Type T491
Solid Tantalum Chip Capacitors
Solid Tantalum Chip Capacitors for Surface Mount Applications
The T491 Series’ physical outline and dimen-
sions conform to the global standard for tanta-
lum capacitor chips, and the T491 exceeds the
requirements of EIA standard 535BAAC. T491
chips are specifically for automated surface
mount processes and equipment. The termina-
tions are Tin-Lead (SnPb) and 100% Matte-Tin
terminations are also available. Reliability and
thermal stability are assured by lead-frame at-
tachments to the tantalum pellet made by micro-
processor-controlled welding and a high tem-
perature silver epoxy adhesive. Standard pack-
aging is compatible with all tape-fed placement
units and with EIA RS- 481-1 tape and reel speci-
fication.
Highlights
♦
♦
♦
♦
♦
Low DF and DC Leakage
Temperature Stable
260 ºC for 10 Seconds Soldering
Meets IECQ Standard
QC300801/US0001
Meets EIA Standard 535BAAC
Specifications
0.10 µF to
330
µF
4 Vdc to 50 VDC
±10% standard, ±20% available
–55 ºC to +125 ºC (with proper derating)
–10% @ –55 ºC; +10% @ +85 ºC;
+12% @ +125 ºC
DC Leakage:
At 25 ºC — See Ratings
At 85 ºC — 10 x 25 ºC limit
At 125 ºC — 12 x 25 ºC limit
Dissipation Factor:
0.1 µF to 1.0 µF — 4%
1.5 µF to 68 µF — 6%
100 µF to
330
µF — 8%
Standard Packaging Tape and Reel:
EIA RS-481-1
Case
Code
Complies with the EU Directive
2002/95/EC requirement
restricting the use of Lead (Pb),
Mercury (Hg), Cadmium (Cd),
Hexavalent chromium (Cr(VI)),
PolyBrominated Biphenyls (PBB)
and PolyBrominated Diphenyl
Ethers (PBDE).
S
T
A
B
C
D
X
Capacitance Range:
Voltage Range:
Tolerance:
Operating Temperature:
Cap Change From Initial Limit:
EIA
IECQ
3216L
3528L
3216
3528
6032
7343
7343H
Qty per
7" Reel
2,500
2,500
2,000
2,000
500
500
500
Tape
Width
8mm
8mm
8mm
8mm
12mm
12mm
12mm
Pitch
4mm
4mm
4mm
4mm
8mm
8mm
8mm
13” Reels Available on Special Order
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830•
www.cde.com
Type T491
Solid Tantalum Chip Capacitors
Capacitor Outline Drawing
Cathode (–) End
View
W
H
K
X
S
T
G
S
R
P
Notch at
Supplier’s Option
Side View
B
B
Anode (+) End
View
Bottom View
A
E
F
L
Dimensions
EIA/
CDE IECQ
A
B
C
D
X
3216-18
3528-21
6032-28
7343-31
7343-43
Millimeters (Inches)
L
W
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)
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)
K
0.9 ± 0.2
1.1 ± 0.2
1.4 ± 0.2
1.5 ± 0.2
2.3 ± 0.2
F
1.2 ± 0.1
2.2 ± 0.1
2.2 ± 0.1
2.4 ± 0.1
2.4 ± 0.1
S
0.8 ± 0.3
0.8 ± 0.3
1.3 ± 0.3
1.3 ± 0.3
1.3 ± 0.3
B
(Ref)
0.4 ± 0.15
0.4 ± 0.15
0.5 ± 0.15
0.5 ± 0.15
0.5 ± 0.15
X
(Ref)
0.10 ± 0.10
0.10 ± 0.10
0.10 ± 0.10
0.10 ± 0.10
0.10 ± 0.10
P
R
