(1/2)
001-03 / 20050904 / e531_vlf3012a.fm
Inductors
For Power Line
SMD
FEATURES
• Miniature size
Mount area: 2.6
×
2.8mm
Low profile: 1.2mm max. height
• Generic use for portable DC to DC converter line
• High magnetic shield construction should actualize high resolu-
tion for EMC protection.
• Available for automatic mounting in tape and real package.
• The products do not contain lead and support lead-free solder-
ing.
APPLICATIONS
DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc.
ELECTRICAL CHARACTERISTICS
VLF Series VLF3012A Type
SHAPES AND DIMENSIONS
2.6±0.2
4R7
2.8±0.2
1.2max.
(Include terminal area)
Dimensions in mm
RECOMMENDED PC BOARD PATTERN
1.2
2.1
3.4
Dimensions in mm
Rated current(A)
∗
Part No.
Based on inductance
Based on temperature
max.
typ.
change max.
rise typ.
VLF3012AT-1R5N1R2
1.5
±30
100
0.068
0.059
1.2
1.6
VLF3012AT-2R2M1R0
2.2
±20
100
0.1
0.088
1.0
1.3
VLF3012AT-3R3MR87
3.3
±20
100
0.13
0.11
0.87
1.2
VLF3012AT-4R7MR74
4.7
±20
100
0.19
0.16
0.74
0.98
VLF3012AT-6R8MR59
6.8
±20
100
0.27
0.23
0.59
0.83
VLF3012AT-100MR49
10
±20
100
0.41
0.36
0.49
0.67
VLF3012AT-150MR41
15
±20
100
0.62
0.54
0.41
0.54
VLF3012AT-220MR33
22
±20
100
0.76
0.66
0.33
0.49
VLF3012AT-330MR27
33
±20
100
1.3
1.1
0.27
0.38
VLF3012AT-470MR22
47
±20
100
2.2
1.9
0.22
0.29
∗
Rated current: Value obtained when current flows and the temperature has risen to 40°C or when DC current flows and the nominal value of inductance
has fallen by 30%, whichever is smaller.
• Operating temperature range: –40 to +105°C (Including self-temperature rise)
Inductance
(µH)
Inductance
tolerance(%)
Test frequency
(kHz)
DC resistance(
Ω
)
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF3012AT-1R5N1R2
2.5
Inductance(
µH
)
VLF3012AT-2R2M1R0
3.0
2.5
Inductance(
µH
)
2.0
1.5
1.0
0.5
2.0
1.5
1.0
0.5
0.0
0.0
0.2
0.4
0.6
0.8
DC current (A)
1.0
1.2
1.4
0.0
0.0
0.2
0.4
0.6
0.8
DC current (A)
1.0
1.2
1.4
• All specifications are subject to change without notice.
(2/2)
001-03 / 20050904 / e531_vlf3012a.fm
Inductors
For Power Line
SMD
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF3012AT-3R3MR87
5
Inductance(
µH
)
VLF Series VLF3012A Type
VLF3012AT-4R7MR74
8
Inductance(
µH
)
6
4
2
0
0.0
4
3
2
1
0
0.0
0.2
0.4
0.6
0.8
DC current (A)
1.0
1.2
0.2
0.4
0.6
DC current (A)
0.8
1.0
VLF3012AT-6R8MR59
10
Inductance(
µH
)
8
6
4
2
0
0.0
0.1
0.2
0.3
0.4
0.5
DC current (A)
0.6
0.7
0.8
VLF3012AT-100MR49
15
Inductance(
µH
)
10
5
0
0.0
0.1
0.2
0.3
0.4
DC current (A)
0.5
0.6
VLF3012AT-150MR41
20
15
10
5
0
0.0
VLF3012AT-220MR33
30
Inductance(
µH
)
Inductance(
µH
)
20
10
0.1
0.2
0.3
0.4
DC current (A)
0.5
0.6
0
0.0
0.1
0.2
DC current (A)
0.3
0.4
VLF3012AT-330MR27
50
Inductance(
µH
)
VLF3012AT-470MR22
60
50
Inductance(
µH
)
40
30
20
10
40
30
20
10
0
0.0
0.1
0.2
DC current (A)
0.3
0.4
0
0.00
0.05
0.10
0.15
0.20
DC current (A)
0.25
0.30
TEST CIRCUIT
C=20,000µF
A
2
Sample
1: LCR meter 4285A=100kHz
2: DC constant current
L=0.1H
1
• All specifications are subject to change without notice.
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