Tantalum Surface Mount Capacitors – Automotive Grade
T491 Series Automotive/Industrial Grade MnO
2
Electrical Characteristics
ESR vs. Frequency
100
T491C336M025AT_IMP
T491D476M025AT_IMP
Capacitance vs. Frequency
1,000
T491C336M025AT
T491D476M025AT
T491X107M025AT
Impedance, ESR (Ohms)
10
T491X107M025AT_IMP
T491C336M025AT_ESR
T491D476M025AT_ESR
T491X107M025AT_ESR
1
Capacitance (µF)
10,000,000
100
10
0.1
0.01
100
1,000
10,000
Frequency (Hz)
100,000
1,000,000
1
100
1,000
10,000
Frequency (Hz)
100,000
1,000,000
10,000,000
Dimensions – Millimeters (Inches)
Metric will govern
CATHODE (-) END VIEW
W
H
X
T
S
G
S
Termination cutout
at KEMET's option,
either end
SIDE VIEW
B
B
ANODE (+) END VIEW
BOTTOM VIEW
A
E
P
R
L
F
Case Size
KEMET
A
B
C
D
X
E
S
T
U
V
EIA
L
W
H
F ±0.1
±(0.004)
S
Component
B ±0.15
(Ref)
±0.006
0.4
(0.016)
X
(Ref)
0.10±0.10
(0.004±0.004)
P
(Ref)
0.4
(0.016)
R
(Ref)
0.4
(0.016)
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
N/A
N/A
N/A
N/A
N/A
T
(Ref)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
A
(Min)
1.2
(0.047)
1.9
(0.075)
2.9
(0.114)
3.6
(0.142)
3.6
(0.142)
3.6
(0.142)
1.2
(0.047)
1.9
(0.075)
2.9
(0.114)
3.6
(0.142)
G
(Ref)
1.1
(0.043)
1.8
(0.071)
2.8
(0.110)
3.5
(0.138)
3.5
(0.138)
3.5
(0.138)
1.1
(0.043)
1.8
(0.071)
2.8
(0.110)
3.5
(0.138)
E
(Ref)
1.3
(0.051)
2.2
(0.087)
2.4
(0.094)
3.5
(0.138)
3.5
(0.138)
3.5
(0.138)
1.3
(0.051)
2.2
(0.087)
2.4
(0.094)
3.5
(0.138)
3.2±0.2
1.6±0.2
1.6±0.2
3216–18 (0.126±0.008) (0.063±0.008) (0.063±0.008)
3.5±0.2
2.8±0.2
1.9±0.2
3528–21 (0.138±0.008) (0.110±0.008) (0.075±0.008)
6.0±0.3
3.2±0.3
2.5±0.3
6032–28 (0.236±0.012) (0.126±0.012) (0.098±0.012)
7.3±0.3
4.3±0.3
2.8±0.3
7343–31 (0.287±0.012) (0.169±0.012) (0.110±0.012)
7343–
7.3±0.3
4.3±0.3
4.0±0.3
(0.287±0.012) (0.169±0.012) (0.157±0.012)
43
7.3±0.3
6.0±0.3
3.6±0.2
7360-38 (0.287±0.012) (0.236±0.012) (0.142±0.008)
3.2±0.2
1.6±0.2
3216–12 (0.126±0.008) (0.063±0.008)
3.5±0.2
2.8±0.2
3528–12 (0.138±0.008) (0.110±0.008)
6.0±0.3
3.2±0.2
6032–15 (0.236±0.012) (0.110±0.008)
7.3±0.3
4.3±0.3
7343-20 (0.287±0.012) (0.169±0.012)
1.2
(0.047)
1.2
(0.047)
1.5
(0.059)
2.0
(0.079)
1.2
0.80 (0.032) +0.2
(0.047)
(0.008)/−0.3(0.011)
2.2
0.80 (0.032) +0.1
0.4
(0.087)
(0.004)/−0.3(0.011)
(0.016)
2.2
(0.087)
2.4
(0.094)
2.4
(0.094)
4.1
(0.161)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
0.5
(0.020)
0.5
(0.020)
0.5
(0.020)
0.5
(0.020)
N/A
N/A
N/A
N/A
0.10±0.10
0.5
(0.004±0.004) (0.020)
0.10±0.10
0.9
(0.004±0.004) (0.035)
0.10±0.10
0.9
(0.004±0.004) (0.035)
0.10±0.10
1.7
(0.004±0.004) (0.067)
0.10±0.10
(0.004±0.004)
0.05
(0.002)
0.05
(0.002)
0.05
(0.002)
0.05
(0.002)
N/A
N/A
N/A
N/A
N/A
1.2
0.80 (0.032) +0.2
(0.047)
(0.008)/−0.3(0.011)
2.2
0.80 (0.032) +0.1
(0.087)
(0.004)/−0.3(0.011)
2.2
(0.087)
2.4
(0.094)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
Notes: (Ref) – Dimensions provided for reference only. For low profile cases, no dimensions are provided for B, P or R because these cases do not have a bevel or
