Tantalum Surface Mount Capacitors – Low ESR
T494 Industrial Grade MnO
2
Overview
The KEMET T494 is a lower ESR version of the popular
T491, designed specifically for today’s highly automated
surface mount processes and equipment. The T494
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 T494 is classified as MSL (Moisture
Sensitivity Level) 1 under J STD 020: unlimited floorlife
time at ≤ 30°C/85% RH. The T494 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. Standard packaging of these devices is tape-and-
reel in accordance with EIA 481. This system provides perfect
compatibility with all tape-fed placement units.
Benefits
• Meets or exceeds EIA Standard 535BAAC
• Taped and reeled per EIA 481
• Symmetrical, compliant terminations
• Optional gold-plated terminations
• Laser-marked case
• 100% surge current test on C, D, E, U, V, and X sizes
• Halogen-free epoxy
• Capacitance values of 0.1 to 1,000 μF
• Tolerances of ±10% and ±20%
• Voltage rating of 2.5 – 50 VDC
• Extended range values
• Low profile case sizes
• RoHS compliant and lead-free terminations
• Operating temperature range of −55°C to +125°C
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Applications
Typical applications include decoupling and filtering in industrial and 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, Gold-plated or Non-magnetic
100% Sn solder.
One world. One KEMET
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
T2008_T494 • 3/19/2018
1
Tantalum Surface Mount Capacitors – Low ESR
T494 Industrial Grade MnO
2
K-SIM
For a detailed analysis of specific part numbers, please visit ksim.kemet.com to access KEMET's K-SIM software. KEMET
K-SIM is designed to simulate behavior of components with respect to frequency, ambient temperature, and DC bias levels.
Ordering Information
T
Capacitor
Class
T=
Tantalum
494
Series
Industrial
– Low ESR
T
Case
Size
A, B,
C, D,
E, S,
T, U,
V, X
336
Capacitance
Code (pF)
First two digits
represent significant
figures. Third digit
specifies number of
zeros.
M
004
A
Failure
Rate/
Design
A=
N/A
T
Termination Finish
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)
Packaging
(C-Spec)
Blank = 7" reel
7280 = 13" reel
Capacitance Rated Voltage
Tolerance
(VDC)
K = ±10%
M = ±20%
2R5 = 2.5
003 = 3
004 = 4
006 = 6.3
010 = 10
016 = 16
020 = 20
025 = 25
035 = 35
050 = 50
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 – 1,000 µF at 120 Hz/25°C
K tolerance (10%), M tolerance (20%)
2.5 – 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
T2008_T494 • 3/19/2018
2
Tantalum Surface Mount Capacitors – Low ESR
T494 Industrial Grade MnO
2
Qualification
Test
Endurance
Condition
Δ C/C
85°C at rated voltage, 2,000 hours
125°C at 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,
−55°C to 125°C, 1,000 cycles
DF
DCL
ESR
+25°C
Extreme temperature exposure at a
succession of continuous steps at +25°C,
−55°C, +25°C, +85°C, +125°C, +25°C.
Δ C/C
DF
DCL
85°C, 1.32 x rated voltage 1,000 cycles
(125°C, 1.2 x rated voltage).
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 at 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
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
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
T2008_T494 • 3/19/2018
3
Tantalum Surface Mount Capacitors – Low ESR
