
SOLID TANTALUM CHIP CAPACITORS
T491 SERIES - Precision Molded Chip
T491 RATINGS & PART NUMBER REFERENCE
DC
Leakage
μ
A @ 25oC
Max
Max
Max
2.5 Volt Rating at +85oC (1.7 Volt Rating at +125oC)
KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-6300
17
S
(1)
(2)
*Extended Values
**6 Volt product equivalent to 6.3 volt product.
#Maximum Capacitance Change @ 125oC=+15%.
Maximum Capacitance Change @ 125oC=+20%.
Higher voltage ratings and tighter tolerance product may be substituted within the same size at KEMET’s option.
Voltage substitutions will be marked with the higher voltage rating.
To complete KEMET Part Number, insert M for ±20% tolerance or K for ±10% tolerance.
To complete KEMET Part Number, insert T, H, G, or S lead material designation as shown on page 15.
Capaci-
tance
μF
Case
Size
KEMET
Part Number
DF %
@ +25oC
120 Hz
ESR
Ω
@ +25°C
100 kHz
100.0
220.0
T
D
T491T107(1)2R5A(2)
T491D227(1)2R5A(2)
3 Volt Rating at +85oC (2 Volt Rating at +125oC)
2.5
5.5
24.0
8.0
3.9
0.3
#33.0
A
T491A336(1)003A(2)
4 Volt Rating at +85oC (2.7 Volt Rating at +125oC)
1.0
6.0
4.0
3.3
4.7
6.8
6.8
10.0
10.0
#10.0
#10.0
15.0
15.0
15.0
#15.0
22.0
22.0
#22.0
#22.0
22.0
33.0
33.0
33.0
#33.0
#33.0
47.0
47.0
#47.0
#47.0
#47.0
68.0
68.0
#68.0
#68.0
#68.0
100.0
#100.0
#100.0
#100.0
100.0
100.0
150.0
150.0
#150.0
150.0
#220.0
#220.0
330.0
330.0
#330.0
#470.0
#470.0
#680.0
#680.0
#1000.0
#1000.0
A
A
A
S
B
A
S
R
B
A
T
S
C
B
A
T
S
C
U
B
A
T
C
U
B
A
T
D
C
U
B
A
D
C
U
B
A
T
D
V
C
B
V
B
D
V
C
X
D
X
D
X
E
T491A335(1)004A(2)
T491A475(1)004A(2)
T491A685(1)004A(2)
T491S685(1)004A(2)
T491B106(1)004A(2)
T491A106(1)004A(2)
T491S106(1)004A(2)
T491R106(1)004A(2)
T491B156(1)004A(2)
T491A156(1)004A(2)
T491T156(1)004A(2)
T491S156(1)004A(2)
T491C226(1)004A(2)
T491B226(1)004A(2)
T491A226(1)004A(2)
T491T226(1)004A(2)
T491S226(1)004A(2)
T491C336(1)004A(2)
T491U336(1)004A(2)
T491B336(1)004A(2)
T491A336(1)004A(2)
T491T336(1)004A(2)
T491C476(1)004A(2)
T491U476(1)004A(2)
T491B476(1)004A(2)
T491A476M004A(2)
T491T476M004A(2)
T491D686(1)004A(2)
T491C686(1)004A(2)
T491U686(1)004A(2)
T491B686(1)004A(2)
T491A686(1)004A(2)
T491D107(1)004A(2)
T491C107(1)004A(2)
T491U107(1)004A(2)
T491B107M004A(2)
T491A107M004A(2)
