1/2TYDES550 3M, 1/2TYDES550 Datasheet - Page 2

• Manufacturer Part Number: 1/2TYDES550
• Description: DESICCANT 1/2 TYVEKBAG 550/PAIL
• Manufacturer: 3M

Specifications of 1/2TYDES550

• Cleaner, Treatment Type: Desiccant
• Applications: Absorb Moisture
• Color: White
• Size: 1/2 unit
• Body Material: Montmorillonte Clay / Plastic
• External Height: 80mm
• External Width: 33mm
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 51111765593; 80000955452

Desiccant
DESICCANT, PLASTIC OR KRAFT POUCH
Desiccant is a drying agent that is used to absorb moisture from the air inside moisture barrier bags. Desiccant absorbs moisture vapor (humidity) from the air left inside the bar-
rier bag after it has been sealed. Any moisture that penetrates the bag will also be absorbed. Desiccant remains dry to the touch even when it is fully saturated with moisture
vapor.
Desiccant is sold by the “Unit” or fractional Unit, or in grams. One unit of desiccant will absorb a specific amount of moisture. A unit weighs about 33 grams. There are several stan-
dards for calculating the desiccant loading for bags. Each standard is for a specific application, and requires different amounts of desiccant for the same bag size. Once you deter-
mine which standard is correct for your dry packing application, apply these formula, or ask your 3M representative for our spreadsheet Desiccant Calculator.
Certain kinds of electronic devices called “Surface Mount Devices” or SMD’s are mounted on a circuit card by high temperature soldering. The body of the SMD is made from
plastic that absorbs moisture from the air. When the case is heated during soldering, the moisture inside turns to steam, and may break the device as the steam escapes.
Keeping SMD’s dry before soldering means that the devices will not be damaged.
Desiccant
Dry packaging for SMD’s.
Bag Size, Bag MVTR, Storage Time in Months.
Units=
8” x 10” inch Barrier Bag, with a 0.002 MVTR and a
12 month storage time.
8” x 10” x 2 sides =160 sqin.
Units=
Units = .2
Calculating Desiccant Loading
0.304 x Months x Bag MVTR x Bag Area
0.304 x 160 sqin x 0.002 MVTR x 12 months
Use 1/6 unit of Desiccant.
in Plastic or Kraft Paper Pouch
Moisture Capacity
6.6667 g/unit
P
R
Dry packaging for SMD’s. Allows adjustment of environmental conditions.
Bag Area, Bag MVTR, Months of Storage, Maximum Interior Humidity
(MIH).
Units=
8” x 10” inch Barrier Bag, with a 0.02 MVTR, a 12 month storage time, and
a MIH of 20%.
8” x 10” x 2 sides =160 sqin.
10% MIH: 3.0 g/unit 20% MIH 4.8 g/unit 30% MIH 5.8 g/unit 40% MIH 6.2 g/unit
Units=
Units = 1.8 units
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D
SEE PAGE
0.231 x Bag Area x Bag MVTR x Months
0.231 x 160 sqin x 0.02 MVTR x 12 months
U
C
1
Moisture Capacity
Use 2 units of desiccant.
T
4.8 g/unit
1110-
D
G
A
T
3M Electronics Solutions Division
6801 River Place Blvd
Austin, TX 78726-9000
US and Canada: 866-722-3736
Fax: [phone]
Intl: 919-718-0000; Fax: [phone]
email: [e-mail]; www.3Mstatic.com
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General dry packaging.
Bag Size
Units = 0.011 x Bag Area in square inches.
8” x 10” inch Barrier Bag
8” x 10” x 2 sides =160 sqin.
Units = 0.011 x 160 sqin = 1.8
Use 2 Units of desiccant.
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All other trademarks herein are the property
of their respective owners.