Answer
It must be noted that the solderbility of the external electrode may deteriorated when stored in an atmosphere filled with moisture, dust, or a reactive oxidizing gas (hydrogen chloride, hydrogen sulfide, sulfuric acid).
Should not location with particularly high temperature and high humidity, and store in conditions not exceeding 35 ℃ and 85 % RH.
When it is kept for a long term, the solderbility of the external electrode may deteriorate for oxidation of electrode surface.So our recommend keeping-period is within 6month. Further, it's different in the condition depending on the items, so please inquire for details.
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