SARCON® GHR

High Heat conductivity Glass cloth Reinforcement.
Features

・ SARCON® GHR is a composite of Heat Conductive Silicone Rubber and Fiberglass.
・ SARCON® GHR has excellent mechanical and physical characteristics.
・ Usable Over a Wide Temperture Range. (–60°C ~ 182°C / –76°F ~ +360°F)
・ Complies with UL Standards. (UL 94. UL 746)
・ Sarcon® GHR is available with a PSA (Pressure Sensitive Adhesive) mounting option.

Typical Product Properties
Item Unit SARCON 15GHR SARCON 20GHR SARCON 30GHR
Color Brown
Thickness mm 0.15+0.02/–0.04 0.20+0.02/–0.04 0.30+0.10/–0
Hardness ASTM D2240(A) 92 92 95
Tensile Strength KN/m 8
Elongation % 2 or less
Volume Resistivity MΩ/m 1 x 107 1 x 107 1 x 107
Breakdown Voltage KV/AC 3 6 9
Withstand Voltage KV/minute 2 4 8
Dielectric Constant 50Hz
103Hz
106Hz
3.0
3.0
3.0
3.3
3.3
3.3
3.9
3.9
3.9
Dielectric Dissipation Factor 50Hz
103Hz
106Hz
0.015
0.005
0.003
0.009
0.003
0.004
0.006
0.003
0.004
Thermal Impedance FTM P-3010 0.55 ˚C inch2/watt 0.57 ˚C inch2/watt 0.61 ˚C inch2/watt
Thermal Impedance AD Type FTM P-3010 0.63 ˚C inch2/watt 0.66 ˚C inch2/watt 0.72 ˚C inch2/watt
Flame Retardant UL–94 V – 0 V – 0 V – 0
Note:) 1. Test method is based on JIS K–6249.
2. Breakdown Voltage : AC 60Hz
Withstand Voltage : AC 60Hz
3. Thermal Impedance : Fujipoly Test Method FTM P-3010 which giues ASTM D5470 Equivalent value.
4. Flame Retardant : UL–94
5. ensile Strength / Elongation : Test methods according to ASTM D1458 (JIS C 2367),
double silicone rubber / Glass cloth
test method.

 

Test Condition : 150˚C (300˚F) x 1,000hrs (42days)

SARCON® 15GHR
Properties Unit Before test After 100hrs After 500hrs After 1,000hrs
Hardness ASTM D2240(A) 92 92 93 92
Tensile Strength (ASTM D1458) KN/m 8.0 8.8 9.2 7.8
Elongation (ASTM D1458) % 2 or less 2 or less 2 or less 2 or less
Volume Resistivity MΩ . m 1.1 x 107 7.8 x 107 6.5 x 107 1.8 x 108
Breakdown Voltage KV/AC 3.0 3.5 3.0 3.0
Dielectric Constant 50Hz
103Hz
106Hz
3.0
3.0
3.0
3.3
3.3
3.3
2.6
2.6
2.6
2.5
2.5
2.5
Dielectric Dissipation Factor 50Hz
103Hz
106Hz
0.015
0.005
0.003
0.004
0.002
0.003
0.005
0.002
0.003
0.004
0.002
0.003
SARCON® 20GHR
Properties Unit Before test After 100hrs After 500hrs After 1,000hrs
Hardness ASTM D2240(A) 92 92 92 93
Tensile Strength (ASTM D1458) KN/m 8.5 8.5 8.8 9.6
Elongation (ASTM D1458) % 2 or less 2 or less 2 or less 2 or less
Volume Resistivity MΩ . m 1.3 x 107 6.8 x 107 1.3 x 108 7.3 x 107
Breakdown Voltage KV/AC 5.5 5.4 5.3 5.0
Dielectric Constant 50Hz
103Hz
106Hz
3.3
3.3
3.3
3.2
3.2
3.2
2.7
2.6
2.6
2.9
2.9
2.9
Dielectric Dissipation Factor 50Hz
103Hz
106Hz
0.009
0.003
0.004
0.004
0.002
0.003
0.003
0.002
0.004
0.004
0.002
0.003
SARCON® 30GHR
Properties Unit Before test After 100hrs After 500hrs After 1,000hrs
Hardness ASTM D2240(A) 95 93 94 96
Tensile Strength (ASTM D1458) KN/m 8.6 8.6 8.8 9.5
Elongation (ASTM D1458) % 2 or less 2 or less 2 or less 2 or less
Volume Resistivity MΩ . m 3.3 x 107 7.8 x 107 9.1 x 107 3.9 x 107
Breakdown Voltage KV/AC 7.0 7.3 7.3 7.0
Dielectric Constant 50Hz
103Hz
106Hz
3.9
3.9
3.9
3.8
3.8
3.8
3.4
3.4
3.4
3.1
3.1
3.1
Dielectric Dissipation Factor 50Hz
103Hz
106Hz
0.006
0.003
0.004
0.004
0.002
0.003
0.003
0.002
0.004
0.004
0.002
0.004