T491T107M004A(2)
T491D157(1)004A(2)
T491V157(1)004A(2)
T491C157(1)004A(2)
T491B157M004A(2)
T491V227(1)004A(2)
T491B227M004A(2)
T491D337(1)004A(2)
T491V337(1)004A(2)
T491C337(1)004A(2)
T491X477(1)004A(2)
T491D477(1)004A(2)
T491X687(1)004A(2)
T491D687(1)004A(2)
T491X108(1)004A(2)
T491E108M004A(2)
**6 Volt Rating at +85oC (4 Volt Rating at +125oC)
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.9
0.9
0.9
0.9
0.9
1.3
1.3
1.3
1.3
1.3
1.9
1.9
1.9
1.9
1.9
2.7
2.7
2.7
2.7
2.8
4.0
4.0
4.0
4.0
4.0
4.0
6.0
6.0
6.0
6.0
8.8
8.8
13.2
13.2
13.2
18.8
18.8
27.2
27.2
40.0
40.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
12.0
12.0
6.0
6.0
6.0
6.0
30.0
8.0
8.0
10.0
8.0
30.0
30.0
8.0
8.0
8.0
12.0
8.0
18.0
8.0
12.0
10.0
8.0
8.0
12.0
12.0
12.0
15.0
8.0
8.0
6.0
15.0
3.5
6.0
15.0
10.0
3.5
4.0
5.0
15.0
1.8
3.5
4.0
5.0
10.0
1.8
1.8
3.5
4.0
5.0
1.8
1.8
3.0
2.5
6.0
0.8
1.6
1.8
3.5
4.0
0.8
1.2
1.8
0.9
4.0
5.0
0.8
0.7
1.2
2.0
0.7
0.5
0.7
0.7
0.9
0.5
0.8
0.5
0.5
0.5
0.2
2.2
2.2
3.3
4.7
4.7
6.8
6.8
#6.8
#6.8
10.0
10.0
10.0
#10.0
#10.0
R
A
A
A
S
B
A
S
R
B
A
T
S
R
T491R225(1)006A(2)
T491A225(1)006A(2)
T491A335(1)006A(2)
T491A475(1)006A(2)
T491S475(1)006A(2)
T491B685(1)006A(2)
T491A685(1)006A(2)
T491S685(1)006A(2)
T491R685(1)006A(2)
T491B106(1)006A(2)
T491A106(1)006A(2)
T491T106(1)006A(2)
T491S106(1)006A(2)
T491R106(1)006A(2)
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.6
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
10.0
8.0
25.0
8.0
8.0
6.0
15.0
3.5
6.0
15.0
15.0
3.5
4.0
5.0
15.0
10.0
Capaci-
tance
μF
Case
Size
KEMET
Part Number
DC
Leakage
μ
A @ 25oC
Max
DF %
@ +25oC
120 Hz
Max
ESR
Ω
@ +25°C
100 kHz
Max
15.0
15.0
#15.0
#15.0
#15.0
22.0
22.0
22.0
#22.0
#22.0
33.0
33.0
#33.0
#33.0
#33.0
47.0
47.0
#47.0
#47.0
47.0
*47.0
68.0
#68.0
#68.0
#68.0
#68.0
100.0
100.0
#100.0
#100.0
#100.0
150.0
#150.0
#150.0
220.0
#220.0
#220.0
#220.0
330.0
330.0
330.0
470.0
470.0
470.0
680.0
C
B
A
T
S
C
U
B
A
T
C
U
B
A
T
D
C
U
B
A
T
D
C
U
B
A
D
V
C
U
B
D
C
V
X
D
C
V
X
D
E
X
D
E
E
T491C156(1)006A(2)
T491B156(1)006A(2)
T491A156(1)006A(2)
T491T156(1)006A(2)
T491S156(1)006A(2)
T491C226(1)006A(2)
T491U226(1)006A(2)
T491B226(1)006A(2)
T491A226(1)006A(2)
T491T226(1)006A(2)
T491C336(1)006A(2)