T494 Industrial Grade MnO
2
Electrical Characteristics
ESR vs. Frequency
1,000
T494C476M006AT_IMP
Capacitance vs. Frequency
1,000
T494C476M006AT
T494D337M010AT
100
T494D337M010AT_IMP
T494B106M020AT_IMP
T494C476M006AT_ESR
Impedance, ESR (Ohms)
100
T494B106M020AT
10
T494D337M010AT_ESR
T494B106M020AT_ESR
Capacitance (μF)
10
1
0.1
1
0.01
100
1,000
10,000
Frequency (HZ)
100,000
1,000,000
10,000,000
0.1
100
1,000
10,000
Frequency (Hz)
100,000
1,000,000
10,000,000
Dimensions – Millimeters (Inches)
Metric will govern
CATHODE (-) END VIEW
W
H
X
T
S
G
S
Termination cutout
at KEMET's option,
either end
SIDE VIEW
B
B
ANODE (+) END VIEW
BOTTOM VIEW
A
E
P
R
L
F
Case Size
KEMET
A
B
C
D
X
E
S
T
U
V
EIA
L
W
H
F ±0.1
±(0.004)
1.2
(0.047)
2.2
(0.087)
2.2
(0.087)
2.4
(0.094)
2.4
(0.094)
4.1
(0.161)
1.2
(0.047)
2.2
(0.087)
2.2
(0.087)
2.4
(0.094)
Component
S
0.80 (0.032)
+0.2 (0.008)
/−0.3(0.011)
0.80 (0.032)
+0.1 (0.004)
/−0.3(0.011)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
0.80 (0.032)
+0.2 (0.008)
/−0.3(0.011)
0.80 (0.032)
+0.1 (0.004)
/−0.3(0.011)
1.30 (0.051)
±0.3 (0.011)
1.30 (0.051)
±0.3 (0.011)
B ±0.15
(Ref)
±0.006
0.4
(0.016)
0.4
(0.016)
0.5
(0.020)
0.5
(0.020)
0.5
(0.020)
0.5
(0.020)
N/A
N/A
N/A
N/A
X (Ref)
P
R
T
A
G
E
(Ref) (Ref) (Ref) (Min) (Ref) (Ref)
3.2 ±0.2
1.6 ±0.2
1.6 ±0.2
3216–18
(0.126 ±0.008) (0.063 ±0.008) (0.063 ±0.008)
3.5 ±0.2
3528–21
(0.138 ±0.008)
6.0 ±0.3
6032–28
(0.236 ±0.012)
7.3 ±0.3
7343–31
(0.287 ±0.012)
7343–
43
7.3 ±0.3
(0.287 ±0.012)
2.8 ±0.2
(0.110 ±0.008)
3.2 ±0.3
(0.126 ±0.012)
4.3 ±0.3
(0.169 ±0.012)
4.3 ±0.3
(0.169 ±0.012)
1.9 ±0.2
(0.075 ±0.008)
2.5 ±0.3
(0.098 ±0.012)
2.8 ±0.3
(0.110 ±0.012)
4.0 ±0.3
(0.157 ±0.012)
3.6 ±0.2
(0.142 ±0.008)
1.2
(0.047)
1.2
(0.047)
1.5
(0.059)
2.0
(0.079)
0.10 ±0.10
0.4
0.4
0.13
1.2
1.1
1.3
(0.004 ±0.004) (0.016) (0.016) (0.005) (0.047) (0.043) (0.051)
0.10 ±0.10
0.5
1.0
0.13
1.9
1.8
2.2
(0.004 ±0.004) (0.020) (0.039) (0.005) (0.075) (0.071) (0.087)
0.10 ±0.10
0.9
1.0
0.13
2.9
(0.004 ±0.004) (0.035) (0.039) (0.005) (0.114)
0.10 ±0.10
0.9
1.0
0.13
3.6
(0.004 ±0.004) (0.035) (0.039) (0.005) (0.142)
0.10 ±0.10
1.7
1.0
0.13
3.6
(0.004 ±0.004) (0.067) (0.039) (0.005) (0.142)
0.10 ±0.10
(0.004 ±0.004)
0.05
(0.002)
0.05
(0.002)
0.05
(0.002)
0.05
(0.002)
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.13
3.6
(0.005) (0.142)
2.8
2.4
(0.110) (0.094)
3.5
(0.138)
3.5
(0.138)
3.5
(0.138)
3.5
(0.138)
3.5
(0.138)
3.5
(0.138)
7.3 ±0.3
6.0 ±0.3
7360-38
(0.287 ±0.012) (0.236 ±0.012)
3.2 ±0.2
1.6 ±0.2
3216–12
(0.126 ±0.008) (0.063 ±0.008)
3.5 ±0.2
3528–12
(0.138 ±0.008)
6.0 ±0.3
6032–15
(0.236 ±0.012)
7.3 ±0.3
7343-20
(0.287 ±0.012)
2.8 ±0.2
(0.110 ±0.008)
3.2 ±0.2
(0.110 ±0.008)
4.3 ±0.3
(0.169 ±0.012)
0.13
1.2
1.1
1.3
(0.005) (0.047) (0.043) (0.051)
0.13
1.9
1.8
2.2
(0.005) (0.075) (0.071) (0.087)
0.13
2.9
(0.005) (0.114)
0.13
3.6
(0.005) (0.142)
2.8
2.4
(0.110) (0.094)
3.5
(0.138)
3.5
(0.138)
Notes: (Ref) – Dimensions provided for reference only. For low profile cases, no dimensions are provided for B, P or R because these cases do not have a
bevel or a notch.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
T2008_T494 • 3/19/2018
4
Tantalum Surface Mount Capacitors – Low ESR
T494 Industrial Grade MnO
2
Table 1 – Ratings & Part Number Reference
Rated Rated
Voltage Cap
VDC at 85°C
