Surface Mount Aluminum Electrolytic Capacitors
EDT, +125°C
Overview
Applications
The KEMET EDT aluminum electrolytic surface mount
capacitors are designed for applications requiring high
operating temperatures of up to 125°C and a low profile
vertical chip.
Typical applications include automatic mounting and reflow
soldering.
Benefits
• Surface mount lead terminals
• Low profile vertical chip
• Operating temperature of −40°C to +125°C
• 125°C/1,000 – 2,000 hours
Part Number System
EDT
107
M
010
A
9L
AA
Series
Capacitance
Code (pF)
Tolerance
Rated Voltage
(VDC)
Electrical
Parameters
Size Code
Packaging
See Dimension
Table
AA = Tape & Reel
Surface Mount
Aluminum
Electrolytic
First two digits
represent
significant figures
for capacitance
values. Last digit
specifies the
number of zeros
to be added.
M = ±20%
010 = 10
016 = 16
025 = 25
035 = 35
050 = 50
A = Standard
S = AEC–Q200
Built Into Tomorrow
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A4054_EDT • 10/15/2021
1
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Dimensions – Millimeters
C
D
P
G
B
L
W
A
F
E
Size Code
9H
9L
9M
9P
9R
9S
Size Code
9H
9L
9M
9P
9R
9S
D
L
A/B
E
C
E
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
6.3
8.0
8.0
10.0
12.5
12.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
7.7
6.2
10.2
10.2
13.5
16.0
±0.3
±0.3
±0.3
±0.3
±0.5
±0.5
6.6
8.3
8.3
10.3
12.8
12.8
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
7.8
9.5
10.0
13.0
15.2
15.2
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
2.6
3.4
3.4
3.5
4.9
4.9
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
F
G
P
W
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
0.3
0.3
0.3
0.3
0.3
0.3
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
0.35
0.35
0.70
0.70
1.0
1.0
+0.15/−0.2
+0.15/−0.2
±0.2
±0.2
±0.2
±0.2
1.8
2.2
3.1
4.6
4.6
4.6
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
0.65
0.65
0.90
0.90
1.25
1.25
±0.1
±0.1
±0.2
±0.2
±0.2
±0.2
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A4054_EDT • 10/15/2021
2
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Environmental Compliance
As an environmentally conscious company, KEMET is working continuously with improvements concerning the environmental
effects of both our capacitors and their production. In Europe (RoHS Directive) and in some other geographical areas like
China, legislation has been put in place to prevent the use of some hazardous materials, such as lead (Pb), in electronic
equipment. All products in this catalog are produced to help our customers’ obligations to guarantee their products and fulfill
these legislative requirements. The only material of concern in our products has been lead (Pb), which has been removed
from all designs to fulfill the requirement of containing less than 0.1% of lead in any homogeneous material. KEMET will
closely follow any changes in legislation world wide and make any necessary changes in its products, whenever needed.
Some customer segments such as medical, military and automotive electronics may still require the use of lead in electrode
coatings. To clarify the situation and distinguish products from each other, a special symbol is used on the packaging labels
for RoHS compatible capacitors.
Due to customer requirements, there may appear additional markings such as lead free (LF) or lead-free wires (LFW) on the
label.
Performance Characteristics
Item
Performance Characteristics
Capacitance Range
22 – 1,000 µF
Rated Voltage
10 – 50 VDC
Operating Temperature
−40°C to +125°C
Capacitance Tolerance
±20% at 120 Hz/20°C
1,000 – 2,000 hours (see conditions in Test Method & Performance)
Life Test
I ≤ 0.01 CV or 3 µA, whichever is greater
Leakage Current
C = rated capacitance (µF), V = rated voltage (VDC). Voltage applied for 2 minutes at 20°C.
Automotive version: Part number position 11 = "S"
Vibration Test Specifications
5G maximum acceleration. Vibration applied in 3 directions
(X, Y, and Z axis). 4-hour sessions at 10 – 2,000 Hz
(Capacitor clamped by the body)
Impedance Z Characteristics at 120 Hz
Rated Voltage (VDC)
10
16
25
35
50
35
50
Z (−25°C)/Z (20°C)
2
2
2
2
2
2
2
Z (−40°C)/Z (20°C)
3
3
3
3
3
3
3
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A4054_EDT • 10/15/2021
3
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Compensation Factor of Ripple Current (RC) vs. Frequency
Rated Voltage (VDC)
Coefficient
60 Hz
120 Hz
1 kHz
10 kHz
0.85
1.00
1.10
1.20
Test Method & Performance
Conditions
Load Life Test
Shelf Life Test
125°C
125°C
Temperature
Can Ø = 6.3 x 7.7
Test Duration
Can Ø = 8 x 6.2
Can Ø ≥ 8 x 10.2 mm
Ripple Current
Voltage
Performance
Capacitance Change
Dissipation Factor
Leakage Current
1,000 hours
2,000 hours
1,000 hours
500 hours
1,000 hours
Maximum ripple current specified at 120 Hz 125°C
No ripple current applied
The sum of DC voltage and the peak AC voltage must not exceed the
rated voltage of the capacitor.
