(1/2)
SMD Inductors(Coils)
For Power Line(Wound, Magnetic Shielded)
Conformity to RoHS Directive
VLF Series VLF5012A
4.5±0.3
SHAPES AND DIMENSIONS
4R7
4.7±0.3
1.2max.
Dimensions in mm
RECOMMENDED PC BOARD PATTERN
1.6
FEATURES
• Miniature size
Mount area: 4.5× 4.7mm
Height: 1.2mm max.
• Generic use for portable DC to DC converter line.
• High magnetic shield construction should actualize high
resolution for EMC protection.
• Available for automatic mounting in tape and real package.
• The products do not contain lead and support lead-free
soldering.
3.9
APPLICATIONS
DVCs, DSCs, PDAs, MDs, LCD displays,
cellular phones, cordless telephones, HDDs, FDDs, etc.
5.7
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Part No.
Inductance
(µH)
Inductance
tolerance(%)
Test frequency
(kHz)
VLF5012AT-2R2M1R5
VLF5012AT-3R3M1R3
VLF5012AT-4R7M1R2
VLF5012AT-6R8M1R0
VLF5012AT-100MR80
2.2
3.3
4.7
6.8
10
±20
±20
±20
±20
±20
100
100
100
100
100
DC resistance(Ω)
max.
typ.
0.11
0.14
0.16
0.2
0.35
0.09
0.12
0.14
0.17
0.3
Rated current(A)∗
Based on inductance
change max.
2.3
1.7
1.5
1.2
1
Based on temperature
rise typ.
1.5
1.3
1.2
1
0.8
∗
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)
VLF5012AT-3R3M1R3
2.5
5.0
2.0
4.0
Inductance(µH)
Inductance(µH)
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF5012AT-2R2M1R5
1.5
1.0
2.0
1.0
0.5
0.0
3.0
0.0
0
500
1000
1500
2000
DC current (mA)
2500
3000
0
500
1000
1500
DC current (mA)
2000
2500
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
• All specifications are subject to change without notice.
001-01 / 20070911 / e531_vlf5012a.fm
(2/2)
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF5012AT-4R7M1R2
VLF5012AT-6R8M1R0
8.0
5.0
Inductance(µH)
Inductance(µH)
7.0
4.0
3.0
2.0
1.0
0.0
6.0
5.0
4.0
3.0
2.0
1.0
0
500
1000
1500
DC current (mA)
2000
2500
0.0
0
200
400
600 800 1000 1200 1400 1600
DC current (mA)
VLF5012AT-100MR80
12
Inductance(µH)
10
8
6
4
2
0
0
200
400
600
800
1000
DC current (mA)
1200
1400
TEST CIRCUIT
C=20,000µF
A
2
L=0.1H
Sample
1
1: LCR meter 4285A f=100kHz
2: DC constant current
• All specifications are subject to change without notice.
001-01 / 20070911 / e531_vlf5012a.fm
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