GNM314R61A105MA13D Datasheet, PDF (18/24 Pages) Murata Manufacturing Co., Ltd. – CHIP MONOLITHIC CERAMIC CAPACITOR GNM314R61A105MA13_ (1206, X5R, 1uF, 10Vdc)

! Caution
7.Printed Circuit Board Cropping
1. After mounting a capacitor on a printed circuit board, do not apply any stress to the capacitor that is
caused by bending or twisting the board.
1-1. In cropping the board, the stress as shown right may cause the capacitor to crack.
Try not to apply this type of stress to a capacitor.
Bending
①
Twisting
1A
2. Check of 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 which can occur to the board.
(1) Example of a suitable jig
Recommended example: the board should be pushed as close to the near the cropping jig as possible
and from the back side of board in order to minimize the compressive stress applied to 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
to capacitor.
Recommended
Not recommended
Outline of jig
Printed circuit
board
V-groove
Printed circuit
board
Direction of load
Component
s
Load point
Load point
Direction of
load
Printed circuit ^Components
board
Board cropping jig
(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 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
Top blade
Printed circuit board
Principle of operation
Top blade
Cross-section diagram
Printed circuit board
V-groove
Bottom blade
V-groove
Recommended
Top-bottom misalignment
Top blade
Top blade
Not recommended
Left-right misalignment Front-rear misalignment
Top blade
Top blade
Bottom blade
JEMCCC-0010Q
Bottom blade
18
Bottom blade
Bottom blade