Component Floor Life

At the end of its useful life it is expected to be obsolescent.

Component floor life.

5 years floor finishes 30 other sources have more detailed life span estimates based on specific floor finish types which have life spans ranging from 5 100 years. Each time we put a new desiccant pack and new humidity indicator card in the msd bag and seal it. For office buildings refer to boma. Floor life the allowable time period between removal of moisture sensitive devices from a moisture barrier bag dry storage or dry bake and the solder reflow process.

Ge energy connections component shelf life storage condition requirements for electronic suppliers uncontrolled when printed ge proprietary. Moisture sensitivity level relates to the packaging and handling precautions for some semiconductors. The customer need only be aware of msl 3 devices in regards to floor life. Floor life of msd parts we run small jobs so a reel of msd components could be opened and closed a number of times.

10 boma painted walls have a life span of 5 years while internachi lists interior paint as having a life span of 10 15 years. If we total all the times we opened the bag it may exceeds 168 hours. What does pot life mean when using an epoxy floor coating. Internal plated contacts becoming tarnished or lubricant for moving parts drying out.

Good epoxy flooring will have less than an hour pot life at 70 degrees. For example if the customer uses only part of tapeand reeled product rated msl 3 and the remaining product is thus exposed to ambient temperature and humidity one must refer to the floor life table 7 1 in j std 033c to determine actual floor life on the part. The msl is an electronic standard for the time period in which a moisture sensitive device can be exposed to ambient room conditions 30 c 85 rh at level 1. Depreciation is a business tax deduction regulated by the internal revenue service irs.

A long pot life or even worse an unlimited pot life is a sure sign of an inferior floor epoxy. Component shelf life is really an oem specification and i would expect the oem to determine shelf life based on a couple items one a specific characteristic of the component that derogates over time. 30 c 60 rh at all other levels. Look at the pot life which is the time you have to work with once the epoxy is mixed.

The moisture sensitivity level msl indicates the floor life of the component its storage conditions and handling precautions after the original container has been opened. The permissible time from opening the moisture barrier bag until the final soldering process that a component can remain outside the moisture barrier bag is a measure of.