5005-09NG Datasheet, PDF (101/116 Pages) Aavid, Thermal Division of Boyd Corporation – How to Use This Catalog

Thermalfilm™ and Thermalfilm™ MT
Thermalfilm™ Polyimide Plastic Films
Thermalfilm™ and Thermalfilm™ MT are low cost polymide plastic insulating films designed
to be an improved replacement for mica. These insulators have a distinctive amber color and
can be easily recognized and assembled on a production line.
Thermalfilm™ MT, made from high performance Kapton™ MT material, provides thermal
conductivity nearly 2-5 times greater than standard Thermalfilm™. Both insulators have an
extremely high resistance to flow or thin out under high compressive stresses, particularly at
elevated temperatures. Excellent physical, mechanical and electrical properties remain nearly
constant over a wide range of temperatures and frequencies. They are radiation resistant,
have no melting points, and have no known organic solvents. The polymide plastic film is UL
listed as a component in UL’s publication “Component – Plastic Material” dated September
18, 1969. The UL card number is E39505R, Guide QMFZ2 filed by E. I. du Pont de Nemours
& Co., Inc. Thermalfilm^TM is rated 94-V/0.
ORDERING INFORMATION
For standard pre-cut sizes of Thermalfilm^TM
and Thermafilm^TM MT see page 102.
ELECTRICAL – TYPICAL VALUE @ 25° C
PROPERTY
THERMALFILM™
Dielectric strength
0.03mm (1-mil)
240 x 10³ volts/mm
(6,100 volts/mil)
Dielectric constant
3.5
Dissipation factor
0.002
Volume resistivity
10¹⁷ ohm-cm
Surface resistivity
10¹⁶ ohms
Corona start voltage 0.025mm (1-mil) 465 volts
Insulation resistance
100.000 megohm mfds.
THERMALFILM™ MT
177.2 x 10³ volts/mm
(4500 volts/mm)
4.3
0.002
10¹⁷ ohm-cm
10¹⁶ ohms
465 volts
100.000 megohm mfds.
Material thickness
Ultimate tensile strength (MD)
Bursting strength test (Mullen)
Tear strength – initial
Density
Folding endurance (MIT)
Melting point
Zero strength temperature
Cut through temperature
Service temperature
Thermal conductivity
Flammability
PHYSICAL
0.05mm (0.002”)
0.05mm (0.002”)
1.72 x 10⁸ Pa (25,000 psi)
103 MPa (1500 psi)
3.10 x 10⁵ Pa (45 psi)
0.31 MPa (45 psi)
27,559 gm/mm (700 gm/mil)
1.42 gm/cm³ (88.7 lb/ft³)
>10,000 cycles
35,433 gm/mm (900 gm/mil)
1.78 gm/cm³ (111.1 lb/ft³)
>10,000 cycles
THERMAL
NONE
NONE
815^ºC (1499^ºF)
815^ºC (1499^ºF)
435^ºC (815^ºF)
435^ºC (815^ºF)
525^ºC (977^ºF)
525^ºC (977^ºF)
-260^ºC to 240^ºC
-260^ºC to 240^ºC
(-436^ºF to 464^ºF)
(-436^ºF to 464^ºF)
0.156W/m ^ºC
0.379 W/m ^ºC
(0.09 BTU/hr-ft-ºF)
(0.219 BTU/hr-ft-^ºF)
V-0, UL “E” card E39505
V-0, UL “E” card E39505
TEST METHOD
ASTM D149-64
ASTM D150-64T
ASTM D150-64T
ASTM D257-61
ASTM D257-61
ASTM D1868-61T
Based on 0.05 mfd wound
capacitor using 0.25 mm
(1-mil) Film
ASTM D882-64T
ASTM 0774-63
ASTM D1004-61
ASTM D1505-63T
ASTM D2176-63T
Hot Bar (Du Pont test)
Weighted probe on heated film
(Du Pont test)
Model TC-1000 twin heatmeter
Comparative tester
UL 94
Notes: One mil equals 0.001 inch
Dimensional tolerances are ± 0.38mm (0.015”), hole diameters are ± 0.25mm (0.010”) and angularity is ± 1 1/2° unless otherwise specified.
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