Mag Layers SMB-853025 User Manual

Ⅰ

. SCOPE

(1) SHAPES AND DIMENSIONS

(2) ELECTRICAL SPECIFICATIONS

(3) CHARACTERISTICS

：

This specification applies to the Pb Free Ferrite Chip Beads
for SMB-853025

PRODUCT INDENTIFICATION
SMB- 853025

① ②

① Product Code
② Dimensions Code

A: 8.5±0.3 mm
B: 3.1±0.15 mm

SEE TABLE 1

TEST INSTRUMENTS
Z : HP 4291B IMPEDANCE ANALYER (or equivalent)
RDC : CHROMA MODEL 16502 MILLIOHMMETER (or equivalent)

(3)-1 Temperature rise ...................... ＋40℃ Max.

C: 2.54±0.15 mm
D: 1.5 Typ. mm
E: 1.35 Typ. mm

(3)-2 Ambient temperature ................ ＋60℃ Max.

(3)-3 Operate temperature range ...... －40℃～＋85℃

(Including self temp. rise)

(3)-4 Storage temperature range ...... －40℃～＋105℃

MAG.LAYERS

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TABLE 1

MAGLAYERS PT/NO.

IMPEDANCE (Ω)

At 25MHz/0.5V (A)Max.

At 100MHz/0.5V

DCR(mΩ)

Max.

IDC

60±25% 90±25%SMB-853025

0.9 10.0

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(4) RELIABILITY TEST METHOD

MECHANICAL

TEST ITEM SPECIFICATIONS TEST CONDITIONS
Solder The product shall be connected to the test Apply cream solder to the printed circuit board .
ability circuit board by the fillet (the height Refer to clause 8 for Reflow profile.

is 0.2mm).
Resistance to There shall be no damage or problems. Temperature profile of reflow soldering
Soldering
heat (reflow
soldering)

The specimen shall be passed through the reflow
oven with the condition shown in the above pro­file for 1 time.
The specimen shall be stored at standard atmosph­eric conditions for 1 hour, after which the measu-

rement shall be made.
Terminal The terminal electrode and the ferrite must Solder a chip to test substrate , and then
strength not damaged. laterally apply a load 9.8N in the arrow direction.

Strength on The terminal electrode and the ferrite must Solder a chip to test substrate and then apply a load.
PC board not damaged.
bending

High
temperature
resistance

Impedance:Within±20% of the initial value. After the samples shall be soldered onto the test
Insulation resistance and DC resistance on circuit board,the test shall be done.
the specification(refer to clause 2-1) Measurement : After placing for 24 hours min.
shall be met.
The terminal electrode and the ferrite must Applied voltage : Rated voltage
not damaged. Applied current : Rated current

Temperature : +85±2℃

Testing time : 500±12 hours

MAG.LAYERS

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