Sgec. No. JEFL2430»9120»01
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Products can on
This product is d
Please oonsult u
14.1. Flux and Sold
Flux
Use rosinsbased flux.(with convening chlorine content 0.06 to 0.1(wl)%. ).
Solder
14.2. Assembling
< exclusive="" use="" of="" flow="" soldering="" soreflow="" sold="">< thermal="" shock="">
Presheating sh
ceramic surfac
should be ln 5
Not enough pr
14.3. Cleaning Con
Do not clean a
14.4. Flesin coating
The impedanc
open circult is
condition etc,
some operatin
attention when
please make s
14.5. Anention regs
The following
(1) P.C.B. shall be
[Products direction
(2) Components loc
lt l5 effectlve to imp
lt is best to implant
to reduce stress
Contents of Me
1 Turn the m
2 Add sllts lrl
3 Keep the m
l D
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MURATAMFG (20., LTD.
Spec. No. JEFL243C-9120-01 P 7/10
MURATA MFG CO., LTD.
Reference Only
14.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.
14.1. Flux and Solder
Flux Use rosin-based flux,(with converting chlorine content 0.06 to 0.1(wt)%. ),
but not highly acidic flux
(with Halogen content exceeding 0.2(wt)% conversion to chlorine).
Do not use water-soluble flux.
Solder Use Sn-3.0Ag-0.5Cu solder
14.2. Assembling
< Exclusive use of Reflow soldering >
Flow soldering may cause deterioration in insulation resistance.
So,reflow soldering shall be applied for this product.
< Thermal Shock >
Pre-heating should be in such a way that the temperature difference between solder and
ceramic surface is limited to 100°C max. Also cooling into solvent after soldering
should be in such a way that the temperature difference is limited to 100°C max.
Not enough preheating may cause deterioration in insulation resistance and / or crank or ceramic body.
14.3. Cleaning Conditions
Do not clean after soldering. If cleaning, please contact us.
14.4. Resin coating
The impedance value may change due to high cure-stress of resin to be used for coating/molding products. An
open circuit issue may occur by mechanical stress caused by the resin, amount/cured shape of resin, or operating
condition etc. Some resin contains some impurities or chloride possible to generate chlorine by hydrolysis under
some operating condition may cause corrosion of wire of coil, leading to open circuit. So, please pay your careful
attention when you select resin in case of coating/molding the products with the resin.Prior to use the coating resin,
please make sure no reliability issue is observed by evaluating products mounted on your board.
14.5. Attention regarding P.C.B. bending
The following shall be considered when designing and laying out P.C.B.'s.
(1) P.C.B. shall be designed so that products are not subject to the mechanical stress due to warping the board.
[Products direction]
Products shall be location the sideways
direction (Length:a<b) to the mechanical
stress.
(2) Components location on P.C.B. separation.
It is effective to implement the following measures, to reduce stress in separating the board.
It is best to implement all of the following three measures; however, implement as many measures as possible
to reduce stress.
Contents of Measures Stress Level
(1) Turn the mounting direction of the component parallel to the board separation surface. A > D *1
(2) Add slits in the board separation part. A > B
(3) Keep the mounting position of the component away from the board separation surface. A > C
〈
Poor example
〉〈
Good example
〉
b
a
Perforation
Slit
B
C
D