TDK VLCF4018-2 Technical data

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SMD Inductors(Coils)
For Power Line(Wound, Magnetic Shielded)

VLCF Series VLCF4018-2

FEATURES

• Miniature size
Mount area: 4× 4mm
Height: 1.8mm max.

• 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.

APPLICATIONS

DC to DC converters for DVC, DSC, PDA, MD, LCD displays,
HDDs, etc.

SHAPES AND DIMENSIONS

4.0±0.1

4R7

RECOMMENDED PC BOARD PATTERN

2.5

45˚

4.0±0.1

4.3max.

1.8max.

1.61.6 1.3

)

Include solder

(

Dimensions in mm

Conformity to RoHS Directive

4.5

3.9
Dimensions in mm

ELECTRICAL CHARACTERISTICS

Par t No.

VLCF4018T-1R6N1R7-2 1.6 ±30 100 0.051 0.044 1.72 2.42
VLCF4018T-2R2N1R4-2 2.2 ±30 100 0.06 0.052 1.44 2.23
VLCF4018T-3R3N1R2-2 3.3 ±30 100 0.079 0.069 1.26 1.93
VLCF4018T-4R7N1R0-2 4.7 ±30 100 0.101 0.088 1.07 1.72
VLCF4018T-6R8NR94-2 6.8 ±30 100 0.124 0.108 0.94 1.55
VLCF4018T-100MR74-2 10 ±20 100 0.188 0.163 0.74 1.26
VLCF4018T-150MR59-2 15 ±20 100 0.268 0.233 0.59 1.1
VLCF4018T-220MR49-2 22 ±20 100 0.369 0.321 0.49 0.9
VLCF4018T-330MR42-2 33 ±20 100 0.54 0.469 0.42 0.74
VLCF4018T-470MR34-2 47 ±20 100 0.76 0.661 0.34 0.62

∗

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)

Inductance
(µH)

Inductance
tolerance(%)

Test frequency
(kHz)

DC resistance(Ω) Rated current(A)

max. typ.

Based on inductance
change max.

∗

Based on temperature
rise typ.

• 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_vlcf4018_2.fm