(Ref) (Ref)
0.4
0.5
(0.02)
0.9
0.9
1.7
0.4
1
(0.039)
1
1
1
T
(Ref)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
0.13
(0.005)
A
(Min)
0.8
(0.031)
1.1
(0.043)
2.5
(0.098)
3.8
(0.15}
3.8
(0.15)
G
(Ref)
1.1
(0.043)
1.8
(0.071)
2.8
(0.11)
3.5
(0.138)
3.5**
(0.138}
E
(Ref)
1.3
(0.051)
2.2
(0.087)
2.9
(0.114)
3.5
(0.138}
3.5**
(0.138)
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)
(.035 ± .008) (.047 ± .004) (.031 ± .012)
(.043 ± .008) (.087 ± .004) (.031 ± .012)
(.055 ± .008) (.087 ± .004) (.051 ± .012)
(.059 ± .008) (.094 ± .004) (.051 ± .012)
(.091 ± .008) (.094 ± .004) (.051 ± .012)
(.016 ± .006) (.004 ± .004) (0.016) (0.016)
(.016 ± .006) (.004 ± .004)
(.020 ± .006) (.004 ± .004) (0.035) (0.039)
(.020 ± .006) (.004 ± .004) (0.035) (0.039)
(.020 ± .006) (.004 ± .004) (0.067) (0.039)
Notes:
1 Metric dimensions govern
2 (Ref) - Dimensions provided for reference only
** Round Glue Pad 2.9 ±0.1mm (.114 ±.004) in diameter at Supplier's option
Low Profile Capacitor Dimensions
EIA/
CDE IECQ
S
T
3216-12
3528-12
Millimeters (Inches)
F
1.2 ± 0.1
2.2 ± 0.1
L
3.2 ± 0.2
3.5 ± 0.2
W
1.6 ± 0.2
2.8 ± 0.2
H Max.
1.2
(0.047)
1.2
(0.047)
K Min.
0.3
(0.012)
0.3
(0.012)
S
0.8 ± 0.3
0.8 ± 0.3
B
(Ref)
Note
3
Note
3
X
(Ref)
0.05
(0.002)
0.05
(0.002)
P
R
T
A
G
E
(Ref) (Ref) (Ref) (Min) (Ref) (Ref)
Note
3
Note
3
Note
3
Note
3
0.13
(0.005)
0.13
(0.005)
0.8
(0.031)
1.1
(0.043)
1.1
1.8
1.3
2.2
(0.043) (0.051)
(0.071) (0.087)
(.126 ± .008) (.063 ± .008)
(.138 ± .008) (.110 ± .008)
(.047 ± .004) (.031 ± .012)
(.087 ± .004) (.031 ± .012)
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 notch
Part Numbering System
T491
A
106
K
025
Voltage
A
Failure Rate
Level
S
–F
RoHS
Compliant
(100%
Matte Tin finish
on terminals)
Series Case Capacitance Tolerance
T491
S, D
T, X
105
= 1.0 µF
226
= 22 µF
K
= ±10%
M
= ±20%
004
= 4 Vdc
A
= Not Applicable
035
= 35 Vdc
A, B, C 227
= 220 µF
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830•
www.cde.com
Type T491
Solid Tantalum Chip Capacitors
Ratings
Max. DC Max. DF %
Case Code
Max. DC Max. DF %
Case Code
Catalog
Catalog
Leakage
@ 25 ºC
Cap
EIA
Leakage
@ 25 ºC
Cap
EIA
CDE
Part Number
CDE
Part Number
µA @ 25 ºC 120 Hz
(µF)
IECQ
µA @ 25 ºC 120 Hz
(µF)
IECQ
4 WVdc @ +85 ºC
(2.7 WVdc @ 125 ºC)
16 WVdc @ +85 ºC
(10 WVdc @ 125 ºC)
15
33
68
100
100
150
4.7
4.7
6.8
6.8
10
10
10
22
22
33
47
47
68
100
150
220
220
330
2.2
3.3
3.3
4.7
4.7
6.8
6.8
6.8
10
10
15
22
33
47
47
68
100
150
220
T
B
C
C
D
D
A
S
A
B
A
B
T
B
C
C
C
D
C
D
D
X
D
X
A
A
S
A
B
A
B
T
B
C
B
C
C
C
D
D
D
X
X
3528L
3528
6032
6032
7343
7343
3216
3216L
3216
3528
3216
3528
3528L
3528
6032
6032
6032
7343
6032
7343
7343
7343H
