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002-02 / 20080629 / e531_vlf4014s.fm
• All specifications are subject to change without notice.
SMD Inductors(Coils)
For Power Line(Wound, Magnetic Shielded)
VLF Series VLF4014S
FEATURES
• Mount area: 3.6× 3.8mm
Low profile: 1.4mm 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 contain no lead and also support lead-free
soldering.
• It is a product conforming to RoHS directive.
APPLICATIONS
Power souce inductor for mobile devices such as mobile phones,
HDDs, and DSCs
SHAPES AND DIMENSIONS
RECOMMENDED PC BOARD PATTERN
ELECTRICAL CHARACTERISTICS
∗
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)
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF4014ST-1R0N2R3 VLF4014ST-2R2M1R9
Conformity to RoHS Directive
4R7
1.4max.3.8±0.2
3.6±0.2
Dimensions in mm
4.7
2.9
1.3
Dimensions in mm
Part No.
Inductance
(µH)
Inductance
tolerance(%)
Test frequency
(MHz)
DC resistance(Ω) Rated current(A)
∗
max. typ.
Based on inductance
change max.
Based on temperature
rise typ.
VLF4014ST-1R0N2R3 1 ±30 1 0.049 0.041 2.7 2.3
VLF4014ST-2R2M1R9 2.2 ±20 1 0.072 0.06 2 1.9
VLF4014ST-3R3M1R6 3.3 ±20 1 0.107 0.089 1.7 1.6
VLF4014ST-4R7M1R4 4.7 ±20 1 0.14 0.11 1.4 1.4
VLF4014ST-6R8M1R2 6.8 ±20 1 0.19 0.16 1.2 1.2
VLF4014ST-100M1R0 10 ±20 1 0.26 0.22 1 1
0.0
0.5
1.0
1.5
2.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Inductance
(
µH
)
DC current
(
A
)
0.0
1.0
2.0
3.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
Inductance
(
µH
)
DC current
(
A
)
• 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.
