VLF3012AT-100MR49 Datasheet, PDF (1/2 Pages) TDK Electronics – Generic use for portable DC to DC converter line

Inductors
For Power Line
SMD
(1/2)
001-03 / 20050904 / e531_vlf3012a.fm
VLF Series VLF3012A Type
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 do not contain lead and support lead-free solder-
ing.
APPLICATIONS
DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc.
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
VLF3012AT-2R2M1R0
VLF3012AT-3R3MR87
VLF3012AT-4R7MR74
VLF3012AT-6R8MR59
VLF3012AT-100MR49
VLF3012AT-150MR41
VLF3012AT-220MR33
VLF3012AT-330MR27
VLF3012AT-470MR22
Inductance
(µH)
1.5
2.2
3.3
4.7
6.8
10
15
22
33
47
Inductance
tolerance(%)
±30
±20
±20
±20
±20
±20
±20
±20
±20
±20
Test frequency
(kHz)
100
100
100
100
100
100
100
100
100
100
DC resistance(Ω)
max. typ.
0.068
0.1
0.13
0.19
0.27
0.41
0.62
0.76
1.3
2.2
0.059
0.088
0.11
0.16
0.23
0.36
0.54
0.66
1.1
1.9
Rated current(A)^∗
Based on inductance
change max.
1.2
1.0
0.87
0.74
0.59
0.49
0.41
0.33
0.27
0.22
Based on temperature
rise typ.
1.6
1.3
1.2
0.98
0.83
0.67
0.54
0.49
0.38
0.29
∗ _{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 SUPERPOSITIONçCHARACTERISTICS
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)
• All specifications are subject to change without notice.