Snap-In Aluminum Electrolytic Capacitors
ALC42 Series, 105ºC
Overview
Applications
KEMET's ALC42 Series of capacitors is designed for applications
where high reliability and compact sizes are important, such as
switch mode power supplies (SMPS) and frequency converters.
KEMET's ALC42 Series of capacitors is a high CV snap-in
version of the ALC40 Series range. Both feature the same high
ripple currents and long-life characteristics as the ALC10 Series
but can operate at higher temperatures.
Benefits
•
•
•
•
Compact size
2,000 hours at +105°C (V
R
, I
R
applied)
Excellent surge voltage capability
Optimized designs available upon request
Part Number System
ALC42
Series
Snap-In type Aluminum
Electrolytic
A
Termination
See Termination Table
561
Capacitance Code (µF)
First 2 digits equals first 2
significant figures, 3rd digit
is the number of additional
zeros.
CB
Size Code
See Dimension Table
200 = 200
250 = 250
350 = 350
400 = 400
450 = 450
200
Voltage (VDC)
One world. One KEMET
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4027_ALC42 • 4/15/2013
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Snap-In Aluminum Electrolytic Capacitors – ALC42 Series, +105ºC
Performance Characteristics
Item
Capacitance Range
Rated Voltage
Operational Temperature Range
Storage Temperature Range
Capacitance Tolerance
Operational Lifetime
End of Life Requirement
Shelf Life
Leakage Current
120 – 6,800 µF
200 – 450 VDC
-40 to +105°C
-55 to +105°C
±20% at 100 Hz / +20°C
Rated Voltage and Ripple Current
at +105°C (hours)
2,000
∆ 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 – 500 Hz
(Capacitor clamped by body).
0.35 mm displacement amplitude
or 5g maximum acceleration.
Vibration applied for three
0.5-hour sessions at 10 – 55 Hz
(Capacitor clamped by body).
Requirements
Rated Voltage at +105°C (hours)
11,000
Performance Characteristics
D ≤ 40 mm
Vibration Test Specifications
D > 40 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
200
≤ 30s Surge followed by a no load
period of 330s, 1,000 cycles at +85°C
≤ 500 ms surge, 100 cycles at 20°C,
occurring randomly throughout the life
of the capacitor
230
350
250
288
400
Voltage (VDC)
350
385
500
400
440
520
450
495
550
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4027_ALC42 • 4/15/2013
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Snap-In Aluminum Electrolytic Capacitors – ALC42 Series, +105ºC
Test Method & Performance
Endurance Life Test
Conditions
Temperature
Test Duration
Ripple Current
Voltage
+105°C
2,000 hours
Rated ripple current in specified 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:
≤ 160 V
≥ 160 V
Does not exceed 200% of the initial value
Does not exceed leakage current limit
Within 15% of the initial value
Within 10% of the initial value
Dimensions – Millimeters
Size Code
CB
CC
CD
CE
CF
DB
DC
DD
DE
DF
DG
DH
DL
EB
EC
ED
EE
EF
EG
EH
-0/+1
30
30
30
30
30
35
35
35
35
35
35
35
35
40
40
40
40
40
40
40
Dimensions in mm
D
L
Size Code
EL
EP
FB
FC
FD
FE
FF
FG
FH
FL
FP
KB
KC
KD
KE
KF
KG
KH
KL
KP
±2
30
35
40
45
50
30
35
40
45
50
55
60
80
30
35
40
45
50
55
60
-0/+1
40
40
45
45
45
45
45
45
45
45
45
50
50
50
50
50
50
50
50
50
Dimensions in mm
D
L
±2
80
105
30
35
40
45
50
55
60
80
105
30
35
40
45
50
55
60
80
105
Note: Dimensions include sleeving
Note: Dimensions include sleeving
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
A4027_ALC42 • 4/15/2013
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Snap-In Aluminum Electrolytic Capacitors – ALC42 Series, +105ºC
Termination Tables
Termination
Code
Diameter (mm)
30
35
40
45
50
A
•
•
•
D
•
•
•
F
•
•
•
C
E
G
H
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Mounting: These capacitors are designed to be mounted by their terminations alone and may be used in any position.
Dummy pins must be isolated on 4 and 5 pin styles.
Termination
Code
A
G (D ≥ 45)
D
F
C
E
H
Termination
Style
Standard Termination Option
2 Pin
5 Pin
Other Termination Options
2 Pin
3 Pin
4 Pin
4 Pin
5 Pin
LL
±1
6.3
6.3
4
4
6.3
4
4
Dimensions in mm
Style A/D
L
D
LL
Style F
LL
-
Style C/E
LL
Style G/H
-
LL
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
+
+
+
A4027_ALC42 • 4/15/2013
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Snap-In Aluminum Electrolytic Capacitors – ALC42 Series, +105ºC
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
A4027_ALC42 • 4/15/2013
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Analogue and Mixed Signal
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