MINIATURE ALUMINUM ELECTROLYTIC CAPACITORS
MK
High Ripple Current
Series
Low Impedance
Solvent Proof
·Ripple
current compared with LK series
·Enabled
high ripple current by a reduction of impedance at high frequency
·High
reliability withstanding 5000 hours load life at 105°
C
(2000 ~ 3000 hours for smaller case sizes as specified below)
·Complied
to the RoHS directive
Item
Operating temperature range
Leakage current max.
Capacitance tolerance
Dissipation factor max.
(at 120Hz, 20°
C)
Low temperature characteristics
(Impedance ratio at 120Hz)
Characteristics
-40 ~ +105°
C
I = 0.01CV or 3μ whichever is greater (after 2 minutes)
A
I = 0.03CV or 4μ whichever is greater (after 1 minute)
A
±20%
at 120Hz, 20°
C
Capacitance > 1000μ : tanδ
F
increases by 0.02 for each 1000μ from below value.
F
WV
tanδ
6.3
0.22
10
0.19
16
0.16
25
0.14
35
0.12
50
0.10
63
0.08
100
0.08
Z-40° / Z+20°
C
C
3
Z-25° / Z+20°
C
C
2
After an application of DC bias voltage plus the rated AC ripple current for 5000 hours at 105°
C.
The measurement shall meet the following limits. The DC voltage plus the peak AC voltage
combined must not exceed the rated voltage.
Load life
Leakage current
Capacitance change
tanδ
ØD
Life time
Shelf life (at 105°
C)
Less than specified value
Within
±25%
of the initial value
Less than 200% of the specified value
ØD
= 5, 6.3
2000 hours
ØD
= 8
3000 hours
ØD ≧
10
5000 hours
After 1000 hours no load test, leakage current, capacitance and tanδ same as load life value.
are
The measurement shall be performed at 20° by the KS C 6035 clause 5.4.
C
Unit : mm
●
DRAWING
Insulating sleeve
ØD+0.5
max.
Ød±0.05
Tinned copper-ply wire
＋
－
ØD
P±0.5
5
2.0
0.5
6.3
2.5
0.5
1.5
8
3.5
0.6
10
5.0
0.6
12.5
5.0
0.6
2.0
16
7.5
0.8
18
7.5
0.8
P
Ød
β
L+β
max.
15 min.
4 min.
Safety vent (Ø6.3 up)
●
FREQUENCY COEFFICIENT OF PERMISSIBLE RIPPLE CURRENT
μ
F
Frequency
~ 33
39 ~ 270
330 ~ 680
820 ~ 1800
2200 ~
120Hz
0.40
0.50
0.55
0.60
0.70
1kHz
0.65
0.70
0.75
0.80
0.85
10kHz
0.82
0.84
0.86
0.88
0.90
50kHz
0.94
0.96
0.96
0.97
0.97
100kHz≦
1.00
1.00
1.00
1.00
1.00
114
Industrial Control Electronics
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