Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO2 Series
Table 1 – Ratings & Part Number Reference cont'd
Rated Rated Case Code/ KEMET Part
DC
Leakage
Maximum Allowable
Ripple Current
Moisture
Sensitivity
DF
ESR
Voltage Cap
Case Size
Number
µA @ +20ºC
Maximum/
5 Minutes
% @ +20ºC
120 Hz
Maximum
Ω @ +20ºC
100 kHz
Maximum
(mA)
100 kHz
25ºC
(mA)
100 kHz
+85ºC
(mA)
100 kHz
+125ºC
(See below for
part options)
Reflow Temperature
≤ 260 ºC
VDC
µF
KEMET/EIA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
10
10
10
10
15
15
15
22
22
22
22
33
33
33
33
47
47
C/6032-28
U/6032-15
B/3528-21
A/3216-18
D/7343-31
B/3528-21
C/6032-28
D/7343-31
V/7343-20
C/6032-28
B/3528-21
D/7343-31
C/6032-28
V/7343-20
B/3528-21
C/6032-28
X/7343-43
D/7343-31
X/7343-43
D/7343-31
X/7343-43
D/7343-31
E/7360-38
X/7343-43
A/3216-18
A/3216-18
A/3216-18
B/3528-21
A/3216-18
S/3216-12
B/3528-21
A/3216-18
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
B/3528-21
A/3216-18
C/6032-28
B/3528-21
D/7343-31
C/6032-28
B/3528-21
D/7343-31
T491C106(1)020A(2)
T491U106(1)020A(2)
T491B106(1)020A(2)
T491A106(M)020A(2)
T491D156(1)020A(2)
T491B156(1)020AT
T491C156(1)020A(2)
T491D226(1)020A(2)
T491V226(1)020A(2)
T491C226(1)020A(2)
T491B226(1)020A(2)
T491D336(1)020A(2)
T491C336(M)020A(2)
T491V336(1)020A(2)
T491B336(M)020A(2)
T491C476(M)020A(2)
T491X476(1)020AT
T491D476(1)020A(2)
T491X686(1)020A(2)
T491D686(1)020A(2)
T491X107(1)020A(2)
T491D107(1)020AT
T491E107(1)020A(2)
T491X157(1)020A(2)
T491A334(1)025A(2)
T491A474(1)025A(2)
T491A684(1)025A(2)
T491B105(1)025A(2)
T491A105(1)025A(2)
T491S105(1)025A(2)
T491B155(1)025A(2)
T491A155(1)025A(2)
T491C225(1)025A(2)
T491A225(1)025A(2)
T491B225(1)025A(2)
T491C335(1)025A(2)
T491A335(1)025A(2)
T491B335(1)025A(2)
T491C475(1)025A(2)
T491B475(1)025A(2)
T491A475(M)025A(2)
T491C685(1)025A(2)
T491B685(1)025A(2)
T491D106(1)025A(2)
T491C106(1)025A(2)
T491B106(1)025A(2)
2.0
2.0
2.0
2.0
3.0
3.0
3.0
4.4
4.4
4.4
4.4
6.6
6.6
6.6
6.6
9.4
9.4
9.4
13.6
13.6
20.0
20.0
20.0
30.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.8
0.8
0.8
1.2
1.2
1.2
1.7
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
8.0
10.0
10.0
6.0
6.0
6.0
8.0
8.0
8.0
8.0
10.0
4.0
4.0
4.0
4.0
4.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
8.0
6.0
6.0
8.0
1.8
1.8
2.1
5.0
1.0
2.5
1.7
0.8
0.7
1.2
4.0
0.8
1.2
0.7
4.0
0.9
0.8
0.7
0.7
0.7
0.5
0.9
0.5
0.5
15.0
13.0
10.0
5.0
8.0
18.0
5.0
7.0
3.5
7.0
4.5
2.5
7.0
3.5
2.4
1.5
6.0
1.9
2.8
1.0
1.5
3.0
247
224
201
122
387
184
254
433
423
303
146
433
303
423
146
350
454
463
486
463
574
408
632
574
71
222
202
181
110
348
166
229
390
381
273
131
390
273
381
131
315
409
417
437
417
517
367
569
517
64
68
78
117
87
52
117
94
159
94
123
189
94
99
90
80
49
155
74
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
102
173
169
121
58
173
121
169
58
140
182
185
194
185
230
163
253
230
28
30
35
52
39
23
52
42
71
42
55
84
42
62
86
95
45
96
70
155
108
67
47
68
68
100
100
100
150
0.33
0.47
0.68
1
76
87
130
97
58
1
1
1.5
1.5
2.2
2.2
2.2
3.3
3.3
3.3
4.7
4.7
4.7
6.8
6.8
10
10
10
15
15
15
15
130
104
177
104
137
210
104
156
214
238
112
241
174
387
271
168
387
354
271
140
193
214
101
217
157
348
244
151
348
319
244
1.7
2.5
2.5
2.5
T491D156(1)025A(2)
3.8
3.8
6.0
1.0
155
142
108
T
491
X
157
K
020
A
T
V/7343-20
C/6032-28
T491V156(1)025AT
6.0
1.0
Capacitor
Class
Capacitance
Capacitance
Failure Rate/
T491C156(1)025A(2)
3.8
6.0
1.5
Series
Case Size
Voltage
Lead Material
Packaging (C-Spec)
58
Code (pF)
T491B156(1)025A(2)
Tolerance
Design
4.0
B/3528-21
3.8
8.0
146
131
1
µA @ +20ºC
% @ +20ºC
Ω @ +20ºC
100 kHz
Maximum
(mA)
(mA)
100 kHz
+85ºC
(mA)
T =
Tantalum
Industrial
A, B, C, D,
E, S, T, U,
V, X
First two digits
part options)
represent
K = ±10%
2R5 = 2.5 V
A = N/A
T = 100% Matte Tin (Sn) Blank = 7" Reel
(See below for
Reflow Temperature
VDC
µF
KEMET/EIA
Maximum/
120 Hz
100 kHz
100 kHz
≤ 260 ºC
7280 = 13" Reel
+125ºC
M = ±20%
003 = 3 V
Plated*
5 Minutes
Maximum
25ºC
signi ꢀcantꢀ
004 = 4 V
H = Standard Solder
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
DC
Leakage
Maximum Allowable
Moisture
Sensitivity
ꢀgures.ꢀThirdꢀdigitꢀ
006 = 6.3 V
Coated (SnPb 5% Pb
DF
ESR
Number
Ripple Current
speci ꢀesꢀnumberꢀ
010 = 10 V
016 = 16 V
minimum)
G = Gold Plated (A, B, C,
D, X only)
N = Non-Magnetic 100%
Tin (Sn)
M = Non-Magnetic (SnPb)
of zeros.
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates capacitance tolerance.
020 = 20 V
(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-
025 = 25 V
Magnetic 100% Tin (Sn), M = Non-Magnetic (SnPb). Designates Termination Finis 5 = 35 V
050 = 50 V
0h3.
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.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
T2005_T491 • 10/8/2013 10
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