Spec No. JEFL243E-0021A-01 P 6/9
MURATA MFG.CO., LTD
Reference Only
14.8 Specification of Outer Case
Outer Case Dimensions
(mm)
Standard Reel Quantity in Outer Case
(Reel)
WW
186 5 186
5
∗ Above Outer Case size is typical. It depends on a quantity of an order.
15.
△
!
Caution
15.1 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.
15.2 Limitation of applications
(1) Aircraft equipment (6) Transportation equipment (vehicles, 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.
16. Notice
This product is designed for solder mounting. (reflow soldering only)
Please consult us in advance for applying other mounting method such as conductive adhesive.
16.1 Flux and Solder
Flux
Use rosin-based flux, but not highly acidic flux (with chlorine content exceeding 0.2(wt)%. )
Do not use water-soluble flux.
Solder
Use Sn-3.0Ag-0.5Cu solder
Use of Sn-Zn based solder will deteriorate performance of products.
In case of using Sn-Zn based solder, please contact Murata in advance.
16.2 Assembling
<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.
16.3 Resin coating
The impedance value may change and/or it may affect on the product's performance due to high cure-stress of
resin to be used for coating / molding products. So please pay your careful attention when you select resin. In prior
to use, please make the reliability evaluation with the product mounted in your application set.
16.4 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 machanical
Stress.
W
D
ラベル
H
Z Z
right direction
wrong direction
〈
Poor example
〉
〈
Good example
〉
b
a