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                    HUMIDITY INDICATOR CARD (HIC)    
   

High relative humidity (RH) can cause significant, possibly irreparable damage to sensitive equipment, electronics, semiconductors, and supplies. To ensure dehydration measures work, Humidity Indicator Cards (HICs) measure the relative humidity inside sealed packages to allow immediate visual inspection of whether it has sustained unsafe humidity levels.

HICs are printed with moisture sensitive spots which respond to various levels of humidity with a visible color change from blue (dry), through lavender, to pink (humid).

The humidity inside dry packed barrier bags can be monitored by including an HIC inside. When the bag is opened, the card can be examined for proper dryness inside the bag. This indicates that the barrier bag and desiccant functioned correctly.

   
                       
                                   
               
                   
<3HIC-15A>         <3HIC-30A>    
 
                 
<3HIC-40L> <3HIC-50L>    
 
                 
   
<3HIC-40D>  
           
  <3HIC-30s> <3HIC-50s>          
<3HIC-50D>                              
 
                                   
<6HIC-60>      
                       
 
<6HIC-60N>    
  <6HIC-60A>  
                     
                               
 
    JEDEC/IPC TO RELEASE REVISION REQUIRING USE OF NEW, QUALITY TESTED HIC IN THE DRY PACKING OF SEMICONDUCTORS

In October 2005, the Joint Electronic Device Engineering Council (JEDEC) and IPC released a new revision of J-STD-033B, the standard governing the use and testing of HICs in the dry packaging of semiconductors. Whereas previous cards used a 5, 10, and 15 percent relative humidity spot system to indicate humidity exposure levels for moisture sensitive components, the new cards will now feature spots indicating 5, 10, and 60 precent.
 
<HIC-033B>
   
     
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