MINIATURIZED POWER INDUCTORS
•
•
•
Ideally suited as switching regulator and coupled inductors, common mode chokes, or in other power
filtering applications.
The temperature rise is less than 30 ºC when measured at an ambient temperature of 100 ºC, 0.1 Vrms,
10 kHz, and at rated DC current as shown in the Tables below.
A large number of sizes allows a selection for optimum performance per unit volume.
PART
NUMBER
INDUCTANCE
DC
DCR SIZE
@ 0 DC
CURRENT
(mH†)
(Amps.)
(Ω)
PART
NUMBER
INDUCTANCE
DC
DCR SIZE
@ 0 DC
CURRENT
(mH†)
(Amps.)
(Ω)
4
3
1
SKC-2
SKC-3
SKC-4
SKC-7
SKC-8
SKC-9
SKC-12
SKC-13
SKC-14
SKC-16
SKC-17
SKC-18
SKC-19
SKC-21
SKC-22
SKC-23
SKC-24
SKC-26
SKC-27
SKC-28
SKC-29
SKC-31
SKC-32
SKC-33
SKC-34
20.0
20.0
20.0
15.0
15.0
15.0
10.0
10.0
10.0
7.5
7.5
7.5
7.5
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
2.0
2.0
2.0
2.0
0.100
0.140
0.220
0.120
0.160
0.250
0.140
0.200
0.310
0.100
0.170
0.240
0.380
0.120
0.210
0.300
0.470
0.160
0.270
0.380
0.600
0.190
0.330
0.470
0.740
29.0
20.0
12.4
22.0
15.0
9.3
14.6
10.0
6.2
20.3
11.0
7.5
4.7
13.5
7.3
5.0
3.1
8.1
4.4
3.0
1.9
5.4
2.9
2.0
1.3
2
3
4
2
3
4
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
SKC-36
SKC-37
SKC-38
SKC-39
SKC-41
SKC-42
SKC-43
SKC-44
SKC-46
SKC-47
SKC-48
SKC-49
SKC-51
SKC-52
SKC-53
SKC-54
SKC-56
SKC-57
SKC-58
SKC-59
SKC-61
SKC-62
SKC-63
1.00
1.00
1.00
1.00
0.75
0.75
0.75
0.75
0.50
0.50
0.50
0.50
0.25
0.25
0.25
0.25
0.10
0.10
0.10
0.10
0.04
0.04
0.04
0.270
0.470
0.660
1.000
0.310
0.540
0.760
1.200
0.380
0.660
0.930
1.470
0.530
0.930
1.300
2.080
0.780
1.350
1.950
3.080
1.180
2.030
2.680
2.70
1.50
1.00
0.62
2.00
1.00
0.75
0.47
1.30
0.66
0.50
0.31
0.66
0.33
0.25
0.16
0.30
0.17
0.11
0.07
0.14
0.07
0.06
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
C
A
Dia.
2
B
.010
(0.25)
Min.
E
typ.
F
typ.
G typ.
D
4 places
Mechanical Configuration
† Inductance is measured at 0.1 Vrms and 10kHz. The inductance is at least 80% of
the table value when measured with rated dc current.
Suggested Board Layout
All inductors have split windings for versatility. They
can be connected in series, parallel or individually for
balanced filtering applications.
The ratings in the above tables are for a series-aided
connection of both windings. The inductance of a
parallel connection of these windings will result in 25%
of the inductance at twice the rated current. The DCR
will be 25% of the series connection.
Example: Parallel connection of SKC-2 will be 5 mh
and have a current ratting of .20 Amp DC with a DCR
of 7.25 ohms.
SERIES
PARALLEL
•
1
2
•
3
4
3
4
1
2
•
SIZE
1
2
A
(MAX.)
B
(MAX.)
C
(MAX.)
0.510
(12.95)
0.630
(16.00)
0.680
(17.27)
0.880
(22.35)
D
Ref.
0.065
(1.65)
0.075
(1.91)
0.075
(1.91)
0.075
(1.91)
E
Ref.
0.550
(13.97)
0.650
(16.51)
0.750
(19.05)
0.930
(23.62)
F
Ref.
0.400
(10.16)
0.500
(12.7)
0.600
(15.24)
0.850
(21.59)
G
Ref.
0.150
(3.85)
0.150
(3.85)
0.150
(3.85)
0.150
(3.85)
•
3
4
0.410
0.320
(10.41)
(8.13)
0.530
0.350
(13.21)
(8.89)
0.580
0.630
(14.73) (16.00)
0.850
0.800
(21.59) (20.32)
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