29
series
Listed here are only samples of the range
of PCB mounting Snap-In Capacitors we can
produce.
Electrical characteristics and case size are
just two parameters that can be optimised
by our design engineers to achieve the
exact product you require. Please contact
our sales office for more details.
ALC10 Series
The ALC10 series of snap-in capacitors cover a wide range of
case sizes and voltage ratings featuring high ripple currents
and long life performance. They are ideally suited for
industrial and commercial applications demanding high
reliability and long life expectancy such as frequency
converters, UPS systems and switch mode power supplies.
ALC40 Series
The ALC40 series of snap-in capacitors feature the same high
ripple currents and long life characteristics as the ALC10
series but can operate at higher temperatures. They are
similarly suited for high reliability and long life applications
such as frequency converters, UPS systems and switch mode
power supplies, but the extended temperature range allows
increased ripple currents at lower temperatures.
A
1
LC
0
A
4
LC
0
ALC12/42
The ALC12 (85°C) and ALC42 (105°C) are high CV,
snap-in, versions of the ALC10 and ALC40 ranges. Both series
are designed for applications where high reliability and
compact sizes are important such as switch mode power
supplies and frequency converters. An overview of both
series can be found on pages 43 to 46.
Capacitance
Range
Capacitance
Tolerance
Voltage
Range
Temperature
range
Case sizes
39µF to
220,000µF
±20%
10V to
500V d.c.
-40°C to
+85°C
22 x 30mm to
50 x 105mm
33µF to
220,000µF
±20%
10V to
450V d.c.
-40°C to
+105°C
22 x 30mm to
50 x 105mm
31
technical data
TECHNICAL DATA
Related documents
IEC 384-4
TEMPERATURE CORRECTION - ALC10
For ambient temperatures other than 85°C the following
correction factors should be employed.
AMBIENT TEMPERATURE
30°C
50°C
70°C
85°C
FACTOR
2.5
2.1
1.6
1.0
Temperature range
ALC10: Storage –55°C to +85°C
Operating –40°C to +85°C
Environmental classification 40/085/56
ALC40: Storage –55°C to +105°C
Operating –40°C to +105°C
Environmental classification 40/105/56
Surge voltage
1000 surges (30 seconds) at 85°C (ALC10) and 105°C (ALC40)
with surge voltage applied. See electrical characteristics for
more details.
TEMPERATURE CORRECTION - ALC40
For ambient temperatures other than 105°C the following
correction factors should be employed.
AMBIENT TEMPERATURE
50°C
60°C
70°C
85°C
105°C
FACTOR
2.5
2.4
2.2
1.8
1.0
Charge/discharge
10
6
cycles at 25°C and rated voltage. One cycle per second
with a time constant of 0.1.
D.C. leakage current
After application of rated d.c. voltage for 5 minutes at 20°C,
the d.c. leakage current shall not exceed
(0.006 C
r
U
r
) µA. Where C
r
is the rated capacitance in µF and
U
r
is the rated d.c. voltage.
N.B. The sum of the d.c. and a.c. voltage components
should not exceed the d.c. voltage rating.
Life expectancy
At rated temperature with rated voltage and ripple current
applied.
CAN DIAMETER
(mm)
22
22
25
25
30
30
35
35
40, 45, 50
40, 45, 50
RANGE
ALC10
ALC40
ALC10
ALC40
ALC10
ALC40
ALC10
ALC40
ALC10
ALC40
LIFE EXPECTANCY
(hours)
8000
4000
10000
6000
13000
7000
15000
8000
18000
9000
Vibration
10Hz to 500Hz at 0.75mm or 10g for 3x2hrs duration.
10Hz to 55Hz at 0.35mm or 5g for 3x0.5hrs duration (45/
50mm diameter cans).
Insulation resistance
> 100MΩ at 100V d.c., across insulating sleeve.
Voltage proof
> 2500V d.c., across insulating sleeve.
Ripple current
The following values are approximate only, to give an
indication of the effects of frequency and temperature on
ripple current. More accurate data can be obtained by
referring to the Application Notes available from BHC.
FREQUENCY CORRECTION - ALC10/40
Capacitors shall withstand the rated r.m.s. ripple current as
given in the tables at upper category temperature in
circulating air. For frequencies other than those shown the
following formula should be used:
Ripple current =
F X A
2
X B
2
100 X (B
2
- A
2
) + (F X A
2
)
A = 100Hz ripple current
B = 10kHz ripple current
F = Required frequency (Hz)
Capacitor marking
The capacitors are marked with items 1 to 6 from the
following list as a minimum, and as much of the remaining
information as is practical.
1.
2.
3.
4.
5.
6.
7.
Rated capacitance in µF
Rated voltage d.c.
Polarity of terminations
Tolerance on rated capacitance
Date code/Batch number
BHC part number
Environmental classification
Test/Measurement
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