No voltage applied
The following specifications will be satisfied when the capacitor is restored to 20°C:
Within ±20% of the initial value
Does not exceed 200% of the specified value
Does not exceed specified value
Shelf Life
The capacitance, ESR and impedance of a capacitor will not change significantly after extended storage periods, however,
the leakage current will very slowly increase.
KEMET's E aluminum electrolytic capacitors should not be stored in high temperatures or where there is a high level of
humidity. The suitable storage condition for KEMET's E aluminum electrolytic capacitors is +5 to +35°C and less than 75%
in relative humidity. KEMET's E aluminum electrolytic capacitors should not be stored in damp conditions such as water,
saltwater spray or oil spray. KEMET's E aluminum electrolytic capacitors should not be stored in an environment full of
hazardous gas (hydrogen sulphide, sulphurous acid gas, nitrous acid, chlorine gas, ammonium, etc.) KEMET's E aluminum
electrolytic capacitors should not be stored under exposure to ozone, ultraviolet rays or radiation.
If a capacitor has been stored for more than 18 months under these conditions and it shows increased leakage current,
then a treatment by voltage application is recommended.
Re-Age (Reforming) Procedure
Apply the rated voltage to the capacitor at room temperature for a period of one hour, or until the leakage current has fallen
to a steady value below the specified limit. During re-aging a maximum charging current of twice the specified leakage
current or 5 mA, whichever is greater, is suggested.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
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A4054_EDT • 10/15/2021
4
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Table 1 – Ratings & Part Number Reference
VDC
VDC Surge
Voltage
Rated
Capacitance
120 Hz 20°C
(µF)
Case Size
D x L (mm)
DF
120 Hz
20°C
(tan δ %)
RC
120 Hz
125°C
(mA)
LC
20°C
2 Minutes
(µA)
Part Number
10
10
10
10
10
10
10
10
16
16
16
16
16
16
16
25
25
25
25
25
25
25
25
35
35
35
35
35
35
35
35
50
50
50
50
13
13
13
13
13
13
13
13
20
20
20
20
20
20
20
32
32
32
32
32
32
32
32
44
44
44
44
44
44
44
44
63
63
63
63
100
150
150
220
330
470
680
1000
47
100
100
150
220
330
470
47
47
100
100
100
150
220
330
22
33
33
47
47
100
150
220
22
33
47
100
8 x 6.2
6.3 x 7.7
8 x 6.2
8 x 10.2
8 x 10.2
10 x 10.2
10 x 10.2
10 x 10.2
6.3 x 7.7
6.3 x 7.7
8 x 6.2
8 x 10.2
8 x 10.2
8 x 10.2
10 x 10.2
6.3 x 7.7
8 x 6.2
6.3 x 7.7
8 x 6.2
8 x 10.2
8 x 10.2
10 x 10.2
10 x 10.2
6.3 x 7.7
6.3 x 7.7
8 x 6.2
8 x 6.2
8 x 10.2
8 x 10.2
10 x 10.2
10 x 10.2
8 x 6.2
8 x 10.2
8 x 10.2
10 x 10.2
26
26
26
26
26
26
26
26
2
2
2
2
2
2
2
18
18
18
18
18
18
18
18
14
14
14
14
14
14
14
14
12
12
12
12
75
70
75
130
130
180
180
180
70
70
75
130
130
180
180
70
75
70
75
130
130
180
180
70
70
75
75
130
130
180
180
75
130
130
180
10.0
15.0
15.0
22.0
33.0
47.0
68.0
100.0
7.5
16.0
16.0
24.0
35.2
52.8
75.2
11.8
11.8
25.0
25.0
25.0
37.5
55.0
82.5
7.7
11.6
11.6
16.5
16.5
35.0
52.5
77.0
11.0
16.5
23.5
50.0
EDT107M010(1)9LAA
EDT157M010(1)9HAA
EDT157M010(1)9LAA
EDT227M010(1)9MAA
EDT337M010(1)9MAA
EDT477M010(1)9PAA
EDT687M010(1)9PAA
EDT108M010(1)9PAA
EDT476M016(1)9HAA
EDT107M016(1)9HAA
EDT107M016(1)9LAA
EDT157M016(1)9MAA
EDT227M016(1)9MAA
EDT337M016(1)9MAA
EDT477M016(1)9PAA
EDT476M025(1)9HAA
EDT476M025(1)9LAA
EDT107M025(1)9HAA
EDT107M025(1)9LAA
EDT107M025(1)9MAA
EDT157M025(1)9MAA
EDT227M025(1)9PAA
EDT337M025(1)9PAA
EDT226M035(1)9HAA
EDT336M035(1)9HAA
EDT336M035(1)9LAA
EDT476M035(1)9LAA
EDT476M035(1)9MAA
EDT107M035(1)9MAA
EDT157M035(1)9PAA
EDT227M035(1)9PAA
EDT226M050(1)9LAA
EDT336M050(1)9MAA
EDT476M050(1)9MAA
EDT107M050(1)9PAA
VDC
VDC Surge
Rated Capacitance
Case Size
DF
RC
LC
Part Number
(1) Insert Electrical Parameters code. See Part Number System for available options.