Test Condition : 200˚C (390˚F) x 1,000hrs (42days)

SARCON® 15 GHR
Properties Unit Before test After 100hrs After 500hrs After 1,000hrs
Hardness ASTM D2240(A) 92 93 93 94
Tensile Strength (ASTM D1458) KN/m 8.0 6.5 7.0 5.9
Elongation (ASTM D1458) % 2 or less 2 or less 2 or less 2 or less
Volume Resistivity MΩ . m 1.1 x 107 2.6 x 108 1.8 x 108 1.8 x 108
Breakdown Voltage KV/AC 3.0 3.5 3.0 2.5
Dielectric Constant 50Hz
103Hz
106Hz
3.0
3.0
3.0
2.5
2.5
2.5
2.1
2.1
2.2
2.4
2.4
2.4
Dielectric Dissipation Factor 50Hz
103Hz
106Hz
0.015
0.005
0.003
0.001
0.001
0.003
0.001
0.001
0.002
0.002
0.001
0.003
SARCON® 20 GHR
Properties Unit Before test After 100hrs After 500hrs After 1,000hrs
Hardness ASTM D2240(A) 92 92 92 92
Tensile Strength (ASTM D1458) KN/m 8.5 9.3 7.9 8.5
Elongation (ASTM D1458) % 2 or less 2 or less 2 or less 2 or less
Volume Resistivity MΩ . m 1.3 x 107 1.2 x 108 1.1 x 108 1.8 x 108
Breakdown Voltage KV/AC 5.5 5.0 4.7 4.0
Dielectric Constant 50Hz
103Hz
106Hz
3.3
3.3
3.3
3.1
3.1
3.1
2.6
2.7
2.6
2.9
2.9
2.9
Dielectric Dissipation Factor 50Hz
103Hz
106Hz
0.009
0.003
0.004
0.002
0.002
0.003
0.001
0.001
0.002
0.002
0.001
0.003
SARCON® 30 GHR
Properties Unit Before test After 100hrs After 500hrs After 1,000hrs
Hardness ASTM D2240(A) 95 96 95 96
Tensile Strength (ASTM D1458) KN/m 8.6 8.6 8.2 7.2
Elongation (ASTM D1458) % 2 or less 2 or less 2 or less 2 or less
Volume Resistivity MΩ . m 3.3 x 107 3.9 x 107 1.0 x 108 1.0 x 108
Breakdown Voltage KV/AC 7.0 6.0 6.1 5.7
Dielectric Constant 50Hz
103Hz
106Hz
3.9
3.9
3.9
3.8
3.7
3.8
3.2
3.2
3.2
3.5
3.5
3.5
Dielectric Dissipation Factor 50Hz
103Hz
106Hz
0.006
0.003
0.004
0.002
0.001
0.003
0.002
0.001
0.003
0.002
0.001
0.003

Test Condition : 60˚C (140˚F) x 500hrs (21days)

