Screw Terminal Aluminum Electrolytic Capacitors
ALS42/43 Series, +105°C
Overview
Applications
Typical applications for KEMET's ALS 42/43 Series of capacitors
include smoothing, energy storage or pulse operation in
telecommunication demanding power supplies, process control,
AC motor control, traction, and welding.
KEMET's ALS42/43 Series of screw terminal capacitors features
the same high ripple currents and long-life characteristics as the
ALS32/33 Series but can operate at higher temperatures. They
are similarly suited for high reliability and long-life applications
such as frequency converters, uninterruptible power supply
(UPS) systems, and switch mode power supplies (SMPS) but the
extended temperature range allows increased ripple currents at
lower temperatures.
Benefits
•
•
•
•
•
Case sizes and terminals for the Asian market
Long life, up to 9,000 hours at +105°C
High ripple current
Excellent surge voltage capability
Optimized designs available upon request
Part Number System
ALS4
Series
Computer Grade
Aluminum Electrolytic
2
Stud Option
2 = Plain Can
3 = Threaded mounting
stud
A
Termination
See Termination
Table
102
Capacitance Code (µF)
First 2 digits equals first 2
significant figures, 3rd digit is
the number of additional zeros.
K3C
Size Code
See Dimension Table
350
Voltage (VDC)
350 = 350
400 = 400
415 = 415
450 = 450
One world. One KEMET
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4037_ALS42_43 • 4/29/2013
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Screw Terminal Aluminum Electrolytic Capacitors – ALS42/43 Series, +105°C
Performance Characteristics
Item
Capacitance Range
Rated Voltage
Operational Temperature Range
Storage Temperature Range
Capacitance Tolerance
1,000 – 15,000 µF
350 – 450 VDC
-40 to +105°C
-55 to +105°C
±20% at 100 Hz/+20°C
D (mm)
36
Operational Lifetime
51
66
77,90
End of Life Requirement
Shelf Life
Leakage Current
Rated Voltage and Ripple Current
at +105°C (hours)
6,000
7,000
8,000
9,000
Rated Voltage at +105°C (hours)
10,000
11,000
13,000
15,000
Performance Characteristics
∆ C/C < ±10%, ESR < 2 x initial ESR value, IL < initial specified limit
2,000 hours at +85°C or 30,000 hours at +40°C 0 VDC
I = 0.003 CV or 6,000 (µA, whichever is smaller)
C = rated capacitance (µF), V = rated voltage (VDC). Voltage applied for 5 minutes at +20°C.
Procedure
0.75 mm displacement amplitude
or 10 g maximum acceleration.
Vibration applied for three 2-hour
sessions at 10 – 55 Hz
(Capacitor clamped by body).
0.35 mm displacement amplitude
or 5 g maximum acceleration.
Vibration applied for three 0.5
hour sessions at 10 – 55 Hz
(Capacitor clamped by body).
Requirements
Case Length < 220 mm
Vibration Test Specifications
Case Length ≥ 220 mm
No leakage of electrolyte or other
visible damage. Deviations in
capacitance and tanδ from initial
measurements must not exceed:
∆ C/C < 5%
Standards
IEC 60384–4 long life grade 40/105/56
Surge Voltage
Condition
≤ 30 s surge, 1,000 cycles at +85°C
≤ 500 ms surge, 100 cycles at +20°C
Voltage (VDC)
350
400
500
400
450
520
415
456.5
530
450
500
550
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4037_ALS42_43 • 4/29/2013
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Screw Terminal Aluminum Electrolytic Capacitors – ALS42/43 Series, +105°C
Test Method & Performance
Endurance Life Test
Conditions
Temperature
Test Duration
Ripple Current
Voltage
+105°C
2,000 hours
Maximum ripple current specified in table
The sum of DC voltage and the peak AC voltage must not exceed the rated voltage of the capacitor
Performance
Performance
Capacitance Change
Equivalent Series Resistance
Leakage Current
The following specifications will be satisfied when the capacitor is tested at +20°C:
Within 10% of the initial value
Does not exceed 200% of the initial value
Does not exceed leakage current limit
Termination Table
Termination
Code
A (D = 35)
A (D ≥ 51)
C (D ≥ 63.5)
Thread
Termination
Style
Oval
Oval
Round
T
± 0.8
Standard Termination Option
7.14
5.5
Other Termination Options
5.5
DT
± 0.5
8
13
13
Thread Depth (TD)
Minimum
10
10
10
Z
Nominal
M5
M5
M6
10
Dimensions in mm
Case Polarity
Due to the presence of electrolyte in the capacitor, the aluminum can and stud mounting will essentially be at the same polarity as the
negative terminal. We recommend that the stud and can be insulated (see accessories for insulating nuts).
Terminations
Aluminum inserts with M5 threads as standard, maximum torque 2NM. Optional M6 threaded inserts have a maximum torque 4NM.
