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GCM32ER71A226KE12L Datasheet, PDF (57/67 Pages) Murata Manufacturing Co., Ltd. – Chip Monolithic Ceramic Capacitors for Automotive
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Continued from the preceding page.
2. Check the cropping method for the printed circuit board
in advance.
2-1. Printed circuit board cropping shall be carried out by
using a jig or an apparatus to prevent the mechanical
stress that can occur to the board.
(1) Example of a suitable jig
Recommended example: the board should be
pushed as close to the cropping jig as possible
and from the back side of the board in order to
minimize the compressive stress applied to the
capacitor.
Not recommended example: when the board is
pushed at a point far from the cropping jig and
from the front side of board as below, the
capacitor may form a crack caused by the tensile
stress applied.
[Outline of Jig]
Printed Circuit Board
C03E.pdf
May.17,2013
!Caution
V-groove
Board Cropping Jig
Printed Circuit Board
Recommended
Direction of Load
Components
Load Point
Not recommended
Load Point
Direction of Load
Printed Circuit Board
Components
(2) Example of a suitable machine
An outline of a printed circuit board cropping
machine is shown as follows. Along the lines with
the V-grooves on the printed circuit board, the top
and bottom blades are aligned to one another
when cropping the board.
The misalignment of the position between top and
bottom blades may cause the capacitor to crack.
[Outline of Machine]
[Principle of Operation]
Top Blade
Printed Circuit Board
Top Blade
V-groove
[Cross-section Diagram]
Bottom Blade
Printed Circuit Board
V-groove
Recommended
Top Blade
Top-bottom Misalignment
Top Blade
Not Recommended
Left-right Misalignment
Top Blade
Front-rear Misalignment
Top Blade
Bottom Blade
Bottom Blade
Bottom Blade
Bottom Blade
Continued on the following page.
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