4-1. For SMD type
SMD type LED products are equivalent to MSL4, unless otherwise specified. If the SMD type product absorbs moisture, the moisture may expand due to heat during reflow, etc., causing delamination at the interface inside the package, which may result in failure.
The silica gel indicator and the indicator card included in the moisture-proof bag will change color from blue to red when it absorbs moisture.
If the moisture-proof bag is unopened, store the product in an environment of 30°C or less and 60% humidity or less, with a maximum storage period of 12 months.
After opening the moisture-proof bag, the LEDs must be mounted within 72 hours in an environment of 30°C or less and 50% humidity or less.
If there are any unused LEDs remaining, place them in a moisture-proof bag together with silica gel and store them in a sealed container.
Please note that the 72 hours does not include the time the LEDs are stored in an airtight bag with silica gel after opening the bag.After the storage period has expired, bake the product once at most. If the indicator turns red within the storage period, baking treatment should be performed no more than once.
For the baking process, we recommend removing the device from the embossed carrier tape and baking it in an oven at 100°C for 24 hours.
4-2. For through-hole type LED
For through-hole type LEDs, store them at a temperature of 30°C or less and humidity of 70% RH or less, and keep them in the same location for up to one year.
The LEDs should be stored in an environment where they are exposed to corrosive gases, etc., which may cause deterioration of the leads.
