insulator. It combines special film with a

filled silicone rubber. The result is a

product with good cut-through properties

and excellent thermal performance.

ceramic insulators such as Beryllium Ox-

ide, Boron Nitride and Alumina. Ceramic

insulators are expensive and they break

and costs much less than ceramics.

Note: To build a part number, visit our

website at www.bergquistcompany.com.

TYPICAL APPLICATIONS INCLUDE

• Power supplies

• Motor controls

• Power semiconductors

CONFIGURATIONS AVAILABLE

• Sheet form, die-cut parts and roll form

• With or without pressure sensitive adhesive

PDS_SP_K10_1113

FEATURES AND BENEFITS

(@50 psi)

• Tough dielectric barrier against

cut-through

• High performance film

• Designed to replace ceramic insulators

PRODUCT DESCRIPTION

The High Performance

Polyimide-Based Insulator

November 2013

PROPERTY

IMPERIAL VALUE

METRIC VALUE

TEST METHOD

Color

Beige

Beige

Visual

Reinforcement Carrier

Polyimide

Polyimide

—

Thickness (inch) / (mm)

0.006

0.152

ASTM D374

Hardness (Shore A)

90

90

ASTM D2240

Breaking Strength (lbs/inch) / (kN/m)

30

5ASTM D1458

Elongation (%)

40

40

ASTM D412

Tensile Strength (psi) / (MPa)

5000

34

ASTM D412

Continuous Use Temp (°F) / (°C)

-76 to 356

-60 to 180

—

ELECTRICAL

Dielectric Breakdown Voltage (Vac)

6000

6000

ASTM D149

Dielectric Constant (1000 Hz)

3.7

3.7

ASTM D150

Volume Resistivity (Ohm-meter)

ASTM D257

Flame Rating

VTM-O

VTM-O

U.L.94

THERMAL

Thermal Conductivity (W/m-K)

1.3

1.3ASTM D5470

THERMAL PERFORMANCE vs PRESSURE

Pressure (psi)

10

25

50

100

200

TO-220 Thermal Performance (°C/W)

2.35

2.19

2.01

1.87

1.76

0.86

0.56

0.41

0.38

0.33

1) The ASTM D5470 test fixture was used.The recorded value includes interfacial thermal resistance.These values are provided for

reference only. Actual application performance is directly related to the surface roughness, flatness and pressure applied.

TYPICAL PROPERTIES OF SIL-PAD K-10