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A4054_EDT • 10/15/2021
5
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Mounting Positions (Safety Vent)
In operation, electrolytic capacitors will always conduct a leakage current, which causes electrolysis. The oxygen produced
by electrolysis will regenerate the dielectric layer but, at the same time, the hydrogen released may cause the internal
pressure of the capacitor to increase. The overpressure vent, or safety vent, ensures that the gas can escape when the
pressure reaches a certain value. All mounting positions must allow the safety vent to work properly.
Installing
• As a general principle, lower-use temperatures result in a longer, useful life of the capacitor. For this reason, it should be
ensured that electrolytic capacitors are placed away from heat-emitting components. Adequate space should be allowed
between components for cooling air to circulate, particularly when high ripple current loads are applied. In any case, the
maximum category temperature must not be exceeded.
• Do not deform the case of the capacitors or use capacitors with a deformed case.
• Verify that the connections of the capacitors are able to insert on the board without excessive mechanical force.
• If the capacitors require mounting through additional means, the recommended mounting accessories shall be used.
• Verify the correct polarization of the capacitor on the board.
• Verify that the space around the pressure relief device is according to the following guideline:
Case Diameter
Space Around Safety Vent
≤ 16 mm
> 2 mm
> 16 to ≤ 40 mm
> 3 mm
> 40 mm
> 5 mm
It is recommended that capacitors always be mounted with the safety device uppermost or in the upper part of the capacitor.
• If the capacitors are stored for a long time, the leakage current must be verifi ed. If the leakage current is superior to the
value listed in this catalog, the capacitors must be reformed. In this case, they can be reformed by application of the rated
voltage through a series resistor approximately 1 kΩ for capacitors with VR ≤ 160 V (5 W resistor) and 10 kΩ for the other
rated voltages.
• In the case of capacitors connected in a series, a suitable voltage sharing must be used.
In the case of balancing resistors, the approximate resistance value can be calculated as: R = 60/C.
KEMET recommends, nevertheless, to ensure that the voltage across each capacitor does not exceed its rated voltage.
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6
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Application & Operation Guidelines
Electrical Ratings:
Capacitance (ESC)
Simplified equivalent circuit diagram of an electrolytic capacitor
The capacitive component of the equivalent series circuit, (equivalent series capacitance - ESC), is determined by applying
an alternate voltage of ≤ 0.5 V at a frequency of 120 or 100 Hz and 20°C (IEC 384-1, 384-4).
Temperature Dependence of the Capacitance
Capacitance of an electrolytic capacitor depends upon temperature: with decreasing temperature the viscosity of the
electrolyte increases, thereby reducing its conductivity.
Capacitance will decrease if temperature decreases. Furthermore, temperature drifts cause armature dilatation and,
therefore, capacitance changes (up to 20% depending on the series considered, from 0 to 80°C). This phenomenon is more
evident for electrolytic capacitors than for other types.
Frequency Dependence of the Capacitance
Effective capacitance value is derived from the impedance curve, as long as impedance is still in the range where the
capacitance component is dominant.