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Series Automotive/Industrial Grade MnO
2
Table 1 – Ratings & Part Number Reference
Rated
Voltage
VDC at 85ºC
4
4
4
4
4
4
4
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
10
10
10
10
VDC at 85ºC
Rated
Capacitance
µF
4.7
10
33
47
47
68
100
2.2
3.3
4.7
6.8
6.8
10
10
15
15
15
22
22
22
33
33
33
47
47
47
47
68
68
68
68
100
100
100
150
150
220
220
220
330
330
330
470
470
1
1.5
2.2
2.2
µF
Case Code/
Case Size
KEMET/EIA
A/3216-18
A/3216-18
B/3528-21
A/3216-18
C/6032-28
C/6032-28
A/3216-18
A/3216-18
A/3216-18
A/3216-18
A/3216-18
B/3528-21
A/3216-18
B/3528-21
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
D/7343-31
A/3216-18
B/3528-21
C/6032-28
D/7343-31
B/3528-21
C/6032-28
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
X/7343-43
D/7343-31
X/7343-43
E/7360-38
X/7343-43
E/7360-38
A/3216-18
A/3216-18
A/3216-18
B/3528-21
KEMET/EIA
KEMET Part Number
(See below for
part options)
T491A475(1)004A(2)AUTO
T491A106(1)004A(2)AUTO
T491B336(1)004A(2)AUTO
T491A476(1)004A(2)AUTO
T491C476(1)004A(2)AUTO
T491C686(1)004A(2)AUTO
T491A107M004A(2)AUTO
T491A225(1)006A(2)AUTO
T491A335(1)006A(2)AUTO
T491A475(1)006A(2)AUTO
T491A685(1)006A(2)AUTO
T491B685(1)006A(2)AUTO
T491A106(1)006A(2)AUTO
T491B106(1)006A(2)AUTO
T491A156(1)006A(2)AUTO
T491B156(1)006A(2)AUTO
T491C156(1)006A(2)AUTO
T491A226(1)006A(2)AUTO
T491B226(1)006A(2)AUTO
T491C226(1)006A(2)AUTO
T491A336(1)006A(2)AUTO
T491B336(1)006A(2)AUTO
T491C336(1)006A(2)AUTO
T491A476(M)006A(2)AUTO
T491B476(1)006A(2)AUTO
T491C476(1)006A(2)AUTO
T491D476(1)006A(2)AUTO
T491A686(1)006A(2)AUTO
T491B686(1)006A(2)AUTO
T491C686(1)006A(2)AUTO
T491D686(1)006A(2)AUTO
T491B107(1)006A(2)AUTO
T491C107(1)006A(2)AUTO
T491D107(1)006A(2)AUTO
T491C157(1)006A(2)AUTO
T491D157(1)006A(2)AUTO
T491C227(1)006A(2)AUTO
T491D227(1)006A(2)AUTO
T491X227(1)006A(2)AUTO
T491D337(1)006A(2)AUTO
T491X337(1)006A(2)AUTO
T491E337(1)006A(2)AUTO
T491X477(1)006A(2)AUTO
T491E477(1)006A(2)AUTO
T491A105(1)010A(2)AUTO
T491A155(1)010A(2)AUTO
T491A225(1)010A(2)AUTO
T491B225(1)010A(2)AUTO
(See below for
part options)
DC
Leakage
µA +20ºC
Maximum/5 Min
0.5
0.5
1.3
1.9
1.9
2.7
4.0
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.9
0.9
0.9
1.4
1.4
1.4
2.1
2.1
2.1
3.0
3.0
3.0
3.0
4.3
4.3
4.3
4.3
6.3
6.3
6.3
9.5
9.5
14
14
14
20.8
20.8
20.8
29.6
29.6
0.5
0.5
0.5
0.5
µA +20ºC
Maximum/5 Min
DF
% at +20ºC
120 Hz Maximum
6
6
6
10
6
6
30
6
6
6
6
6
6
6
6
6
6
6
6
6
12
6
6
12
6
6
6
30
8
6
6
15
8
8
8
8
10
8
8
8
8
8
10
10
4
6
6
6
% at +20ºC
120 Hz Maximum
ESR
Ω at 20ºC
100 kHz Maximum
8
4.5
2.5
2.5
1.6
1.5
4.0
8
7
5.5
6.0
3.5
4
3.5
3.5
3
1.8
4
2.5
1.8
2.5
2.2
1.6
3.5
2
1.5
0.8
4
0.9
1.2
0.8
3.0
0.9
0.8
1.2
0.7
1
0.7
0.7
0.4
0.4
0.5
0.4
0.4
10
8
7
3.5
Ω at 20ºC
100 kHz Maximum
Maximum
Operating
Temp
ºC
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
ºC
Rated Voltage
Rated
Capacitance
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Maximum
Operating
Temp
(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.
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