Humidity Indicator Card Humitector™ Type 2

To help assure integrity of moisture sensitive surface mount devices in a dry pack environment

Edition Date :
July 08, 2021
Humitector Type 2 Humidity Indicator Card, used together with a Desi Pak® desiccant, can help provide a complete history of a dry pack environment for moisture sensitive surface mount devices (SMD's) (MSD - moisture sensitive device).  It complies with IPC / JEDEC standard, J-STD-033D. Humitector Type 2 is halogen and cobalt dichloride free.

Humitector™ Type 2 non-reversible humidity indicator card

  • 60% non-reversible indicator spot provides a clear permanent visual signal that moisture sensitive surface mount devices have been exposed to humidity for a prolonged period of time
  • Complies with the latest revision of the Joint Electron Device Engineering Council IPC/JEDEC standard, J-STD-O33D
  • halogen and Cobalt dichloride free, a chemical regulated under European Chemical Bureau (ECB) REACH directives
  • Meet or exceed applicable ECB regulations
  • Easy to use with typical applications of dry packing (humidity indicator card, desiccant, moisture barrier bag, moisture sensitive label) of moisture sensitive surface mount devices - MSDs, SMDs
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JEDEC - Humidity Indicator Cards

The Humitector™ Type 2 non-reversible humidity indicator card (HIC) provides verifiable color-change accuracy, as required by the Joint Electron Device Engineering Council  IPC/JEDEC standard J-STD-033D, Handling, Packing, Shipping and Use of Moisture/Reflow and/or Process Sensitive Devices.  Humitector Type 2 non-reversible humidity indicator cards are halogen free and free of cobalt dichloride, and meet or exceed applicable European Chemical Bureau (ECB) regulations.

The use of Type 2 HICs with a non-reversible 60% spot indicator is preferred by IPC/JEDEC standard J-STD-033D.


Download our Humitector™ Type 2 non-reversible humidity indicator card Whitepaper and Infographic in the "Documents" section.

Dry Packing

To control damaging moisture and ensure that reflowable components and subassemblies can be safely and reliably assembled, the J-STD-033D standard specifies that devices be "dry packed" or "dry pack" for storage or shipment.  Typically, dry packing consists of the surface mount device (SMD) packages in their protective packaging: tube (sticks, magazines), tape and reel, or tray, a humidity indicator card, desiccant, moisture barrier bag, and a moisture-sensitive label.

Examples of SMD packages and technologies include:
  • ball grid arrays (BGAs)
  • capacitors and resistors
  • light-emitting diodes (LEDs)
  • plastic leaded chip carriers (PLCCs)
  • quad flat packs (QFPs)
  • small outline integrated circuits (SOICs)
  • transistors and diodes

When used in these dry pack configurations, the Humitector Type 2 non-reversible humidity indicator card can help provide complete proof of dry pack integrity, an assurance that moisture sensitive contents have not been exposed to high humidity for a prolonged period at any time during packaging, storage or transport.  Conversely, if package contents are exposed to high levels of relative humidity, the blue color contained in the non-reversible, 60% indicator provides a clear and permanent visual signal, spreading outside of the black indicator circle that surrounds it.

Traditional vs. Type 2 Humidity Indicator

Thanks to its non-reversible indicator, the Humitector Type 2 card helps provides a complete history of the dry pack environment.  Conventional humidity indicator cards, with only reversible indicators, reflect only current (dry or humid) conditions.  If products are exposed to damaging humidity for a prolonged period but are returned to a dry environment before the card is checked, such damage could go undetected. 

Further, per section of J-STD-033D (April 2018), HI cards cannot be re-used in dry packing if the 60% spot indicates it has surpassed the threshold. With the Humitector Type 2 cards non-reversible 60% indicator, one can easily see if the threshold has been surpassed by the permanent colored spot migration beyond its black circle.

Download the full product sheet for comparable differences between a traditional reversible humidity indicator card and the Humitector™ Type 2 non-reversible humidity indicator card. 

Clariant, the originator of the color change humidity indicator card, offers a wide variety of Humitector™ humidity indicators.


Visit our Desiccant Bags page to learn more about Desi Pak® bentonite clay desiccants, a cost-effective desiccant for use in dry-packing electronics. 

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Ryan Grauer
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