C=
1
2π fZ
C = capacitance (F)
f = frequency (Hz)
Z = impedance (Ω)
Dissipation Factor tan δ (DF)
Dissipation Factor tan δ is the ratio between the active and reactive power for a sinusoidal waveform voltage. It can be
thought of as a measurement of the gap between an actual and ideal capacitor.
reactive
ideal
δ
actual
active
Tan δ is measured with the same set-up used for the series capacitance ESC.
Tan δ = ω x ESC x ESR where:
ESC = Equivalent series capacitance
ESR = Equivalent series resistance
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7
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Application & Operation Guidelines cont.
Equivalent Series Inductance (ESL)
Equivalent series inductance or self inductance results from the terminal confi guration and internal design of the capacitor.
Capacitor Equivalent Internal Circuit
Equivalent
Series
Capacitance
(ESC)
Equivalent
Series
Resistance
(ESR)
Equivalent
Series
Inductance
(ESL)
Co
Re
L
Equivalent Series Resistance (ESR)
Equivalent series resistance is the resistive component of the equivalent series circuit. ESR value depends on frequency and
temperature, and is related to the tan δ by the following equation:
Ce
tan δ
ESR =
2πf ESC
ESR = Equivalent series resistance (Ω)
tan δ = Dissipation factor
ESC = Equivalent series capacitance (F)
f = Frequency (Hz)
Tolerance limits of the rated capacitance must be taken into account when calculating this value.
Impedance (Z)
Impedance of an electrolytic capacitor results from a circuit formed by the following individual equivalent series
components:
Co
Re
L
Ce
Co = Aluminum oxide capacitance (surface and thickness of the dielectric.)
Re = Resistance of electrolyte and paper mixture (other resistances not depending on the frequency are not considered: tabs,
plates, etc.)
Ce = Electrolyte soaked paper capacitance.
L = Inductive reactance of the capacitor winding and terminals.
Impedance of an electrolytic capacitor is not a constant quantity that retains its value under all conditions; it changes
depending on frequency and temperature.
Impedance as a function of frequency (sinusoidal waveform) for a certain temperature can be represented as follows:
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Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Application & Operation Guidelines cont.
Impedance (Z) cont.
Z [ohm ]
1,000
100
1/ω
ω Ce
10
B
Re
1
0.1
ωL
A
1/ω
ω Co
0.1
1
10
C
100
1,000
10,000
F [K Hz]
• Capacitive reactance predominates at low frequencies.
• With increasing frequency, capacitive reactance Xc = 1/ωCo decreases until it reaches the order of magnitude of
electrolyte resistance Re(A)
• At even higher frequencies, resistance of the electrolyte predominates: Z = Re (A - B)
• When the capacitor’s resonance frequency is reached (ω0), capacitive and inductive reactance mutually cancel each other
1/ωCe = ωL, ω0 = 1/SQR(LCe)
• Above this frequency, inductive reactance of the winding and its terminals (XL = Z = ωL) becomes effective and leads to
an increase in impedance
Generally speaking, it can be estimated that Ce ≈ 0.01 Co.
Impedance as a function of frequency (sinusoidal waveform) for different temperature values can be represented as follows
(typical values):
Z (ohm)
10 µF
1,000
100
-40°C
10
20°C
85°C
1
0.1
0.1
1
10
100
1,000
10,000
F (K H z)
Re is the most temperature-dependent component of an electrolytic capacitor equivalent circuit. Electrolyte resistivity will
decrease if temperature rises.
In order to obtain a low impedance value throughout the temperature range, Re must be as little as possible. However, Re
values that are too low indicate a very aggressive electrolyte, resulting in a shorter life of the electrolytic capacitor at high
temperatures. A compromise must be reached.
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A4054_EDT • 10/15/2021
9
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Application & Operation Guidelines cont.
Leakage Current (LC)
Due to the aluminum oxide layer that serves as a dielectric, a small current will continue to fl ow even after a DC voltage has
been applied for long periods. This current is called leakage current.
A high leakage current fl ows after applying voltage to the capacitor then decreases in a few minutes, for example, after
prolonged storage without any applied voltage. In the course of continuous operation, the leakage current will decrease and
reach an almost constant value.
After a voltage-free storage the oxide layer may deteriorate, especially at a high temperature. Since there are no leakage
currents to transport oxygen ions to the anode, the oxide layer is not regenerated. The result is that a higher than normal
leakage current will fl ow when voltage is applied after prolonged storage.
As the oxide layer is regenerated in use, the leakage current will gradually decrease to its normal level.
