CHAPTER 3  SOLDERING CONDITIONS (9.78KB)

3.3 Dry Pack(1.80KB) To 3.3.3 Resealing a complete dry pack(1/2 Page)(1.35KB)To 3.4.1 NEC Electronic's concept of recommended soldering conditions(1.36KB)

3.3.1 Complete dry pack and simple dry pack 3.3.2 Duration storage of complete dry pack
3.3.3 Resealing a complete dry pack    

3.3.3 Resealing a complete dry pack (2/2 Page)

(2) Limitations

Observe the following points when resealing a dry pack with tape.
1. An opened dry pack can only be resealed once, within the time limit, and following the method shown in Figure 3-22 on the previous page.
2. The time limit for resealing is 168 hours.
3. The resealing time limit does not include the time limit that applies after the dry pack is opened.
For the time limit that applies after the dry pack is opened, refer to the soldering conditions of the relevant product.


The following explains an example of calculation for storage time

.
Example) If the products are specified to be used within 72 hours after the dry pack has been opened, the valid storage period of these products is as follows:
Example of Caluculation for storage time(4.46KB)
Figure 3-23 Example of Calculation for storage time
In this case, the valid period after the dry pack has been opened once is X + Z = 72 hours, and the storage time if the dry pack is closed again with an adhesive tape Y is 168 hours. Therefore, the total storage time is 240 hours.

To 3.3.3 Resealing a complete dry pack(1/2 Page)(1.35KB)To 3.4.1 NEC Electronic's concept of recommended soldering conditions(1.36KB)

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