SMD Inductors(Coils)
For Power Line(Wound, Magnetic Shielded)
VLF Series VLF4012A
FEATURES
• Miniature size
• Generic use for portable DC to DC converter line
• High magnetic shield construction should actualize high resolu-
• Available for automatic mounting in tape and real package.
• The products do not contain lead and support lead-free solder-
APPLICATIONS
DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc.
ELECTRICAL CHARACTERISTICS
Part No.
VLF4012AT-1R5M1R6
VLF4012AT-2R2M1R5
VLF4012AT-3R3M1R3
VLF4012AT-4R7M1R1
VLF4012AT-6R8MR96
VLF4012AT-100MR79
VLF4012AT-150MR63
VLF4012AT-220MR51
VLF4012AT-330MR39
VLF4012AT-470MR30
• Operating temperature range: –40 to +105°C (Including self-temperature rise)
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF4012AT-1R5M1R6
• All specifications are subject to change without notice.
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.
Mount area: 3.5 3.7mm
Low profile: 1.2mm max. height
tion for EMC protection.
ing.
2.0
1.5
1.0
0.5
0.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
DC current ( A )
Inductance
(µH)
1.5
2.2
3.3
4.7
6.8
10
15
22
33
47
±20
±20
Inductance
tolerance(%)
±20
±20
±20
±20
±20
±20
±20
±20
Test frequency
(kHz)
100
100
100
100
100
100
100
100
100
100
SHAPES AND DIMENSIONS
RECOMMENDED PC BOARD PATTERN
VLF4012AT-2R2M1R5
3.7 0.3
DC resistance( )
max.
0.079
0.087
0.12
0.16
0.23
0.35
0.53
0.82
1.4
2.3
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
2.9
4.7
typ.
0.069
0.076
0.1
0.14
0.2
0.3
0.46
0.71
1.2
2.0
Dimensions in mm
Rated current(A)
Based on inductance
change max.
1.8
1.5
1.3
1.1
0.96
0.80
0.63
0.52
0.44
0.36
DC current ( A )
1.2max.
( Include terminal area )
Dimensions in mm
001-03 / 20060415 / e531_vlf4012a.fm
Conformity to RoHS Directive
Based on temperature
rise typ.
1.6
1.5
1.3
1.1
0.97
0.79
0.64
0.51
0.39
0.30
(1/2)