Tantalum Surface Mount Capacitors – Automotive
T491 Industrial Grade MnO
2
Series
Overview
The KEMET T491 Series, designed specifically for today’s
highly automated surface mount processes and equipment,
is the leading choice for surface mount designs. The T491
combines KEMET’s proven solid tantalum technology,
acclaimed and respected throughout the world, with the latest in
materials, processes and automation, resulting in unsurpassed
total performance and value. This product meets or exceeds the
requirements of EIA standard 535BAAC. The physical outline
and dimensions of this serie conform to this global standard.
Five low profiles case sizes are available The T491 standard
terminations are available in 100% matte tin and provide excellent
wetting characteristics and compatibility with today's surface
mount solder systems. Tin/lead (Sn/Pb) terminations are available
upon request for any part number. Gold-plated terminations
are also available for use with conductive epoxy attachment
processes. The symmetrical terminations offer total compliancy
to provide the thermal and mechanical stress relief required with
today's technology. Standard packaging of these devices is tape
and reel in accordance with EIA 481–1. This system provides
perfect compatibility with all tape-fed placement units.
Benefits
•
•
•
•
•
•
•
•
•
•
•
•
•
•
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
Halogen-free epoxy
Capacitance values of 0.1
µF
to 470
µF
Tolerances of ±10% and ±20%
Voltage rating of 6.3 – 50 VDC
Extended range values
Low profile case sizes
RoHS Compliant and lead-free terminations
Operating temperature range of -55ºC to +125ºC
Applications
Typical applications include decoupling and filtering in automotive
end applications such as DC/DC converters, portable electronics,
telecommunications, and control units.
Environmental Compliance
RoHS Compliant (6/6) according to Directive 2002/95/EC when ordered with 100% Sn solder.
One world. One KEMET
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
T2050_T491_AUTO • 7/18/2013
1
Tantalum Surface Mount Capacitors – Automotive
T491 Industrial Grade MnO
2
Series
SPICE
For a detailed analysis of specific part numbers, please visit www.kemet.com for a free download of KEMET's SPICE software.
The KEMET SPICE program is freeware intended to aid design engineers in analyzing the performance of these capacitors over
frequency, temperature, ripple, and DC bias conditions.
Ordering Information
T
Capacitor
Class
T=
Tantalum
491
Series
Industrial
X
Case Size
A, B, C, D,
E, S, T, U,
V, X
157
Capacitance
Code (pF)
First two digits
represent
significant
figures. Third
digit specifies
number of
zeros.
K
Capacitance
Tolerance
K = ±10%
M = ±20%
020
Voltage
2R5 = 2.5 V
003 = 3 V
004 = 4 V
006 = 6.3 V
010 = 10 V
016 = 16 V
020 = 20 V
025 = 25 V
035 = 35 V
050 = 50 V
A
Failure Rate/
Design
A = N/A
T
Lead Material
T = 100% Matte Tin
(Sn) Plated*
H = Standard Solder
Coated (SnPb 5% Pb
minimum)
G = Gold Plated (A, B,
C, D, X only)
N = Non-Magnetic
100% Tin (Sn)
M = Non-Magnetic
(SnPb)
AUTO
C-Spec 1
AUTO =
Automotive
Grade
(AUTO =
AEC–Q200
Certification)
Packaging
(C-Spec)
Blank = 7" Reel
7280 = 13" Reel
Performance Characteristics
Item
Operating Temperature
Rated Capacitance Range
Capacitance Tolerance
Rated Voltage Range
DF (120 Hz)
ESR (100 kHz)
Leakage Current
-55°C to 125°C
0.1 – 470 µF @ 120 Hz/25°C
K Tolerance (10%), M Tolerance (20%)
6.3 – 50 V
Refer to Part Number Electrical Specification Table
Refer to Part Number Electrical Specification Table
≤ 0.01 CV (µA) at rated voltage after 5 minutes
Performance Characteristics
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
T2050_T491_AUTO • 7/18/2013
2
Tantalum Surface Mount Capacitors – Automotive
T491 Industrial Grade MnO
2
Series
Qualification
Test
Endurance
Condition
Δ C/C
85°C @ rated voltage, 2,000 hours
125°C @ 2/3 rated voltage, 2,000 hours
DF
DCL
ESR
Δ C/C
DF
DCL
ESR
Δ C/C
MIL–STD–202, Method 107, Condition B, mounted, -55C° to
125° C, 1,000 cycles
DF
DCL
ESR
Extreme temperature exposure at a
succession of continuous steps at +25ºC,
-55ºC, +25ºC, +85ºC, +125ºC, +25ºC.
