SOLID TANTALUM CHIP CAPACITORS
KEMET
T491 SERIES - Precision Molded Chip
®
FEATURES
Meets or Exceeds EIA Standard 535BAAC
Taped and Reeled per EIA 481-1
Symmetrical, Compliant Terminations
Optional Gold-plated Terminations
Laser-marked Case
100% Surge current test on C, D, E, U, V, X sizes
Capacitance: 0.1 F to 1000 F
Tolerance: ±10%, ±20%
Voltage: 3-50 VDC
Extended Range Values
New Low Profile Case Sizes
•
•
•
•
•
CAPACITOR OUTLINE DRAWING
CATHODE (-) END
VIEW
SIDE VIEW
ANODE (+) END
VIEW
B
W
BOTTOM VIEW
Solid Tantalum Surface Mount
•
•
•
•
•
•
B
H
E
K
T
S
X
F
P
S
G
R
Termination
cutout at
KEMETs
Option,
either end
A
L
STANDARD T491 DIMENSIONS
Millimeters (inches)
CASE SIZE
L*
KEMET
A
3216-18
B
3528-21
C
6032-28
D
7343-31
X
7343-43
E
7260-38
W*
3.2 ± 0.2
(.126 ± .008)
3.5 ± 0.2
(.138 ± .008)
6.0 ± 0.3
(.236 ± .012)
7.3 ± 0.3
(.287 ± .012)
7.3 ± 0.3
(.287 ± .012)
7.3 ± 0.3
(.287 ± .012)
1.6 ±0.2
(.063 ±.008)
2.8 ± 0.2
(.110 ± .008)
3.2 ± 0.3
(.126 ± .012)
4.3 ± 0.3
(.169 ± .012)
4.3 ± 0.3
(.169 ± .012)
6.0 ± 0.3
(.236 ± .012)
K*
H*
1.6 ± 0.2
(.063 ± .008)
1.9 ± 0.2
(.075 ± .008)
2.5 ± 0.3
(.098 ± .012)
2.8 ± 0.3
(.110 ± .012)
4.0 ± 0.3
(.157 ± .012)
3.6 ± 0.2
(.142 ± .008)
EIA
± 0.20
± (.008)
0.9
(.035)
1.1
(.043)
1.4
(.055)
1.5
(.059)
2.3
(.091)
2.3
(.091)
COMPONENT
B
F* ± 0.1 S* ± 0.3 (Ref) ± 0.15
± (.006)
± (.004)
± (.012)
1.2
(.047)
2.2
(.087)
2.2
(.087)
2.4
(.094)
2.4
(.094)
4.1
(.161)
0.8
(.031)
0.8
(.031)
1.3
(.051)
1.3
(.051)
1.3
(.051)
1.3
(.051)
0.4
(.016)
0.4
(.016)
0.5
(.020)
0.5
(.020)
0.5
(.020)
0.5
(.020)
P
R
T
A
G
E
(Ref) (Ref) (Ref) (Min) (Ref) (Ref)
X
(Ref)
0.10 ± 0.10
(.004 ± .004)
0.10 ± 0.10
(.004 ± .004)
0.10 ± 0.10
(.004 ± .004)
0.10 ± 0.10
(.004 ± .004)
0.10 ± 0.10
(.004 ± .004)
0.10 ± 0.10
(.004 ± .004)
0.4
(.016)
0.5
(.020)
0.9
(.035)
0.9
(.035)
1.7
(.067)
0.9
(.035)
0.4
(.016)
1.0
(.039)
1.0
(.039)
1.0
(.039)
1.0
(.039)
1.0
(.039)
0.13
(.005)
0.13
(.005)
0.13
(.005)
0.13
(.005)
0.13
(.005)
0.13
(.005)
0.8
(.031)
1.1
(.043)
2.5
(.098)
3.8
(.150)
3.8
(.150)
3.8
(.150)
1.1
(.043)
1.8
(.071)
2.8
(.110)
3.5
(.138)
3.5**
(.138)
3.5
(.138)
1.3
(.051)
2.2
(.087)
2.4
(.094)
3.5
(.138)
3.5**
(.138)
3.5
(.138)
Notes: 1. Metric dimensions govern.
2. (Ref) - Dimensions provided for reference only.
* Mil-C-55365/8 Specified Dimensions
** Round Glue Pad: 2.9 ±0.1mm (0.114" ±0.004") in diameter at KEMET’s option
LOW PROFILE T491 DIMENSIONS
Millimeters (inches)
CASE SIZE
COMPONENT
KEMET
EIA
L
W
H Max.
K Min.
F ± 0.1
S ± 0.3
X
(Ref)
T
(Ref)
A
(Min)
G
(Ref)
E
(Ref)
R
2012-12
S
3216-12
2.0 ± 0.2
(.079 ± .008)
3.2 ± 0.2
(.126 ± .008)
3.5 ± 0.2
(.138 ± .008)
6.0 ± 0.3
(.236 ± .012)
7.3 ± 0.3
(.287 ± .012)
1.3 ± 0.2
(.051 ± .008)
1.6 ± 0.2
(.063 ± .008)
2.8 ± 0.2
(.110 ± .008)
3.2 ± 0.3)
(.126 ± .012)
4.3 ± 0.3
(.169 ± .012)
1.2
(.047)
1.2
(.047)
1.2
(.047)
1.5
(.059)
2.0
(.079)
0.3
(.012)
0.3
(.012)
0.3
(.012)
0.5
(.020)
0.9
(.035)
0.9
(.035)
1.2
(.047)
2.2
(.087)
2.2
(.087)
2.4
(.094)
0.5
(.020)
0.8
(.031)
0.8
(.031)
1.3
(.051)
1.3
(.051)
0.05
(.002)
0.05
(.002)
0.05
(.002)
0.05
(.002)
0.05
(.002)
0.13
(.005)
0.13
(.005)
0.13
(.005)
0.13
(.005)
0.13
(.005)
0.8
(.031)
0.8
(.031)
1.1
(.043)
2.5
(.098)
3.8
(.150)
0.5
(.020)
1.1
(.043)
1.8
(.071)
2.8
(.110)
3.5
(.138)
0.8
(.031)
1.3
(.051)
2.2
(.087)
2.4
(.094)
3.5
(.138)
T
U
V
3528-12
6032-15
7343-20
Notes: 1. Metric dimensions govern.
2. (Ref) - Dimensions provided for reference only.
3. No dimensions provided for B, P or R because low profile cases do not have a bevel or a notch.
T491 ORDERING INFORMATION
T 491 B 105 M 035 A S*
Tantalum
Series
T491 - Precision Molded
Case Size
A, B, C, D, E, R, S, T, U, V, X
Capacitance Picofarad Code
First two digits represent significant figures.
Third digit specifies number of zeros to follow.
*Part number example: T491B105M035AS (14 digits - no spaces)
Lead Material
S - Standard Solder -Coated (90% Sn/10% Pb)
G - Gold Plated (A, B, C, D, X only)
T - 100% Tin (Sn) Plated and Reflowed
Failure Rate
A - Not Applicable
Voltage
Capacitance Tolerance
M - ± 20%
K - ± 10%
KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-6300
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