The relationship between the leakage current and voltage applied at constant temperature can be shown schematically as
follows:
I
VR
VS
VF
V
Where:
VF = Forming voltage
If this level is exceeded, a large quantity of heat and gas will be generated and the capacitor could be damaged.
VR = Rated voltage
This level represents the top of the linear part of the curve.
VS = Surge voltage
This lies between VR and VF. The capacitor can be subjected to VS for short periods only.
Electrolytic capacitors are subjected to a reforming process before acceptance testing. The purpose of this preconditioning
is to ensure that the same initial conditions are maintained when comparing different products.
Ripple Current (RC)
The maximum ripple current value depends on:
• Ambient temperature
• Surface area of the capacitor (heat dissipation area)
tan δ or ESR
• Frequency
The capacitor’s life depends on the thermal stress.
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A4054_EDT • 10/15/2021
10
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Application & Operation Guidelines cont.
Frequency Dependence of the Ripple Current
ESR and, thus, the tan δ depend on the frequency of the applied voltage. This indicates that the allowed ripple current is also
a function of the frequency.
Temperature Dependence of the Ripple Current
The data sheet specifi es maximum ripple current at the upper category temperature for each capacitor.
Expected Life Calculation
Expected life depends on operating temperature according to the following formula: L = Lo x 2(To-T)/10
Where:
L:
Expected life
Lo:
Load life at a maximum permissible operating
temperature
T:
Actual operating temperature
To:
Maximum permissible operating temperature
This formula is applicable between 40°C and To.
Actual Operating Temperature (C°)
Expected Life Calculation Chart
Expected life (h)
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A4054_EDT • 10/15/2021
11
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Packaging Quantities
Size Code
Diameter (mm)
Length (mm)
Reel Quantity
Box Quantity
(4 Reels per box)
9H
9L
9M
9P
9R
9S
6.3
8.0
8.0
10.0
12.5
12.5
7.7
6.2
10.2
10.2
13.5
16.0
1,000
1,000
500
500
200
200
10,000
10,000
4,000
4,000
1,200
1,200
Standard Marking for Surface Mount Types
Negative Polarity
Black Row
Capacitance (µF)
Rated Voltage (VDC)
Series Identification*
* First letter represents
the series
Second letter Blank or “A” = Standard Part
“S” = Automotive Version
Date Code (Y/M/S)
Note: 6.3 V rated voltage shall be marked as 6 V, but 6.3 V shall be assured.
Date Code Explanation
Y = Year
Code
6
7
8
9
0
1
2
3
4
5
Year
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
M = Month
Code
1
2
3
4
5
6
7
8
9
A
B
C
Month
1
2
3
4
5
6
7
8
9
10
11
12
S = AEC-Q200 Certified
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
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A4054_EDT • 10/15/2021
12
Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Construction
Aluminum Can
Lead
Terminal Tabs
Detailed Cross Section
Rubber Seal
Terminal Tab
Rubber Seal
Margin
Aluminum Can
Paper Spacer Impregnated
with Electrolyte
(First Layer)
Anode Aluminum Foil,
Etched, Covered with
Aluminum Oxide
(Second Layer)
Paper Spacer Impregnated with Electrolyte
(Third Layer)
Cathode Aluminum Foil, Etched
(Fourth Layer)
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Lead (+)
Lead (−)
A4054_EDT • 10/15/2021
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Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Soldering Process
The soldering conditions should be within the specified conditions below:
Do not dip the capacitor body into the melted solder. Flux should only be applied to the capacitor terminals.
Temperature of capacitor terminal (°C)
T3
T2
T3
Pre-heat
T1
T0
Time (seconds)
Vapor heat transfer systems are not recommended. The system should be thermal, such as infra-red radiation or hot blast
Observe the soldering conditions as shown below.
Do not exceed these limits and avoid repeated reflowing
Reflow Soldering
T0
Pre-heat
T1
T2
T3
Lead-Free Reflow Soldering cont.