Maximum torque for stud mounting M8:4NM and M12:8NM.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4037_ALS42_43 • 4/29/2013
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Screw Terminal Aluminum Electrolytic Capacitors – ALS42/43 Series, +105°C
Dimensions – Millimeters
Reference
Size (mm)
36 x 55
36 X 68
36 x 80
36 x 93
36 x 106
36 x 119
36 x 131
36 x 144
51 x 55
51 x 68
51 x 80
51 x 93
51 x 106
51 x 115
51 x 119
51 x 131
51 x 144
63.5 x 80
63.5 x 93
63.5 x 106
63.5 x 115
63.5 x 119
63.5 x 131
63.5 x 144
63.5 x 150
63.5 x 194
77 x 93
77 x 106
77 x 115
77 x 119
77 x 131
77 x 144
77 x 150
77 x 170
77 x 194
77 x 220
90 x 150
90 x 170
90 x 194
90 x 220
Size
Code
Dimensions in mm
D
±0.8
L
±1.6
LT
±1
S
±0.5
T
±0.8
V
Nominal
Mounting
Stud (M x H)
±1
Mounting
Clip
Weight
(grams)
80
95
115
130
150
165
185
205
165
200
240
275
315
340
350
385
425
370
430
485
535
545
600
660
690
690
615
700
770
780
865
950
990
1115
1280
1450
1360
1520
1870
2000
D2C
34.9
54.0
61.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
D2L
34.9
66.7
74.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
D3C
34.9
79.4
87.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
D3L
34.9
92.1
100.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
D4C
34.9
104.8
112.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
D4L
34.9
117.5
125.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
D5C
34.9
130.2
138.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
D5L
34.9
142.9
151.5
12.8
7.14
8
M8 x 12
V3/H2/UTE2736
K2C
50.8
54.0
60.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
K2L
50.8
66.7
73.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
K3C
50.8
79.4
86.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
K3L
50.8
92.1
98.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
K4C
50.8
104.8
111.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
KJA
50.8
114.3
119.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
K4L
50.8
117.5
124.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
K5C
50.8
130.2
136.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
K5L
50.8
142.9
149.0
22.2
5.5
13.7
M12 x 16
V4/UTE2737
L3C
63.5
79.4
84.0
28.5
5.5
15.8
M12 x 16
V8
L3L
63.5
92.1
97.0
28.5
5.5
15.8
M12 x 16
V8
L4C
63.5
104.8
110.0
28.5
5.5
15.8
M12 x 16
V8
LJA
63.5
114.3
119.0
28.5
5.5
15.8
M12 x 16
V8
L4L
63.5
117.5
123.0
28.5
5.5
15.8
M12 x 16
V8
L5C
63.5
130.2
135.0
28.5
5.5
15.8
M12 x 16
V8
L5L
63.5
142.9
148.0
28.5
5.5
15.8
M12 x 16
V8
L5R
63.5
149.2
154.0
28.5
5.5
15.8
M12 x 16
V8
L7L
63.5
193.7
198.0
28.5
5.5
15.8
M12 x 16
V8
N3L
76.2
92.1
97.0
31.8
5.5
19
M12 x 16
V11
N4C
76.2
104.8
110.0
31.8
5.5
19
M12 x 16
V11
NJA
76.2
114.3
119.0
31.8
5.5
19
M12 x 16
V11
N4L
76.2
117.5
123.0
31.8
5.5
19
M12 x 16
V11
N5C
76.2
130.2
135.0
31.8
5.5
19
M12 x 16
V11
N5L
76.2
142.9
148.0
31.8
5.5
19
M12 x 16
V11
N5R
76.2
149.2
154.0
31.8
5.5
19
M12 x 16
V11
N6L
76.2
168.3
173.0
31.8
5.5
19
M12 x 16
V11
N7L
76.2
193.7
198.0
31.8
5.5
19
M12 x 16
V11
N8L
76.2
219.1
224.0
31.8
5.5
19
M12 x 16
V11
Q5R
88.9
149.2
154.0
31.8
5.5
25
M12 x 16
V90
Q6L
88.9
168.3
173.0
31.8
5.5
25
M12 x 16
V90
Q7L
88.9
193.7
198.0
31.8
5.5
25
M12 x 16
V90
Q8L
88.9
219.1
224.0
31.8
5.5
25
M12 x 16
V90
Note: Add 0.4 mm to D (1.1 mm when D = 88.9) and 1.1 mm to L for sleeving. LT listed is for A-type termination code.
Information for other termination codes is available upon request.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4037_ALS42_43 • 4/29/2013
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Screw Terminal Aluminum Electrolytic Capacitors – ALS42/43 Series, +105°C
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 products are particularly stable and allow a shelf life in excess of three years at 40°C. See
sectional specification under each product series for specific data.
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.
Reliability
The reliability of a component can be defined as the probability that it will perform satisfactorily under a given set of conditions for a
given length of time.
In practice, it is impossible to predict with absolute certainty how any individual component will perform; thus, we must utilize probability
theory. It is also necessary to clearly define the level of stress involved (e.g. operating voltage, ripple current, temperature and time).
Finally, the meaning of satisfactory performance must be defined by specifying a set of conditions which determine the end of life of the
component.
Reliability as a function of time, R(t), is normally expressed as: R(t)=e-
λt
where R(t) is the probability that the component will perform satisfactorily for time t, and λ is the failure rate.
Failure Rate
The failure rate is the number of components failing per unit time. The failure rate of most electronic components follows the
characteristic pattern:
• Early failures are removed during the manufacturing process.
• The operational life is characterized by a constant failure rate.
• The wear out period is characterized by a rapidly increasing failure rate.
The failures in time (FIT) are given with a 60% confidence level for the various type codes. By convention, FIT is expressed as 1 x 10
-9
failures per hour. Failure rate is also expressed as a percentage of failures per 1,000 hours.
e.g., 100 FIT = 1 x 10
-7
failures per hour = 0.01%/1,000 hours
End of Life Definition
Catastrophic Failure: short circuit, open circuit or safety vent operation
Parametric Failure:
• Change in capacitance > ±10%
• Leakage current > specified limit
• ESR > 2 x initial ESR value
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4037_ALS42_43 • 4/29/2013
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