Mag Layers MSI-121006 User Manual

Ⅰ. SCOPE：

This specification applies to the Pb Free high current type SMD inductors for
MSI-121006-SERIES

PRODUCT INDENTIFICATION

MSI-121006- R18 M

① ② ③ ④

① Product Code

② Dimensions Code

③ Inductance Code

④ Tolerance Code

(1) SHAPES AND DIMENSIONS

A: 12.1 Max. mm
B: 10.0 Max. mm
C: 6.0 Max. mm
D: 2.54±0.25 mm
E: 3.94±0.25 mm

(2) ELECTRICAL SPECIFICATIONS

SEE TABLE 1

TEST INSTRUMENTS
L : HP 4284A PRECISION LCR METER (or equivalent)
RDC : CHROMA MODEL 16502 MILLIOHMMETER (or equivalent)

(3) CHARACTERISTICS

(3)-1 Operate temperature range ...... －40℃～＋125℃

(Including self temp. rise)

(3)-2 Storage temperature range ...... －40℃～＋125℃

MSI-121006-SERIES Page 1/8

IDC1 :WK3255B+3265B (or equivalent)

MAG.LAYERS

TABLE

Inductance Percent Test Resistance Rated DC Current

L(μH) Tolerance Frequency RDC(mΩ) IDC1(A) IDC2(A)

0.18 L,M 100kHz/0.1V 0.48 ±6.5% 55 36 R18

0.23 L,M 100kHz/0.1V 0.48 ±6.5% 47 36 R23

0.36 L,M 100kHz/0.1V 0.48 ±6.5% 30 36 R36

※ □ specify the inductance tolerance,L(±15%),M(±20%)

※ IDC1： Based on inductance change (△L/Lo：drop 20% Typ.)@ ambient temp. 25℃

IDC2： Based on temperature rise (△T： 40℃ TYP.)

Rated DC Current： The less value which is IDC1 or IDC2 .

The nominal DCR is measured from point 〝a〞to point〝b〞.

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RDC TEST POINT

MSI-121006-SERIES

Marking

MAGLAYERS

PT/NO.

MSI-121006-R18□

MSI-121006-R23□

MSI-121006-R36□

MAG.LAYERS

a

b

(4) RELIABILITY TEST METHOD

MECHANICAL

TEST ITEM SPECIFICATION TEST DETAILS

Substrate bending

△L/Lo≦±5%

The sample shall be soldered onto the printed circuit board

in figure 1 and a load applied unitil the figure in the arrow
There shall be direction is made approximately 3mm.(keep time 30 seconds)
no mechanical PCB dimension shall the page 7/9
damage or elec- F(Pressurization)
trical damege.

Vibration

△L/Lo≦±5%

The sample shall be soldered onto the printed circuit board

and when a vibration having an amplitude of 1.52mm
There shall be and a frequency of from 10 to 55Hz/1 minute repeated should
no mechanical be applied to the 3 directions (X,Y,Z) for 2 hours each.
damage. (A total of 6 hours)

Solderability

New solder Flux (rosin, isopropyl alcohol{JIS-K-1522}) shall be coated
More than 90% over the whole of the sample before hard, the sample shall

then be preheated for about 2 minutes in a temperature of

130～150℃ and after it has been immersed to a depth 0.5mm

below for 3±0.2 seconds fully in molten solder M705 with

a temperature of 245±5℃.

More than 90% of the electrode sections shall be couered

with new solder smoothly when the sample is taken out of

the solder bath.

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MSI-121006-SERIES

PRESSURE ROD

figure-1

MAG.LAYERS