7343
7343H
3216
3216
3216L
3216
3528
3216
3528
3528L
3528
6032
3528
6032
6032
6032
7343
7343
7343
7343H
7343H
T491T156K004AS
T491B336K004AS
T491C686K004AS
T491C107K004AS
T491D107K004AS
T491D157K004AS
T491A475K006AS
T491S475K006AS
T491A685K006AS
T491B685K006AS
T491A106K006AS
T491B106K006AS
T491T106K006AS
T491B226K006AS
T491C226K006AS
T491C336K006AS
T491C476K006AS
T491D476K006AS
T491C686K006AS
T491D107K006AS
T491D157K006AS
T491X227K006AS
T491D227K006AS
T491X337K006AS
T491A225K010AS
T491A335K010AS
T491S335K010AS
T491A475K010AS
T491B475K010AS
T491A685K010AS
T491B685K010AS
T491T685K010AS
T491B106K010AS
T491C106K010AS
T491B156K010AS
T491C226K010AS
T491C336K010AS
T491C476K010AS
T491D476K010AS
T491D686K010AS
T491D107K010AS
T491X157K010AS
T491X227K010AS
0.6
1.3
2.7
4
4
6
0.5
0.5
0.5
0.5
0.6
0.6
0.6
1.4
1.4
2
2.9
2.9
4.1
6
9
13.2
13.2
19.8
0.5
0.5
0.5
0.5
0.5
0.7
0.7
0.7
1
1
1.5
2.2
3.3
4.7
4.7
6.8
10
15
22
6
6
6
8
8
8
6
6
6
6
6
6
6
6
6
6
6
6
6
8
8
8
8
8
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
8
8
8
1.0
1.5
1.5
2.2
2.2
3.3
3.3
3.3
4.7
4.7
6.8
6.8
10
15
15
22
22
33
47
68
100
1.0
2.2
2.2
3.3
3.3
4.7
4.7
4.7
6.8
6.8
10
10
15
22
22
33
33
47
68
100
150
A
A
S
A
B
A
B
T
B
C
B
C
C
C
D
C
D
D
D
X
X
A
A
S
A
B
A
B
T
B
C
B
C
C
C
D
C
D
D
D
X
X
3216
3216
3216L
3216
3528
3216
3528
3528L
3528
6032
3528
6032
6032
6032
7343
6032
7343
7343
7343
7343H
7343H
3216
3216
3216L
3216
3528
3216
3528
3528L
3528
6032
3528
6032
6032
6032
7343
6032
7343
7343
7343
7343H
7343H
T491A105K016AS
T491A225K016AS
T491S225K016AS
T491A335K016AS
T491B335K016AS
T491A475K016AS
T491B475K016AS
T491T475K016AS
T491B685K016AS
T491C685K016AS
T491B106K016AS
T491C106K016AS
T491C156K016AS
T491C226K016AS
T491D226K016AS
T491C336K016AS
T491D336K016AS
T491D476K016AS
T491D686K016AS
T491X107K016AS
T491X157K016AS
T491A105K020AS
T491A155K020AS
T491S155K020AS
T491A225K020AS
T491B225K020AS
T491A335K020AS
T491B335K020AS
T491T335K020AS
T491B475K020AS
T491C475K020AS
T491B685K020AS
T491C685K020AS
T491C106K020AS
T491C156K020AS
T491D156K020AS
T491C226K020AS
T491D226K020AS
T491D336K020AS
T491D476K020AS
T491X686K020AS
T491X107K020AS
0.5
0.5
0.5
0.5
0.5
0.8
0.8
0.8
1.1
1.1
1.6
1.6
2.4
3.6
3.6
5.3
5.3
7.5
10.9
16
24
0.5
0.5
0.5
0.5
0.5
0.7
0.7
0.7
1
1
1.4
1.4
2
3
3
4.4
4.4
6.6
9.4
13.6
20
4
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
8
8
4
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
8
6 WVdc @ +85 ºC
(4 WVdc @ 125 ºC)
20 WVdc @ +85 ºC
(13 WVdc @ 125 ºC)
10 WVdc @ +85 ºC
(7 WVdc @ 125 ºC)
N
ote:
CDE reserves the right to offer higher rated voltage substitutes
within the same case size. The marking will indicate the higher voltage.
