NASA Goddard Space Flight Center

Characterize the Breakdown Strength of Uralane 5750 (cont’)

The Uralane conformal coating would have to be extremely thin
(less than 1/10 mil) for the breakdown voltage to approach 50V.

* EB was measured from 3 mil thickness film samples by the supplier of Uralane

Breakdown Voltage (VDB) vs. Uralane Coating

Thickness

0

1000

2000

3000

4000

5000

0

0.5

1

1.5

2

2.5

3

Coating Thickness (mil)

data sheet VDB

Dielectric Breakdown Electric Field (EB)
Dependency on the Thickness of the Films

0

1000

2000

3000

4000

5000

0

0.5

1

1.5

2

2.5

3

Coating Thickness (mil)

EB given in Data Sheet (~1500 V/mil)*

Theoretical behavior for
reduced thickness

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Responsible NASA Officials:

   Michael Sampson/NASA GSFC Code 306
   Dr. Henning Leidecker/NASA GSFC Code 562
Additional Researchers: 

   Jong Kadesch/Orbital Sciences Corp.
   Jay Brusse/QSS Group, Inc.

Last Updated:

April 20, 2005

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