FEATURES
Dielectric: Stabilized PET film.
Adhesive: Modified polyester epoxy.
Available Coppers: Rolled-Annealed (RA), Electro-Deposited
High-Ductility (EDHD) or As-Rolled Untreated (ARNT). EDHD foils are suited for general use
and flex to install applications. RA foils are suitable for dynamic flexing applications.
ARNT foils are valuable for high frequency applications that require a smooth copper
surface on both sides.
Constructions: Contact Sheldahl Customer Support for available
constructions. Custom constructions may be ordered for high volume opportunities.
Processing: High quality flexible circuits can be produced using
standard circuit manufacturing procedures.
Preferred Storage: Material should be stored in dry, ambient
temperature. Excessive exposure to heat and moisture may cause copper oxidation.
Shelf Life: Typical expected shelf life is 12 months when stored
as recommended.
G1845 laminates have been developed specifically for flexible
printed circuitry, flat cable, and automotive applications that require the safety of a
flame-retardant system.
U.L. certified to 94-VTM-O for select constructions.
PROPERTY
TO BE TESTED |
- TEST METHOD
- (IPC-TM-650 unless noted)
|
SHELDAHL TYPICAL MEAN VALUE |
| Peel strength, minimum, lb./in. -
width |
- Method 2.4.9
- Method B as received
|
10.0 |
| Tensile strength, minimum,
lb./in.2 |
Method 2.4.19 |
22,000 |
| Elongation, minimum percent |
Method 2.4.19 |
90% |
| Flexural endurance, minimum
cycles |
Method 2.4.3 |
1,000 |
| Dimensional Stability, maximum,
percentage |
- Method 2.2.4
- Method B
- Method C
|
- 0.07
- 0.40
|
| Flammability, minimum percent O2
|
Method 2.3.8 |
30% |
| Dielectric constant, maximum (at
1 MHz) |
Method 2.5.5.3 |
3.2 |
| Chemical Resistance percentage |
Method 2.3.2, Method A |
90% |
| Dissipation factor, maximum (at 1
MHz) |
Method 2.5.5.3 |
0.015 |
| Volume Resistivity, minimum
megohm-cm |
Method 2.5.17 |
109 |
| Surface resistance minimum,
megohms |
Method 2.5.17 |
105 |
| Dielectric strength, minimum
volts/mil |
ASTM-D-149 |
3,000 |
| Moisture and Insulation
Resistance, minimum, megohms |
Method 2.6.3.2 |
105 |
| Moisture Absorption, maximum,
percent |
Method 2.6.2 |
1% |
- Based on 3 mil film x 1 oz treated copper. Flexural Endurance data is
based on 2 mil PET x 1 oz treated copper.
- Sheldahl does not guarantee, nor will it accept obligation or
liability based on the use of this data. Values may vary dependent upon material
construction. All data subject to change without notice.
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