T491U336(1)006A(2)
T491B336(1)006A(2)
T491A336(1)006A(2)
T491T336(1)006A(2)
T491D476(1)006A(2)
T491C476(1)006A(2)
T491U476(1)006A(2)
T491B476(1)006A(2)
T491A476M006A(2)
T491T476(1)006A(2)
T491D686(1)006A(2)
T491C686(1)006A(2)
T491U686(1)006A(2)
T491B686(1)006A(2)
T491A686(1)006A(2)
T491D107(1)006A(2)
T491V107(1)006A(2)
T491C107(1)006A(2)
T491U107(1)006A(2)
T491B107(1)006A(2)
T491D157(1)006A(2)
T491C157(1)006A(2)
T491V157(1)006A(2)
T491X227(1)006A(2)
T491D227(1)006A(2)
T491C227M006A(2)
T491V227(1)006A(2)
T491X337(1)006A(2)
T491D337(1)006A(2)
T491E337(1)006A(2)
T491X477(1)006A(2)
T491D477M006A(2)
T491E477(1)006A(2)
T491E687M006A(2)
10 Volt Rating at +85oC (7 Volt Rating at +125oC)
0.9
0.9
0.9
0.9
0.9
1.4
1.4
1.4
1.4
1.4
2.0
2.0
2.0
2.0
2.0
2.9
2.9
2.9
2.9
3.0
3.0
4.1
4.1
4.1
4.1
5.0
6.0
6.0
6.0
6.0
6.3
9.0
9.0
9.0
13.2
13.2
13.2
13.2
19.8
19.8
20.8
28.2
28.2
29.6
40.8
6.0
6.0
6.0
6.0
15.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
12.0
12.0
6.0
6.0
6.0
6.0
12.0
24.0
6.0
6.0
10.0
8.0
30.0
8.0
8.0
8.0
10.0
15.0
8.0
8.0
8.0
8.0
8.0
10.0
12.0
8.0
8.0
8.0
10.0
12.0
10.0
12.0
1.8
3.5
3.5
5.0
10.0
1.8
1.8
3.5
4.0
5.0
1.8
1.8
3.0
2.5
6.0
0.8
1.6
1.8
2.0
3.5
4.4
0.8
1.2
1.8
0.9
4.0
0.8
0.7
0.9
1.8
3.0
0.7
1.2
0.7
0.7
0.7
1.2
0.7
0.4
0.4
0.5
0.4
0.4
0.4
0.5
1.5
2.2
2.2
3.3
3.3
#3.3
4.7
4.7
#4.7
#4.7
6.8
6.8
6.8
#6.8
10.0
10.0
#10.0
#10.0
#10.0
15.0
15.0
15.0
#15.0
#15.0
A
B
A
A
S
R
B
A
S
R
B
A
T
S
C
B
A
T
S
C
U
B
A
T
T491A155(1)010A(2)
T491B225(1)010A(2)
T491A225(1)010A(2)
T491A335(1)010A(2)
T491S335(1)010A(2)
T491R335(1)010A(2)
T491B475(1)010A(2)
T491A475(1)010A(2)
T491S475(1)010A(2)
T491R475(1)010A(2)
T491B685(1)010A(2)
T491A685(1)010A(2)
T491T685(1)010A(2)
T491S685(1)010A(2)
T491C106(1)010A(2)
T491B106(1)010A(2)
T491A106(1)010A(2)
T491T106(1)010A(2)
T491S106(1)010A(2)
T491C156(1)010A(2)
T491U156(1)010A(2)
T491B156(1)010A(2)
T491A156(1)010A(2)
T491T156(1)010A(2)
0.5
0.5
0.5
0.5
0.5
0.3
0.5
0.5
0.5
0.5
0.7
0.7
0.7
0.7
1.0
1.0
1.0
1.0
1.0
1.5
1.5
1.5
1.5
1.5
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
8.0
8.0
8.0
3.5
8.0
6.0
15.0
15.0
3.5
5.0
15.0
10.0
3.5
4.0
5.0
15.0
1.8
3.5
4.0
5.0
15.0
1.8
1.8
2.8
6.0
5.0
**6 Volt Rating at +85oC (4 Volt Rating at +125oC)