Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering.
P61E7.pdf 01.10.17
Chip Type Discriminators CDACV Series Notice
■ Notice (soldering and mounting)
1. Standard Reflow Soldering Condition
(1) Reflow
5sec.
240
230
Gradual
Cooling
150
60
30
Time (sec.)
(2) Soldering Iron
Lead terminal is directly contacted with the tip of
soldering iron of 280±5˚C for 3.0±0.5 seconds.
2. Wash
The component cannot be withstand washing.
■ Notice (handling)
1. The component may be damaged if excess mechanical
stress is applied to it mounted on the printed circuit
board.
[Component direction]
Put the
component
lateral to the
direction in
which stress
acts.
2. Design layout of components on the PC board to
minimize the stress imposed on the warp or flexure of the
board.
[Component layout close to board]
3. After installing chips, if solder is excessively applied to
the circuit board, mechanical stress will cause destruction
resistance characteristics to lower. To prevent this, be
extremely careful in determining shape and dimension
before designing the circuit board diagram.
4. When the positioning claws and pick up nozzle are worn,
the load is applied to the chip while positioning is
concentrated to one positioning accuracy, etc. Careful
checking and maintenance are necessary to prevent
unexpected trouble.
Perforation
B
Susceptibility to
stress is in the order
of : A>C>B
C
A
Slit
11
5. When correcting chips with a soldering iron, the tip of the
soldering iron should not directly touch the chip
component. Depending on the soldering conditions, the
effective area of terminations may be reduced. the use of
solder containing Ag should be done to prevent the
electrode erosion.
6. Do not clean or wash the component as it is not
hermetically sealed.
7. In case of covering discriminator with over coat,
conditions such as material of resin, cure temperature,
and so on should be evaluated well.
8. Accurate test circuit values are required to measure
electrical characteristics.
It may be a cause of mis-correlation if there is any
deviation, especially stray capacitance, from the test
circuit in the specification.
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MURATA [ muRata ]
