VLF4014ST-4R7M1R4 TDK Corporation, VLF4014ST-4R7M1R4 Datasheet
VLF4014ST-4R7M1R4
Manufacturer Part Number
VLF4014ST-4R7M1R4
Description
INDUCTOR POWER 4.7UH 1.4A SMD
Manufacturer
TDK Corporation
Series
VLFr
Datasheets
1.VLF4014AT-100MR90.pdf
(1 pages)
2.VLF4014ST-6R8M1R2.pdf
(2 pages)
3.VLF4014ST-100M1R0.pdf
(13 pages)
Specifications of VLF4014ST-4R7M1R4
Inductance
4.7µH
Tolerance
±20%
Current
1.4A
Current - Temperature Rise
1.4A
Shielding
Shielded
Dc Resistance (dcr)
140 mOhm Max
Package / Case
0.150" L x 0.142" W x 0.055" H (3.80mm x 3.60mm x 1.40mm)
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 105°C
Frequency - Test
1MHz
Applications
Power Line
Test Frequency
1 MHz
Maximum Dc Current
1.4 Amps
Maximum Dc Resistance
0.14 Ohms
Dimensions
3.8 mm W x 3.6 mm L x 1.4 mm H
Operating Temperature Range
- 40 C to + 105 C
Termination Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Q @ Freq
-
Self Resonant Freq
-
Current - Saturation
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
445-4222-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
VLF4014ST-4R7M1R4
Manufacturer:
TDK Corporation
Quantity:
1 858
SMD Inductors(Coils)
For Power Line(Wound, Magnetic Shielded)
VLF Series VLF4014A
FEATURES
• Mount area: 3.5× 3.7mm
• 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 contain no lead and also support lead-free
• It is a product conforming to RoHS directive.
APPLICATIONS
Power souce inductor for mobile devices such as mobile phones,
HDDs, and DSCs
ELECTRICAL CHARACTERISTICS
Part No.
VLF4014AT-4R7M1R1
VLF4014AT-100MR90
∗
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS
VLF4014AT-4R7M1R1
TEST CIRCUIT
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
• All specifications are subject to change without notice.
1: LCR meter 4285A=100kHz
2: DC constant current
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
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
Low profile: 1.4mm max. height
tion for EMC protection.
soldering.
6
5
4
3
2
1
0
A
0
Sample
L=0.1H
200
C=20,000µF
400
600
DC current ( mA )
1
Inductance
(µH)
4.7
10
800
1000 1200 1400 1600
Inductance
tolerance(%)
±20
±20
Test frequency
(kHz)
100
100
SHAPES AND DIMENSIONS
RECOMMENDED PC BOARD PATTERN
VLF4014AT-100MR90
3.7±0.3
14
12
10
DC resistance(Ω)
max.
0.16
0.26
8
6
4
2
0
0
2.9
4.7
200
typ.
0.14
0.23
Dimensions in mm
Dimensions in mm
400
DC current ( mA )
Rated current(A)
Based on inductance
change max.
1.2
0.9
1.4max.
600
002-03 / 20080629 / e531_vlf4014a.fm
800
Conformity to RoHS Directive
∗
1000
Based on temperature
rise typ.
1.1
0.9
1200
(1/1)
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