VLF3012A Datasheet, PDF (1/2 Pages) TDK Electronics – SMD Inductors(Coils) For Power Line(Wound, Magnetic Shielded)

(1/2)
SMD Inductors(Coils)
For Power Line(Wound, Magnetic Shielded)
Conformity to RoHS Directive
VLF Series VLF3012A
FEATURES
• Miniature size
Mount area: 2.6× 2.8mm
Low profile: 1.2mm 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
2.8±0.2
1.2max.
(Include terminal area)
Dimensions in mm
RECOMMENDED PC BOARD PATTERN
2.1
3.4
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Part No.
VLF3012AT-1R5N1R2
Inductance
[at 1/2 Idc1]^∗2
(µH)
Inductance
tolerance(%)
1.5
±30
Test frequency
(kHz)
100
DC resistance(Ω)
max.
typ.
0.068 0.059
Rated current^∗1(A)
Based on inductance
change Idc1 max.
1.2
Based on temperature
rise Idc2 typ.
1.6
VLF3012AT-2R2M1R0
2.2
±20
100
0.1
0.088
1.0
1.3
VLF3012AT-3R3MR87
3.3
±20
100
0.13
0.11
0.87
1.2
VLF3012AT-4R7MR74
4.7
±20
100
0.19
0.16
0.74
0.98
VLF3012AT-6R8MR59
6.8
±20
100
0.27
0.23
0.59
0.83
VLF3012AT-100MR49
10
±20
100
0.41
0.36
0.49
0.67
VLF3012AT-150MR41
15
±20
100
0.62
0.54
0.41
0.54
VLF3012AT-220MR33
22
±20
100
0.76
0.66
0.33
0.49
VLF3012AT-330MR27
33
±20
100
1.3
1.1
0.27
0.38
VLF3012AT-470MR22
47
±20
100
2.2
1.9
0.22
0.29
∗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.
∗2 _{Inductance is at 1/2 Idc1 power distribution. The L vaule at 0A is higher than the guaranteed performance.}
• Operating temperature range: –40 to +105°C (Including self-temperature rise)
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF3012AT-1R5N1R2
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
DC current(A)
VLF3012AT-2R2M1R0
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
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.
002-03 / 20080629 / e531_vlf3012a.fm