SARCON® 15 GHR
Properties Unit Before test After 250hrs After 500hrs
Hardness ASTM D2240(A) 92 92 92
Volume Resistivity MΩ . m 1.1 x 107 7.5 x 105 3.2 x 104
Breakdown Voltage KV/AC 3.0 2.5 2.5
Dielectric Constant 50Hz
103Hz
106Hz
3.0
3.0
3.0


3.5
3.3
3.3
Dielectric Dissipation Factor 50Hz
103 Hz
106 Hz
0.015
0.005
0.003


0.045
0.010
0.007
SARCON® 20 GHR
Properties Unit Before test After 250hrs After 500hrs
Hardness ASTM D2240(A) 92 92 92
Volume Resistivity MΩ . m 1.3 x 107 3.3 x 103 2.0 x 102
Breakdown Voltage KV/AC 5.5 4.0 4.0
Dielectric Constant 50Hz
103Hz
106Hz
3.3
3.3
3.3


4.4
4.1
4.0
Dielectric Dissipation Factor 50Hz
103 Hz
106 Hz
0.009
0.003
0.004


0.061
0.026
0.014
SARCON® 30 GHR
Properties Unit Before test After 250hrs After 500hrs
Hardness ASTM D2240(A) 95 95 95
Volume Resistivity MΩ . m 3.3 x 107 2.4 x 105 3.9 x 103
Breakdown Voltage KV/AC 7.0 7.0 7.0
Dielectric Constant 50Hz
103 Hz
106 Hz
3.9
3.9
3.9


5.0
4.7
4.5
Dielectric Dissipation Factor 50Hz
103 Hz
106 Hz
0.006
0.003
0.004


0.069
0.020
0.008

Clamping Torque VS Thermal Impedance (°C/W ).

Clamping Torque 3kg-cm 5kg-cm 7kg-cm
Product Name Thickness (mm)
15GHR 0.14 0.58 0.55 0.53
20GHR 0.21 0.61 0.57 0.54
30GHR 0.33 0.67 0.61 0.59
15GHR - AD 0.18   0.63  
20GHR - AD 0.24   0.66  
30GHR - AD 0.38   0.72  

Chemical Resistance. (Chemical Name : HCFC AK–225 (Substitutive Freon) )

Product Name Insulative Resistivity(MΩ·m) Breakdown Voltage (KV) Thermal Impedance (˚C/W)
before soak after 24hrs before soak after 24hrs before soak after 24hrs
15GHR 1.6 x 107 2.5 x 106 3 2 0.55 0.56
20GHR 3.2 x 107 1.2 x 107 6 4.5 0.57 0.61
30GHR 2.5 x 107 1.1 x 107 9 8.3 0.61 0.62

Test Method for Thermal Resistance (Impedance) .

Fujipoly test method FTM P-3010 which gives ASTM D5470 equivalent value.

1) Punched-out specimen in TO-3 package is located between a transistor and heat sink (Fig.1). and secured with screws the position (A),using a screwdriver.

2) DC 10V, 2A (20W) current is applied to the transistor.

3) After three minutes, the thermal resistance is calculated based on the following formula (B).

Statement of Lieu of Warranty

• Properties of the products may be revised due to some changes for improving performance.
• Properties values in this document are not specification or guaranteed.
• This product is made of silicone, and silicone oil may exude from the product.
• This product is made of silicone, and low molecular siloxane may vaporize depending on operating conditions.
• The product is designed, developed, and manufactured for general industrial use only. Never use for medical, surgical, and/or relating purposes. Never use for the purpose of implantation and/or other purposes by which apart of or whole
product remains in human body.
• Before using, a safety must be evaluated and verified by the purchaser.
• Contents described in the document do not guarantee the performances and qualities required for the purchaser’s specific purposes. The purchaser is responsible for pre-testing the product under the purchaser’s specific.
• Statements concerning possible or suggested uses made herein may not be relied upon, or be constructed, as a guaranty of no patent infringement.

Handling Notes

• It is recommended to use the material in up to 30% of compression ratio. Using the material beyond the recommended compression rate may result in excessive silicone oil exudation.
• It is recommended to compress the material with the equal ratio on the whole surface. Partial excessive stress may also result in excessive silicone oil exudation.