TDK VLM Series VLM10555-2 Manual de usuario

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001-03 / 20080822 / e531_vlm10555_2.fm

• All specifications are subject to change without notice.

SMD Inductors(Coils)

For Power Line(Wound, Magnetic Shielded)

VLM Series VLM10555-2

FEATURES

• Low loss and large current capability design.

• High magnetic shield construction should actualize high resolu-

tion for EMC protection.

• Available for automatic mounting in tape and real package.

APPLICATIONS

Note book type and mobile computers, amusement equipment,

DVD players, VRMs, plasma displays, etc.

SHAPES AND DIMENSIONS

RECOMMENDED PC BOARD PATTERN

ELECTRICAL CHARACTERISTICS

∗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.

TYPICAL ELECTRICAL CHARACTERISTICS

INDUCTANCE CHANGE vs. DC SUPERPOSITION

CHARACTERISTICS

TEMPERATURE RISE CHARACTERISTICS

Conformity to RoHS Directive

1R8M

10.6±0.2

10.5max.5.4±0.2

Dimensions in mm

3.92.7

11.5

1.8

3.7

8.7

Dimensions in mm

Part No. Inductance

(µH)

Inductance

tolerance

(%)

Test frequency

(kHz)

DC resistance

(mΩ)

Rated current(A)∗

Based on inductance change

max.(typ.)

Based on

temperature rise

typ.

[±15%] typ. [at 25°C] [at 100°C]

VLM10555T-1R8M8R8-2 1.8 ±20 100 5.6 5.6 18(20) 14(16) 8.8

VLM10555T-2R5M8R0-2 2.5 ±20 100 6.7 6.7 15(17) 12(14) 8

VLM10555T-3R3M7R2-2 3.3 ±20 100 8.3 8.3 12(14) 10(12) 7.2

VLM10555T-4R3M7R2-2 4.3 ±20 100 8.3 8.3 9(11) 7(9) 7.2

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

0 5 10 15 20 25

DC current(A)

1.8µH[at 25˚C]

2.5µH[at 25˚C]

3.3µH[at 25˚C]

4.3µH[at 25˚C]

1.8µH[at 100˚C]

2.5µH[at 100˚C]

3.3µH[at 100˚C]

4.3µH[at 100˚C]

Inductance(µH)

024681012

Self-temperature rise(˚C)

DC current(A)

1.8µH

2.5µH

3.3µH/4.3µH

• 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.

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