Moisture Sensitivity Levels (MSL)

For the most accurate and up-to-date lead-free status and MSL level of a given product and package, check the product listings on this website. Click on the zoom-in magnifying glass to access the information.

Floor life versus moisture sensitivity levels ¹:

MSL	Conditions	Floor Life
1	≤30°C and 85% RH	Unlimited
2	≤30°C and 60% RH	1 Year
2a	≤30°C and 60% RH	4 Weeks
3	≤30°C and 60% RH	168 Hours
4	≤30°C and 60% RH	72 Hours
5	≤30°C and 60% RH	48 Hours
5a	≤30°C and 60% RH	24 Hours
6	≤30°C and 60% RH	6 Hours ²

¹ Packages that are not sensitive to moisture do not require DRYPACK.

² MSL 6 packages must be baked before use, after which they have a 6-hour floor life.

• Packages Data Handbook Chapter 7: Packing Methods