
DESCO 3HIC125-CF – Cobalt-Free Humidity Indicator Card
The 3HIC125-CF is a cobalt-free humidity indicator card from DESCO designed for internal monitoring of relative humidity in sealed packages. The card features three indicator dots, corresponding to 30%, 40%, and 50% relative humidity (RH). The indicators visibly change from brown (dry) to yellow (humid) and are reversible, allowing humidity changes to be observed after opening the packaging.
Material and Function
- Material: Blotting paper impregnated with a non-cobalt based solution, as specified in the manufacturer's documentation.
- Color Change: Indicator dots change color from brown to yellow when the specified RH levels are exceeded; the dots are reversible.
- Primary Application: Monitoring humidity levels inside barrier bags containing desiccant to assess humidity exposure for moisture-sensitive electronic components.
Documentation
The product's technical information and verifications are documented by the manufacturer. Refer to the manufacturer's datasheet for details on size, packaging, and test references:
View datasheet from manufacturer
Typical Applications
The 3HIC125-CF is intended for use inside moisture barrier bags with desiccant to monitor humidity exposure for moisture-sensitive electronic components. The card is used during inspection after opening the packaging to determine if internal conditions have exceeded the specified RH limits (30%, 40%, 50%).
Specifications
- Product Name: 3HIC125-CF
- Manufacturer: DESCO
- Part number: 3HIC125-CF (as specified in manufacturer's documentation)
- Card Size: 2" x 3"
- Standard Packaging: 125 pieces per metal can
- Relative Humidity Indicators: 30% / 40% / 50%
- Material: Blotting paper impregnated with non-cobaltous solution
- Color Change: Brown (dry) → Yellow (humid); reversible indicators
- Accuracy: Based on an ambient temperature of 75°F (as specified in datasheet)
- Tolerance: Approx. 2.5% per 10°F deviation from 75°F (as specified in datasheet)
- Verification / Reference: MIL-I-8835A and IPC/JEDEC J-STD-033 as specified in manufacturer documentation
- Application and Storage Instructions: TB-9101, TB-9062 (referenced in datasheet)
- Place of Manufacture: Made in the United States of America
Sources
- Manufacturer's datasheet: View datasheet from manufacturer
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