+25°C
Δ C/C
DF
DCL
IL*
IL
IL
Δ C/C
DF
DCL
ESR
Δ C/C
DF
DCL
Characteristics
Within ±10% of initial value
Within initial limits
Within 1.25 x initial limit
Within initial limits
Within ±10% of initial value
Within initial limits
Within 1.25 x initial limit
Within initial limits
Within ±5% of initial value
Within initial limits
Within 1.25 x initial limit
Within initial limits
-55°C
±10%
IL
n/a
+85°C
±10%
1.5 x IL
10 x IL
+125°C
±20%
1.5 x IL
12 x IL
Storage Life
125°C @ 0 volts, 2,000 hours
Thermal Shock
Temperature Stability
Within ±5% of initial value
Within initial limits
Within initial limits
Within initial limits
Within ±10% of initial value
Within initial limits
Within initial limits
Surge Voltage
25°C and 85°C, 1.32 x rated voltage 1,000 cycles
(125°C, 1.2 x rated voltage).
Mechanical Shock/Vibration
*IL = Initial limit
MIL–STD–202, Method 213, Condition I, 100 G peak
MIL–STD–202, Method 204, Condition D, 10 Hz to 2,000 Hz,
20 G peak
Certification
KEMET’s Internal Qualification Plan for this Tantalum series of capacitors follows AEC–Q200 guidelines. Standard catalog part
types ordered without a specific automotive designator, i.e., suffix AUTO or four digit customer specific designator (C-Spec), are not
considered KEMET Automotive Grade tantalum capacitors.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
T2050_T491_AUTO • 7/18/2013
3
Tantalum Surface Mount Capacitors – Automotive
T491 Industrial Grade MnO
2
Series
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)
100
10
0.1
0.01
100
1,000
10,000
Frequency (Hz)
100,000
1,000,000
10,000,000
1
100
1,000
10,000
Frequency (Hz)
100,000
1,000,000
10,000,000
Dimensions – Millimeters (Inches)
Metric will govern
Termination
cutout at
KEMET’s
option,
either end
Case Size
KEMET
A
B
C
D
X
E
S
T
U
V
EIA
3216–18
Component
L*
3.2 ± 0.2
(.126 ± .008)
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)
6.0± 0.3
(.236 ± .012)
1.6 ± 0.2
(.063 ± .008)
2.8 ± 0.2
(.110 ± .008)
3.2 ± 0.2
(.110 ± .008)
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)
3.6 ± 0.2
(.142 ± .008)
1.2 (.047)
1.2 (.047)
1.5 (.059)
2.0 (.079)
F* ±0.1 S* ±0.3 B* ±0.15
±(.004) ±(.012) (Ref) ±.006
1.2 (.047)
2.2 (.087)
2.2 (.087)
2.4 (.094)
2.4 (.094)
4.1 (.161)
1.2 (.047)
2.2 (.087)
2.2 (.087)
2.4 (.094)
0.8 (.031)
0.8 (.031)
1.3 (.051)
1.3 (.051)
1.3 (.051)
1.3 (.051)
0.8 (.031)
0.8 (.031)
1.3 (.051)
1.3 (.051)
0.4 (.016)
0.4 (.016)
0.5 (.020)
0.5 (.020)
0.5 (.020)
0.5 (.020)
n/a
n/a
n/a
n/a
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)
0.05 (.002)
0.05 (.002)
0.05 (.002)
0.05 (.002)
P (Ref)
0.4 (.016)
0.5 (.020)
0.9 (.035)
0.9 (.035)
1.7 (.067)
0.9 (.035)
n/a
n/a
n/a
n/a
R (Ref)
0.4 (.016)
1.0 (.039)
1.0 (.039)
1.0 (.039)
1.0 (.039)
1.0 (.039)
n/a
n/a
n/a
n/a
T (Ref)
0.13 (.005)
A (Min) G (Ref) E (Ref)