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830•
www.cde.com
Type T491
Solid Tantalum Chip Capacitors
Max. DC Max. DF %
Case Code
Catalog
Leakage
@ 25 ºC
Cap
EIA
CDE
Part Number
µA @ 25 ºC 120 Hz
(µF)
IECQ
25 WVdc @ +85 ºC
(17 WVdc @ 125 ºC)
0.47
0.68
1.0
1.0
1.5
2.2
2.2
3.3
4.7
6.8
10
10
15
22
33
0.10
0.15
0.22
0.33
0.47
0.47
0.68
1.0
1.5
2.2
3.3
4.7
4.7
6.8
10
15
22
A
A
A
B
B
B
C
C
C
C
C
D
D
D
X
A
A
A
A
A
B
B
B
C
C
C
C
D
D
D
X
X
3216
3216
3216
3528
3528
3528
6032
6032
6032
6032
6032
7343
7343
7343
7343H
3216
3216
3216
3216
3216
3528
3528
3528
6032
6032
6032
6032
7343
7343
7343
7343H
7343H
T491A474K025AS
T491A684K025AS
T491A105K025AS
T491B105K025AS
T491B155K025AS
T491B225K025AS
T491C225K025AS
T491C335K025AS
T491C475K025AS
T491C685K025AS
T491C106K025AS
T491D106K025AS
T491D156K025AS
T491D226K025AS
T491X336K025AS
T491A104K035AS
T491A154K035AS
T491A224K035AS
T491A334K035AS
T491A474K035AS
T491B474K035AS
T491B684K035AS
T491B105K035AS
T491C155K035AS
T491C225K035AS
T491C335K035AS
T491C475K035AS
T491D475K035AS
T491D685K035AS
T491D106K035AS
T491X156K035AS
T491X226K035AS
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.9
1.2
1.7
2.5
2.5
3.8
5.5
8.3
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
1.2
1.7
1.7
2.4
3.5
5.3
7.7
4
4
4
4
6
6
6
6
6
6
6
6
6
6
6
4
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
6
Case Code
Max. DC Max. DF %
Catalog
Cap
EIA
Leakage
@ 25 ºC
CDE
Part Number
(µF)
IECQ
µA @ 25 ºC 120 Hz
50 WVdc @ +85 ºC
(33 WVdc @ 125 ºC)
0.10
0.15
0.15
0.22
0.33
0.47
0.47
0.68
1.0
1.5
1.5
2.2
3.3
4.7
6.8
A
A
B
B
B
B
C
C
C
C
D
D
D
D
X
3216
3216
3528
3528
3528
3528
6032
6032
6032
6032
7343
7343
7343
7343
7343H
T491A104K050AS
T491A154K050AS
T491B154K050AS
T491B224K050AS
T491B334K050AS
T491B474K050AS
T491C474K050AS
T491C684K050AS
T491C105K050AS
T491C155K050AS
T491D155K050AS
T491D225K050AS
T491D335K050AS
T491D475K050AS
T491X685K050AS
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
1.1
1.7
2.4
3.5
4
4
4
4
4
4
4
4
4
6
6
6
6
6
6
35 WVdc @ +85 ºC
(23 WVdc @ 125 ºC)
Note:
CDE reserves the right to offer higher rated voltage substitutes
within the same case size. The marking will indicate the higher voltage.
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830•
www.cde.com
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