Electrical Properties - Parylene


 
PROPERTIES1
METHOD OR CONDITIONS
PARYLENE  C
EPOXIES2
SILICONES2
URETHANES2
Dielectric strength, volts/mil short time (1 mil  films) ASTM D149-64 5,000
Corr. to 1/8" ASTM D149-64 590 400-500 550 450-500
Step-by-step (1 mil films) ASTM D149-64 4,700 n/a n/a n/a
Volume resistivity, ohms (23ºC, 50% RH) ASTM D257-61 (Dielectric -- 1 in2 mercury) 8.8 x 1016 1012-1017 2 x 1015 2 x 1011-1015
Surface resistivity, ohms (23ºC, 50% RH) ASTM D257-61 (Dielectric -- 1 in2 mercury) 1014 n/a n/a n/a
Dielectric constant: ASTM D160-65T (Dielectric -- 1 in2 mercury)  
60 Hz 3.15 3.5-5.0 7.75-3.05 4-7.5
103 Hz 3.10 3.5-4.5 n/a 4-7.5
106 Hz 2.95 3.3-4.0 2.6-2.7 6.5-7.1
Dissipation factor: ASTM D150-65T (Dielectric -- 1 in2 mercury)  
60 Hz 0.020 0.002-0.01 0.007-0.001 0.015-0.017
103 Hz 0.019 0.002-0.02 n/a 0.05-0.06
106 Hz 0.013 0.03-0.05 0.001-0.002 n/a
 
1.Properties measured on parylene films, 0.001 inch thick.
2.Properties depend somewhat on deposition conditions.