!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.
!Caution
Continued from the preceding page.
4. Optimum Solder Amount for Reflow Soldering
4-1. Overly thick application of solder paste results in a
excessive solder fillet height.
This makes the chip more susceptible to mechanical
and thermal stress on the board and may cause the
chips to crack.
4-2. Too little solder paste results in a lack of adhesive
strength on the termination, which may result in
chips breaking loose from the PCB.
4-3. Please confirm that solder has been applied
smoothly to the termination.
<Applicable to NFM Series>
[Guideline of solder paste thickness]
100-150µm: NFM15/18/21/3D/31
100-200µm: NFM41
NFM15CC/15PC
NFM18CC/18PC
0.4
0.25
1.0
0.7
2.2
1.3
C02E.pdf
Nov.27,2017
NFM18PS
NFM21CC/21PC
0.8
0.05 1.2
2.0
NFM21PS
0.6
1.4
2.6
NFM3DCC/3DPC
0.8
1.2
1.6
1.8
2.6
NFM31PC/31KC
1.0
2.5
3.9
NFM41CC/41PC
1.5
1.0
3.5
2.5
5.5
4.4
Inverting the PCB
Make sure not to impose any abnormal mechanical shocks to
the PCB.
Continued on the following page.
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