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