TDK VLF4012AT-100MR50-2

(1/2)
001-03 / 20050904 / e531_vlf4012a_2.fm
Inductors
VLF Series VLF4012A-2 Type
For Power Line
SMD
APPLICATIONS
DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc.
3.5±0.3
SHAPES AND DIMENSIONS
4R7
1.2max.
(Include terminal area)
Dimensions in mm
3.7±0.3
RECOMMENDED PC BOARD PATTERN
1.3
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 resolution for EMC protection.
• Available for automatic mounting in tape and real package.
• The products do not contain lead and support lead-free soldering.
2.9
4.7
Dimensions in mm
ELECTRICAL CHARACTERISTICS
DC resistance(Ω)
Rated current(A)∗
Based on inductance
Based on temperature
max.
typ.
change max.
rise typ.
VLF4012AT-3R3M1R0-2
3.3
±20
100
0.11
0.095
1.0
1.4
VLF4012AT-4R7MR82-2
4.7
±20
100
0.15
0.12
0.82
1.2
VLF4012AT-6R8MR74-2
6.8
±20
100
0.20
0.17
0.74
1.0
VLF4012AT-100MR50-2
10
±20
100
0.23
0.20
0.5
0.97
∗ 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)
Part No.
Inductance
(µH)
Inductance
tolerance(%)
• All specifications are subject to change without notice.
Test frequency
(kHz)
(2/2)
001-03 / 20050904 / e531_vlf4012a_2.fm
Inductors
VLF Series VLF4012A-2 Type
For Power Line
SMD
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF4012AT-3R3M1R0-2
VLF4012AT-4R7MR82-2
4.0
6.0
3.5
5.0
Inductance(µH)
Inductance(µH)
3.0
2.5
2.0
1.5
4.0
3.0
2.0
1.0
1.0
0.5
0.0
0.0
0.2
0.4
0.6
0.8
DC current (A)
1.0
0.0
0.0
1.2
VLF4012AT-6R8MR74-2
0.2
0.4
0.6
0.8
DC current (A)
1.0
1.2
VLF4012AT-100MR50-2
14
12
Inductance(µH)
Inductance(µH)
8.0
6.0
4.0
10
8
6
4
2.0
2
0.0
0.0
0.2
0.4
0.6
DC current (A)
0.8
1.0
TEST CIRCUIT
C=20,000µF
A
L=0.1H
2
1
Sample
1: LCR meter 4285A=100kHz
2: DC constant current
• All specifications are subject to change without notice.
0
0.0
0.1
0.2
0.3
0.4
0.5
DC current (A)
0.6
0.7
0.8