(1/1)
Conformity to RoHS Directive
SMD Inductors(Coils)
For Power Line(Wound, Magnetic Shielded)
VLCF Series VLCF4028-2
FEATURES
SHAPES AND DIMENSIONS
• Miniature size
4.0 0.1
Mount area: 4× 4mm
Height: 2.8mm max.
• Generic use for portable DC to DC converter line
• High magnetic shield construction should actualize high resolu-
tion for EMC protection.
4R7
• Available for automatic mounting in tape and real package.
• The products do not contain lead and support lead-free solder-
ing.
Dimensions in mm
APPLICATIONS
DC to DC converters for DVC, DSC, PDA, MD, LCD displays,
HDDs, Celluar Phone, etc.
RECOMMENDED PC BOARD PATTERN
2.5
45˚
3.9
Dimensions in mm
ELECTRICAL CHARACTERISTICS
DC resistance(Ω)
Rated current(A)∗
Based on inductance
change max.
2.71
2.31
1.94
1.89
1.57
1.36
1.06
0.88
0.72
0.61
0.48
0.33
0.14
Inductance
(µH)
Inductance
tolerance
Test frequency
(kHz)
Part No.
Based on temperature
max.
typ.
rise typ.
3.11
2.85
2.63
2.46
2.18
1.69
1.45
1.05
0.90
0.74
0.78
0.55
0.25
VLCF4028T-1R2N2R7-2
VLCF4028T-1R6N2R3-2
VLCF4028T-2R2N1R9-2
VLCF4028T-3R3N1R8-2
VLCF4028T-4R7N1R5-2
VLCF4028T-6R8N1R3-2
VLCF4028T-100M1R0-2
VLCF4028T-150MR88-2
VLCF4028T-220MR72-2
VLCF4028T-330MR61-2
VLCF4028T-470MR48-2
VLCF4028T-101MR33-2
VLCF4028T-471MR14-2
∗
1.2
1.6
2.2
3.3
4.7
6.8
10
15
22
33
47
30%
30%
30%
30%
30%
30%
20%
20%
20%
20%
20%
20%
20%
100
100
100
100
100
100
100
100
100
100
100
100
100
0.032
0.038
0.043
0.049
0.062
0.10
0.027
0.032
0.037
0.043
0.054
0.090
0.12
0.14
0.17
0.15
0.24
0.21
0.35
0.30
0.49
0.42
100
470
1.00
0.87
4.58
3.98
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)
• 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 / 20060927 / e531_vlcf4028_2.fm