0.8 (.31)
1.1 (.043) 1.3 (.051)
3.5 ± 02
3528–21 (.138 ± .008)
6032–28
6.0 ± 0.3
(.236 ± .03)
0.13 (.005) 1.1 (0.043) 1.8 (.071) 2.2 (.087)
0.13 (.005)
0.13 (.005)
0.13 (.005)
0.13 (.005)
2.5(.098)
3.8 (.150)
3.8 (.150)
3.8 (.150)
2.8 (.110) 2.4 (.094)
3.5 (.138) 3.5 (.138)
3.5 (.138) 3.5 (.138)
3.5 (.138) 3.5 (.138)
1.1 (.043) 1.3 (.051)
1.8 (.071) 2.2 (.087)
2.8 (.110) 2.4 (.094)
3.5 (.138) 3.5 (.138)
7.3
7343–31 (.287 ± 0.3
± .012)
7.3
7343–43 (.287 ± 0.3
± .012)
7360-38
3216–12
7.3 ± 0.3
(.287 ± .012)
3.2 ± 0.2
(.126 ± .008)
0.13 (.005) 0.8 (.031)
0.13 (.005)
0.13 (.005)
0.13 (.005)
1.1 (.043)
2.5(.098)
3.8 (.150)
3.5 ± 0.2
3528–12 (.138 ± .008)
6.0
6032–15 (.236 ± 0.3
± .012)
7343–20
7.3 ± 0.3
(287 ± .012)
Notes: (Ref) – Dimensions provided for reference only. No dimensions are provided for B, P or R because low profile cases do not have a bevel or a notch.
* MIL–PRF–55365/8 specified dimensions
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
T2050_T491_AUTO • 7/18/2013
4
Tantalum Surface Mount Capacitors – Automotive
T491 Industrial Grade MnO
2
Series
Table 1 – Ratings & Part Number Reference
Rated Voltage
VDC
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
10
10
10
10
10
10
10
10
10
10
VDC
Rated Cap
µF
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
1.5
2.2
2.2
3.3
4.7
4.7
6.8
6.8
10
10
10
15
15
15
µF
Case Code/ Case
Size
KEMET/EIA
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
B/3528-21
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
KEMET/EIA
KEMET Part Number
(See below for
part options)
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(1)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
T491A155(1)010A(2)AUTO
T491A225(1)010A(2)AUTO
T491B225(1)010A(2)AUTO
T491A335(1)010A(2)AUTO
T491A475(1)010A(2)AUTO
T491B475(1)010A(2)AUTO
T491A685(1)010A(2)AUTO
T491B685(1)010A(2)AUTO
T491A106(1)010A(2)AUTO
T491B106(1)010A(2)AUTO
T491C106(1)010A(2)AUTO
T491A156(1)010A(2)AUTO
T491B156(1)010A(2)AUTO
T491C156(1)010A(2)AUTO
(See below for
part options)
DC
Leakage
µAmps +20ºC
Max/5 Min
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
0.5
0.5
0.7
0.7
1.0
1.0
1.0
1.5
1.5
1.5
µAmps +20ºC
Max/5 Min
DF
% @ +20ºC
120 Hz Max
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
6
6
6
6
6
6
6
6
6
6
6
8
6
6
% @ +20ºC
120 Hz Max
ESR
Ω @ 20ºC
100 kHz Max
8
8
6
6
3.5
4
3.5
3.5
3.5
1.8
4
3.5
1.8
2.5
3
1.8
3.5
2
1.6
0.8
4
0.9
1.2
0.8
3.0
0.9
0.8
1.2
0.7
1.2
0.7
0.7
0.4
0.4
0.5
0.4
0.4
8
8
3.5
6
5
3.5
4
3.5
4
3.5
1.8
6
2.8
1.8
Ω @ 20ºC
100 kHz Max
Rated Voltage
Rated Cap
Case Code/ Case
Size
KEMET Part Number
DC
Leakage
DF
ESR
(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.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
T2050_T491_AUTO • 7/18/2013
5
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