Spec No. JEFL243B-9101F-01 P7/10
MURATA MFG.CO.,LTD
Reference Only
12.△!Caution
12.1 Mounting Direction
Mount products in right direction.
Wrong direction which is 90°rotated from right direction causes not only open or short circuit but also flames or
other serious trouble.
12.2 Fail Safe
Be sure to provide an appropriate fail-safe function on your product to prevent from a second damage that may
be caused by the abnormal function or the failure of our products.
12.3 Limitation of Applications
Please contact us before using our products for the applications listed below which require especially high
reliability for the prevention of defects which might directly cause damage to the third party's life, body or property.
(1) Aircraft equipment (6) Transportation equipment (trains, ships, etc.)
(2) Aerospace equipment (7) Traffic signal equipment
(3)Undersea equipment (8) Disaster prevention / crime prevention equipment
(4)Power plant control equipment (9) Data-processing equipment
(5) Medical equipment (10) Applications of similar complexity and /or reliability requirements
to the applications listed in the above
12.4 Attention regarding product's heat generation
Please pay special attention to the product’s heat generation such as beyond Operating Temperature range,
mounting product in close proximity to other products that radiate heat and beyond the rated current.
13. Notice
Products can only be soldered with reflow.
This product is designed for solder mounting.
Please consult us in advance for applying other mounting method such as conductive adhesive.
13.1 Flux and Solder
Flux Use rosin-based flux.Do not use highly acidic flux
(with chlorine content exceeding0.2(wt)%)
Do not use water soluble flux.
Solder Use Sn-3.0Ag-0.5Cu solder
Other flux (except above) please contacts us for details, then use.
13.2 Notes for Assembling
<Exclusive Use of Reflow Soldering>
When installing by the flow soldering, the degradation of the insulation resistance sometimes occurs.
Products can only be soldered with reflow.
The use in flow soldering is reserved.
< Thermal Shock >
Pre-heating should be in such a way that the temperature difference between solder and products
surface is limited to 150 °C max. Also cooling into solvent after soldering should be in such a way that
the temperature difference is limited to 150 °C max.
Insufficient pre-heating may cause cracks on the ferrite, resulting in the deterioration of product quality.
13.3 Attention Regarding P.C.B. Bending
The following shall be considered when designing P.C.B.'s and laying out products.
(1) P .C.B. shall be designed so that products are not subject to the mechanical stress for board warpage.
〔 Products Direction〕
Products shall be located in the sideways
direction (Length:a<b) to the mechanical stress.
(2) Products location on P.C.B. near seam for separation.
Products (A,B,C,D) shall be located carefully
so that products are not subject to the
mechanical stress due to warping the board.
Because they may be subjected the mechanical
stress in order of A > C > B ≅ D.
Z Z
right direction
wrong direction
〈
Poor example
〉
〈
Good example
〉
b
a
Seam
Slit
A
D
B
C
b
a
Length:a
<
b