VLF4012AT-1R5M1R6 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 VLF4012A
FEATURES
• Miniature size
Mount area: 3.5× 3.7mm
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
3.7±0.3
1.2max.
(Include terminal area)
Dimensions in mm
RECOMMENDED PC BOARD PATTERN
2.9
4.7
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Part No.
Inductance Inductance
(µH)
tolerance(%)
Test frequency
(kHz)
DC resistance(Ω)
max.
typ.
Rated current(A)^∗
Based on inductance
change max.
Based on temperature
rise typ.
VLF4012AT-1R5M1R6
1.5
±20
100
0.079 0.069
1.8
1.6
VLF4012AT-2R2M1R5
2.2
±20
100
0.087 0.076
1.5
1.5
VLF4012AT-3R3M1R3
3.3
±20
100
0.12
0.1
1.3
1.3
VLF4012AT-4R7M1R1
4.7
±20
100
0.16
0.14
1.1
1.1
VLF4012AT-6R8MR96
6.8
±20
100
0.23
0.2
0.96
0.97
VLF4012AT-100MR79
10
±20
100
0.35
0.3
0.80
0.79
VLF4012AT-150MR63
15
±20
100
0.53
0.46
0.63
0.64
VLF4012AT-220MR51
22
±20
100
0.82
0.71
0.52
0.51
VLF4012AT-330MR39
33
±20
100
1.4
1.2
0.44
0.39
VLF4012AT-470MR30
47
±20
100
2.3
2.0
0.36
0.30
∗ _{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
VLF4012AT-1R5M1R6
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)
VLF4012AT-2R2M1R5
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
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.
001-04 / 20060612 / e531_vlf4012a.fm