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Vapor Pressure at lead free reflow temperatures

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#43348

Vapor Pressure at lead free reflow temperatures | 15 August, 2006

With the added temperature peak associated to Lead free reflow is anyone seeing or concerned about the increased vapor pressure that may result from moisture entrapment in moisture sensitive components?

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Rob

#43437

Vapor Pressure at lead free reflow temperatures | 21 August, 2006

Yes, appropriate storage & component handling proceedures should be followed depending on the MSL (Moisture Sensitivity Level) class of the component.

Some component suppliers are now marking the MSL class on the label, along with PBT (Peak Body Temperature) & lead free status.

If you don't have the facility to bake & vacuum seal components in house it is worth talking to your suppliers to ship in smaller pack sizes.

I hope that is of help,

Rob.

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