004)
4.0 ±0.10
(0.157 ±0.004)
2.0 ±0.05
(0.079 ±0.002)
25.0
(0.984) 0.600
(0.024)
0.600
(0.024)
0.100
(0.004)
12 mm 1.5
(0.059)
30
(1.181)
Variable Dimensions — Millimeters (Inches)
TapeSize Pitch
B
1
Maximum
Note4
E2 Minimum F P1 T2 Maximum W Maximum A0, B0 & K0
8 mm Single (4 mm) 4.35
(0.171)
6.25
(0.246)
3.5 ±0.05
(0.138 ±0.002)
2.0 ±0.05 or 4.0 ±0.10
(0.079 ±0.002 or 0.157 ±0.004)
2.5
(0.098)
8.3
(0.327)
Note5
12 mm
Single (4 mm)
and Double
(8 mm)
8.2
(0.323)
10.25
(0.404)
5.5 ±0.05
(0.217 ±0.002)
2.0 ±0.05 (0.079 ±0.002) or
4.0 ±0.10 (0.157 ±0.004) or
8.0 ±0.10 (0.315 ±0.004)
4.6
(0.181)
12.3
(0.484)
1. The embossment hole location shall be measured from the sprocket hole controlling the location of the embossment. Dimensions of embossment
location and hole location shall be applied independent of each other.
2. The tape, with or without components, shall pass around R without damage (see Figure 4).
3. If S1 < 1.0 mm, there may not be enough area for cover tape to be properly applied (see EIA Standard 481–D, paragraph 4.3, section b).
4. B1 dimension is a reference dimension for tape feeder clearance only.
5. The cavity de ned by A0, B0 and K0 shall surround the component with suffi cient clearance that:
(a) the component does not protrude above the top surface of the carrier tape.
(b) the component can be removed from the cavity in a vertical direction without mechanical restriction, after the top cover tape has been removed.
(c) rotation of the component is limited to 20° maximum for 8 and 12 mm tapes (see Figure 2).
(d) lateral movement of the component is restricted to 0.5 mm maximum for 8 mm and 12 mm wide tape (see Figure 3).
(e) see Addendum in EIA Standard 481–D for standards relating to more precise taping requirements.
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16
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Packaging Information Performance Notes
1. Cover tape break force: 1.0 kg minimum.
2. Cover tape peel strength: Thetotalpeelstrengthofthecovertapefromthecarriertapeshallbe:
Tape Width Peel Strength
8 mm 0.1to1.0newton(10to100gf)
12 mm 0.1to1.3newton(10to130gf)
Thedirectionofthepullshallbeoppositethedirectionofthecarriertapetravel.Thepullangleofthecarriertapeshallbe
165°to180°fromtheplaneofthecarriertape.Duringpeeling,thecarrierand/orcovertapeshallbepulledatavelocityof
300 ±10 mm/minute.
3. Labeling:Barcodelabeling(standardorcustom)shallbeonthesideofthereeloppositethesprocketholes.Refer to EIA
Standards 556 and 624.
Figure 2 – Maximum Component Rotation
Ao
Bo
°
T
°
s
Maximum Component Rotation
Top View
Maximum Component Rotation
Side View
Tape
Width (mm)
Maximum
Rotation (°
T)
8, 12 20 Tape
Width (mm)
Maximum
Rotation (
8, 12 20
°
S)
Typical Pocket Centerline
Typical Component Centerline
Figure 3 – Maximum Lateral Movement
0.5 mm maximum
0.5 mm maximum
8 mm & 12 mm Tape
Figure 4 – Bending Radius
RR
Bending
Radius
Embossed
Carrier
Punched
Carrier
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17
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Figure 5 – Reel Dimensions
AD(See Note)
Full Radius,
See Note
B(see Note)
Access Hole at
Slot Location
(Ø 40 mm minimum)
If present,
tape slot in core
for tape start:
2.5 mm minimum width x
10.0 mm minimum depth
W3(Includes
flange distortion
at outer edge)
W2(Measured at hub)
W1(Measured at hub)
C
(Arbor hole
diameter)
Note: Drive spokes optional; if used, dimensions B and D shall apply.
N
Table 5 – Reel Dimensions
Metric will govern
Constant Dimensions — Millimeters (Inches)
TapeSize A B Minimum C D Minimum
8 mm
178 ±0.20
(7.008 ±0.008)
or
330 ±0.20
(13.000 ±0.008)
1.5
(0.059)
13.0+0.5/−0.2
(0.521+0.02/−0.008)
20.2
(0.795)
12 mm
Variable Dimensions — Millimeters (Inches)
TapeSize NMinimum W1 W2 Maximum W3
8 mm 50
(1.969)
8.4+1.5/−0.0
(0.331+0.059/−0.0)
14.4
(0.567)
Shall accommodate tape
widthwithoutinterference
12 mm
12.4+2.0/−0.0
(0.488+0.078/−0.0)
18.4
(0.724)
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18
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
Figure 6 – Tape Leader & Trailer Dimensions
Trailer
160 mm minimum
Carrier Tape
END START
Round Sprocket Holes
Elongated Sprocket Holes
(32 mm tape and wider)
Top Cover Tape
Top Cover Tape
Punched Carrier
8 mm & 12 mm only
Embossed Carrier
Components
100 mm
minimum Leader
400 mm minimum
Figure 7 – Maximum Camber
Carrier Tape
Round Sprocket Holes
1 mm maximum, either direction
Straight Edge
250 mm
Elongated Sprocket Holes
(32 mm & wider tapes)
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19
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO2
KEMET Electronics Corporation Sales Offi ces
Foracompletelistofourglobalsalesoces,pleasevisitwww.kemet.com/sales.
Disclaimer
Allproductspecications,statements,informationanddata(collectively,the“Information”)inthisdatasheetaresubjecttochange.Thecustomerisresponsiblefor
checkingandverifyingtheextenttowhichtheInformationcontainedinthispublicationisapplicabletoanorderatthetimetheorderisplaced.AllInformationgiven
hereinisbelievedtobeaccurateandreliable,butitispresentedwithoutguarantee,warranty,orresponsibilityofanykind,expressedorimplied.
StatementsofsuitabilityforcertainapplicationsarebasedonKEMETElectronicsCorporation’s(“KEMET”)knowledgeoftypicaloperatingconditionsforsuch
applications,butarenotintendedtoconstitute–andKEMETspecicallydisclaims–anywarrantyconcerningsuitabilityforaspeciccustomerapplicationoruse.
TheInformationisintendedforuseonlybycustomerswhohavetherequisiteexperienceandcapabilitytodeterminethecorrectproductsfortheirapplication.Any
technicaladviceinferredfromthisInformationorotherwiseprovidedbyKEMETwithreferencetotheuseofKEMET’sproductsisgivengratis,andKEMETassumes
noobligationorliabilityfortheadvicegivenorresultsobtained.
AlthoughKEMETdesignsandmanufacturesitsproductstothemoststringentqualityandsafetystandards,giventhecurrentstateoftheart,isolatedcomponent
failuresmaystilloccur.Accordingly,customerapplicationswhichrequireahighdegreeofreliabilityorsafetyshouldemploysuitabledesignsorothersafeguards
(suchasinstallationofprotectivecircuitryorredundancies)inordertoensurethatthefailureofanelectricalcomponentdoesnotresultinariskofpersonalinjury
or property damage.
Althoughallproduct–relatedwarnings,cautionsandnotesmustbeobserved,thecustomershouldnotassumethatallsafetymeasuresareindictedorthatother
measuresmaynotberequired.
KEMET is a registered trademark of KEMET Electronics Corporation.