Our dry cabinets & dry storage solutions deliver a low (<0.5%), controlled degree of moisture. Moisture absorbent materials including digital elements, circuit panels, nano fibers, contact lenses, lab examples along with other vulnerable materials are maintained dry and clear of water ingress. The dehumidification to less than .5% RH qualifies Low Humidity Cabinets not merely for unlimited secure storage space, but additionally indicates they can securely remove dampness, therefore resetting flooring life without oxidation, even at background temperature ranges.

Solutions for your storage space of digital elements and compositions in order to avoid two of the largest problem triggers: Oxidation and Diffusion.

The storage space of digital elements and compositions is problematic, and more and more so due to two issues.

Because of rapid alterations in packaging design and material, most companies end up compelled to purchase extra quantities of components in order to shield from the impact of element obsolescence on their own last product styles. This in turn produces a problem of long lasting inventory storage

Product lifecycles have grown to be really short with new models coming out sooner than in the past. However, many producers, including vehicle providers, must ensure the availability of replacement components such as PCBs for up to a decade. This example also necessitates the progress buy and extended storage space of components and components. Additional complicating the problem is that most elements can not be stored for more than 10 years without having special dealing with procedures.

Component mini-cracking caused by the absorption and rapid launch of dampness. The biggest danger posed is humidity. It is the reason behind two of the biggest problem triggers: Oxidation and Diffusion.

As a result of surface oxidation, elements and PCB’s can have problems with reduced solderablity, which often leads to complete failure. Diffusion of vapour and noxious elements within the inner framework of the elements or PCB’s can lead to long-term disintegration of conductor paths and isolation layers. Each risks can be prevented by proper dealing with and dried out storage space.

The oxidation procedure – contact rust

In an extremely-dry environment there is not any corrosion. For corrosion to occur, two demands must be fulfilled: there has to be a method of oxidation and a watering solution, which functions as being an electrolyte. The o2 in the air forms the way of oxidation, the vapour (humidity) the electrolyte. The critical limit in which oxidation with oxygen occurs is situated in accordance with the metal or alloy at between 40 to 70 % RH. This means that greater than 8 grams of vapour per m³ has to be present.

Solution 1: Dry Storage space Cupboard

The complete humidity in Dry Cabinets For PCB Storage is situated with a heat 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: Moisture Buffer Bags

In moisture protection bags loaded below vacuum using a relaxation stress of ca. 6 mbar you will see between .1 and .06 g vapour for each m³. Once the hand bags are filled with nitrogen, neither a way of oxidation, nor an electrolyte are available, and oxidation is extremely hard.

The Diffusion procedure

The vapour in the environment diffuses into hygroscopic components. The main cause of here is the so called vapour stress – this implies the partial stress in the vapour which is contained in the air. The larger the vapour pressure, the quicker the components or PCB’s absorb humidity along with this the permissible processing time reduces.

All components classes 2a to 5a in accordance with the category of IPC/JEDEC J-STD020D absorb no moisture using a vapour stress of < 2.82. At this particular level they may be stored and processed forever.

ProDry Storage Cupboards maintain more than twenty four hours on average a vapour pressure of < 0.95 mbar reliably and effectively protecting from moisture diffusion. For Dehumidifying Dry Cabinets in excess of 5 many years, a mix of the 2 systems anmtvj suggested. The storage space in moisture safety hand bags with nitrogen existing in a easy dried out storage cupboard with 5 % RH.

Dry Storage Cabinets – Useful Points..