Temperature (°C)
Maximum Time
(Seconds)
20 – 140
140 – 180
180 – 140
> 200
230
60
150
100
60
20
T3
T0
Pre-heat
T1
T2
Maximum Time
(Seconds)
20 – 160
160 – 190
190 – 180
> 220
60
120
90
60
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Maximum Time
(Seconds)
250
260
250
250
10
5
5
5
Size
Temperature
(°C)
Maximum Time
(Seconds)
Φ4 ~ Φ5
(4 – 50 V)
250
260
10
5
Φ6.3 ~ Φ10
(4 – 50 V)
250
5
Φ4 ~ Φ10
(63 – 100 V)
250
5
≥ Φ12.5
250
5
Φ4 ~ Φ5 (4 – 50 V)
Φ6.3 ~ Φ10 (4 – 50 V)
Φ4 ~ Φ10 (63 – 100 V)
Lead-Free Reflow Soldering
Temperature (°C)
Temperature
(°C)
Size
T3
A4054_EDT • 10/15/2021
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Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Lead Taping & Packaging
Case Size (mm)
4 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 5.8
6.3 x 7.7
8 x 6.2
8 x 10.2
10 x 10.2
D
Reel
H
W
±0.2
±0.8
±1.0
380
21
21
21
21
21
21
21
21
14
14
18
18
18
18
26
26
D
H
W
Taping for Automatic Insertion Machines
Feeding hole
Chip pocket
ØD0
P0
P2
E
t1
B
W
F
A
t2
P1
Tape running direction
Chip component
Dimensions (mm)
W
A
B
P0
P1
P2
F
D0
E
t1
t2
Tolerance
Nominal
Nominal
Nominal
±0.1
±0.1
±0.1
Nominal
±0.1
Nominal
Nominal
Nominal
4 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 7.7
8 x 6.2
8 x 10.2
10 x 10.2
12.5 x 13.5
12.5 x 16
16 x 16.5
12
12
16
16
16
24
24
32
32
44
4.7
5.7
7.0
7.0
8.7
8.7
10.7
13.4
13.4
17.5
4.7
5.7
7.0
7.0
8.7
8.7
10.7
13.4
13.4
17.5
4
4
4
4
4
4
4
4
4
4
8
12
12
12
12
16
16
24
24
28
2
2
2
2
2
2
2
2
2
2
5.5
5.5
7.5
7.5
7.5
11.5
11.5
14.2
14.2
20.2
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.75
1.75
1.75
1.75
1.75
1.75
1.75
1.75
1.75
1.75
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5
5.8
5.8
5.8
5.8
6.8
11.0
11.0
14.0
17.5
17.5
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
A4054_EDT • 10/15/2021
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Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
Construction Data
The manufacturing process begins with the anode foil being
electrochemically etched to increase the surface area and then
“formed” to produce the aluminum oxide layer. Both the anode and
cathode foils are then interleaved with absorbent paper and wound
into a cylinder. During the winding process, aluminum tabs are
attached to each foil to provide the electrical contact.
The deck, complete with terminals, is attached to the tabs and then
folded down to rest on top of the winding. The complete winding
is impregnated with electrolyte before being housed in a suitable
container, usually an aluminum can, and sealed. Throughout the
process, all materials inside the housing must be maintained at the
highest purity and be compatible with the electrolyte.
Each capacitor is aged and tested before being sleeved and packed.
The purpose of aging is to repair any damage in the oxide layer
and thus reduce the leakage current to a very low level. Aging is
normally carried out at the rated temperature of the capacitor and
is accomplished by applying voltage to the device while carefully
controlling the supply current. The process may take several hours to
complete.
Damage to the oxide layer can occur due to variety of reasons:
• Slitting of the anode foil after forming
• Attaching the tabs to the anode foil
• Minor mechanical damage caused during winding
A sample from each batch is taken by the quality department after
completion of the production process. This sample size is controlled
by the use of recognized sampling tables defi ned in BS 6001.
The following tests are applied and may be varied at the request
of the customer. In this case the batch, or special procedure, will
determine the course of action.
Electrical:
• Leakage current
• Capacitance
• ESR
• Impedance
• Tan Delta
Mechanical/Visual:
• Overall dimensions
• Torque test of mounting stud
• Print detail
• Box labels
• Packaging, including packed
quantity
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Extended cathode
Anode foil
Foil tabs
Tissues
Cathode foil
Etching
Forming
Winding
Decking
Impregnation
Assembly
Aging
Testing
Sleeving
Packing
A4054_EDT • 10/15/2021
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Surface Mount Aluminum Electrolytic Capacitors – EDT, +125°C
KEMET Electronics Corporation Sales Offices
For a complete list of our global sales offi ces, please visit www.kemet.com/sales.
Disclaimer
All product specifi cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for
checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed. All Information given
herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such
applications, but are not intended to constitute – and KEMET specifi cally disclaims – any warranty concerning suitability for a specifi c customer application or use.
The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes
no obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards
(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury
or property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicted or that other
measures may not be required.
KEMET is a registered trademark of KEMET Electronics Corporation.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
A4054_EDT • 10/15/2021
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