2.5
2.5
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
VDC at 85°C
µF
100
220
33
3.3
4.7
6.8
6.8
10
10
10
15
15
15
15
22
22
22
22
22
33
33
33
33
33
47
47
47
47
47
68
68
68
68
68
100
100
100
100
100
100
150
150
150
150
220
µF
Case
Code/
Case
Size
KEMET/EIA
T/3528-12
D/7343-31
A/3216-18
A/3216-18
A/3216-18
A/3216-18
S/3216-12
B/3528-21
A/3216-18
S/3216-12
B/3528-21
A/3216-18
T/3528-12
S/3216-12
C/6032-28
B/3528-21
A/3216-18
S/3216-12
T/3528-12
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
C/6032-28
U/6032-15
B/3528-21
A/3216-18
D/7343-31
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
V/7343-20
C/6032-28
B/3528-21
V/7343-20
KEMET/EIA
KEMET Part
Number
(See below for
part options)
T494T107(1)2R5A(2)
T494D227(1)2R5A(2)
T494A336(1)003A(2)
T494A335(1)004A(2)
T494A475(1)004A(2)
T494A685(1)004A(2)
T494S685(1)004A(2)
T494B106(1)004A(2)
T494A106(1)004A(2)
T494S106(1)004A(2)
T494B156(1)004A(2)
T494A156(1)004A(2)
T494T156(1)004A(2)
T494S156(M)004A(2)
T494C226(1)004A(2)
T494B226(1)004A(2)
T494A226(1)004A(2)
T494S226(M)004A(2)
T494T226(1)004A(2)
T494C336(1)004A(2)
T494U336(1)004A(2)
T494B336(1)004A(2)
T494A336(1)004A(2)
T494T336(M)004A(2)
T494C476(1)004A(2)
T494U476(1)004A(2)
T494B476(1)004A(2)
T494A476(M)004A(2)
T494T476(M)004A(2)
T494D686(1)004A(2)
T494C686(1)004A(2)
T494U686(1)004A(2)
T494B686(1)004A(2)
T494A686(1)004A(2)
T494D107(1)004A(2)
T494C107(1)004A(2)
T494U107(1)004A(2)
T494B107(M)004A(2)
T494A107(M)004A(2)
T494T107(M)004A(2)
T494D157(1)004A(2)
T494V157(1)004A(2)
T494C157(1)004A(2)
T494B157(1)004A(2)
T494V227(1)004A(2)
(See below for
part options)
DC
Leakage
µA at 20°C
Max/5 Min
2.5
5.5
1.0
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
2.7
4.0
4.0
4.0
4.0
4.0
4.0
6.0
6.0
6.0
6.0
8.8
µA at 20°C
Max/5 Min
DF
% at 20°C
120 Hz Max
24.0
8.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
10.0
6.0
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
% at 20°C
120 Hz Max
ESR
Ω at 20°C
100 kHz
Max
3.5
0.2
2.0
4.0
3.5
3.0
7.0
1.2
2.0
9.0
1.2
1.5
2.0
9.0
0.5
0.6
1.5
8.0
2.5
0.5
0.6
0.5
3.0
3.5
0.5
0.6
0.5
2.0
4.0
0.20
0.25
0.60
2.00
3.00
0.20
0.20
1.00
0.65
3.00
4.50
0.15
0.20
0.30
1.00
0.30
Ω at 20°C
100 kHz
Max
Maximum Allowable
Ripple Current
mA at 25°C
100 kHz
141
866
194
137
146
158
93
266
194
82
266
224
187
82
469
376
224
87
167
469
387
412
158
141
469
387
412
194
132
866
663
387
206
158
866
742
300
362
158
125
1000
791
606
292
645
mA at 25°C
100 kHz
mA at
85°C 100
kHz
127
779
175
123
131
142
84
239
175
74
239
202
168
74
422
338
202
78
150
422
348
371
142
127
422
348
371
175
119
779
597
348
185
142
779
668
270
326
142
113
900
712
545
263
581
mA at
85°C 100
kHz
mA at
125°C 100
kHz
56
346
78
55
58
63
37
106
78
33
106
90
75
33
188
150
90
35
67
188
155
165
63
56
188
155
165
78
53
346
265
155
82
63
346
297
120
145
63
50
400
316
242
117
258
mA at
125°C 100
kHz
Maximum
Operating
Temp
°C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
°C
MSL
Reflow Temp
≤ 260°C
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
Reflow Temp
≤ 260°C
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current
Maximum
Operating
Temp
MSL
(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).
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
T2008_T494 • 3/19/2018
5
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