Moisture Sensitivity Level 3 (MSL 3) Handling Guidelines The detrimental effects of absorbed moisture in semiconductor packages during SMT assembly have been well documented in technical publications, manufacturers’ literature and various industry standards.

Moisture sensitivity level (MSL) is a rating that shows a device's susceptibility to damage due to absorbed moisture when subjected to reflow soldering as defined in J-STD-020. It relates to the packaging and handling precautions for some semiconductors.

Moisture sensitivity level (MSL) is a rating established by JEDEC for electronic components that indicates the floor life of the component and provides the maximum allowable exposure for electronic components in humid environments.

Jul 23, 2019 · The Moisture Sensitivity Level – known in the electronics industry as simply “MSL” – helps identify how long a component can be exposed to 60-85% relative humidity at temperatures less than 86 degrees F before it becomes …

MSL 3: Components at this level are moderately sensitive to moisture and have a limited floor life. Exposure to ambient air should be minimized, and they typically require more stringent handling and storage procedures.

For example, an MSL 3 package will require a standard soak time of 192 hours, which is 168 hours of floor life plus 24 hours between bake and bag at the semiconductor manufacturer. See also: JEDEC Standards; J-STD-33 Bake Tables; Reliability Engineering;

Dec 18, 2023 · The MSL level specified by the manufacturer is indicated on the bag or label. The following example shows the label for MSL level=3: J-STD-033 requires the bag to include a symbol to inform users that its content is moisture sensitive.

Jul 18, 2018 · The warehouse must have basic temperature and humidity control at a temperature: 23℃ (±3℃) and a humidity: 30%~40%rh; The rack must be grounded, control the static electricity ; If the package has been opened, it needs to be vacuum sealed and have a tracking card to verify when it was sealed.

Moisture Sensitivity Level (MSL) is a classification outlined in the industry standard procedure IPC/JEDEC J-STD-020 to address the moisture absorption problem of non-hermetic packages. MSL defines moisture absorption into 6 different levels through standard test methods and criteria.

Jan 20, 2025 · Correct understanding of pcb msl levels can prevent component damage, enhance quality control and ensure product compliance. MSL levels range from 1 to 6, where level 1 represents the lowest sensitivity to moisture and level 6 represents the highest. Here is a detailed classification of each level: Share This Story, Choose Your Platform!