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.

MSL 2: Components in this category have low to moderate moisture sensitivity. They can be exposed to ambient air but are recommended to be reflow soldered within a specified time frame, usually indicated as the "floor life" or "floor time."

The MSL rating of an IC determines its floor life before board mounting after the drypack packing (MSL2 and higher number ratings) has been opened. Each drypack bag includes a desiccant and a humidity control card, which should be checked immediately after opening the drypack bag for current IC package status.

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 …

IPC/JEDEC Moisture Sensitivity Levels (MSL) Different package types exhibit different sensitivity levels to moisture ingress and its effects. The older, through-hole, bulkier packages absorb moisture per volume at a slower rate than the thinner, surface-mount packages of recent times.

Moisture Sensitivity Level (MSL) is a standard defined by IPC/JEDEC J-STD-020 that indicates how susceptible a moisture/reflow-sensitive electronic component is to moisture-induced stress during storage, handling, and the PCB assembly process.

IPC/JEDEC J-STD-020 defines the Moisture Sensitivity Levels (MSL) of surface mount devices. Moisture-sensitive devices are baked and vacuum-sealed inside a moisture barrier bag prior to shipment in order to minimize their tendency to exhibit popcorn cracking during board mounting.

Mar 18, 2024 · Components classified as MSL 2 or MSL 3 have moderate sensitivity to moisture. They may require additional precautions during storage and handling to prevent moisture absorption. Components with MSL 4 or MSL 5 designations are highly sensitive to moisture.

Jan 20, 2025 · In PCB manufacturing, the moisture sensitivity level of components is a key indicator of whether the PCB can be durable. We will explain its levels and why it is a key indicator with the theme of pcb msl levels.