Our dry cabinets & dry storage options provide a low (<0.5%), managed degree of humidity. Moisture absorbing components including digital components, circuit boards, nano materials, contact lenses, laboratory examples as well as other susceptible components are kept dry and free from water ingress. The dehumidification to less than .5% RH is eligible Dry Storage Cabinets not just for unlimited safe storage, but also means they can safely remove moisture, thus resetting flooring life without having oxidation, even at ambient temperatures.

Solutions for your storage of electronic components and compositions to avoid two of the largest problem triggers: Oxidation and Diffusion.

The storage of electronic components and compositions is challenging, and more and more so due to two issues.

As a result of rapid alterations in packaging design and materials, many companies find themselves forced to purchase additional quantities of elements so that you can guard against the impact of component obsolescence on the last product styles. As a result produces an issue of long term stock storage

Product lifecycles have grown to be very short with new models coming out faster than before. However, numerous producers, such as vehicle providers, must ensure that the availability of replacement components including PCBs for up to a decade. This case also necessitates the progress buy and extended storage space of components and materials. Further complicating the problem is that most elements should not be kept for more than 10 many years without having special dealing with methods.

Component micro-cracking caused by the absorption and rapid release of dampness. The largest danger posed is moisture. It is the reason for two of the largest problem triggers: Oxidation and Diffusion.

Because of surface area oxidation, components and PCB’s can are afflicted by reduced solderablity, which frequently brings about complete failure. Diffusion of vapour and noxious elements in the internal structure of the components or PCB’s may result in long term disintegration of conductor pathways and solitude levels. Both risks may be prevented by correct handling and dried out storage space.

The oxidation process – contact rust

Within an ultra-dried out environment there is absolutely no corrosion. For corrosion to happen, two demands should be met: there has to be a means of oxidation along with a watering solution, which functions as an electrolyte. The o2 in the air forms the means of oxidation, the vapour (moisture) the electrolyte. The critical restrict where oxidation with oxygen happens lies as outlined by the metal or alloy at among 40 to 70 % RH. Which means that more than 8 grams of vapour per m³ should be existing.

Remedy 1: Dried out Storage space Cabinet

The absolute moisture in Electronic Dry Cabinets is situated at a temperature of 20 °C and <2%RH with less than 0.35 g/m³. Under these conditions no cathode reaction is present and no oxidation can take place.

Solution 2: Dampness Barrier Bags

In humidity protection hand bags packed under vacuum with a relaxation pressure of ca. 6 mbar you will have among .1 and .06 g vapour per m³. When the bags are full of nitrogen, neither a method of oxidation, nor an electrolyte can be purchased, and oxidation is impossible.

The Diffusion procedure

The vapour inside the atmosphere diffuses into hygroscopic components. The cause of here is the so named vapour pressure – this implies the part stress of the vapour that is present in air. The larger the vapour pressure, the faster the components or PCB’s soak up humidity and with this the permissible processing time decreases.

All elements courses 2a to 5a according to the classification of IPC/JEDEC J-STD020D soak up no dampness having a vapour stress of < 2.82. At this particular degree they may be kept and refined forever.

ProDry Storage space Cupboards maintain more than 24 hours on average a vapour stress of < 0.95 mbar reliably and effectively protecting from moisture diffusion. For Desiccant Dry Cabinets in excess of 5 many years, a combination of the two systems anmtvj recommended. The storage in humidity protection bags with nitrogen existing in a simple dry storage space cupboard with 5 % RH.

Moisture Control Cabinets – Want Additional Information..

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