|
Silicone
Thermally Conductive Silicone
Thermally conductive silicone
products enhance the durability, safety, and reliability of electrical
and electronic instruments and equipment.
The issue of excessive heat has increased as electrical
and electronic communication equipment has
downsized. It has become critically important to solve these
heat problems in order to enhance the reliability of the instruments
and equipment.
| Silicone
Rubber Composite Products |
|
Our TC series products have excellent insulation. These products are
composite products of silicone rubber combined with fillers to enhance
heat dissipation. These materials are priable and adhesive, and are
best suited for use as a sealant to heat-generating components and
heat sinks. They exhibit superior thermal conductivity.
Features
Excellent thermal conductivity
Excellent flame retardant properties
Excellent electrical properties
Priability and adhesive properties ensure excellent heat dissipation
Easy adherence and removal result in excellent workability
Capable of performing close tolerances for complex shaped surfaces
Applications
Thermal conductivity and electrical insulation for power transistors
and power modules
Thermal conductivity, electrical insulation and vibration damping
of
semiconductor devices such as CPUs and electrical
components
Heat dissipaters, electrical insulators and thermal conductivity
for thermal fuses
and temperature sensors
Handling Precautions
TC series products should be stored in a dry and dark place.
Avoid contact with solvents and oils as they will deteriorate
the properties of the products.
For better results, the substrate surface should be cleaned and
dried to remove any dirt,
stains, moisture or oils before applications.
|
Typical Properties |
| Type |
High
Thermal Conductive Silicone Rubber Sheets |
Caps |
|
Item / Products
|
TC-A
|
TC-CG
|
TC-EG |
TC-C-CP |
TC-A-CP |
|
Color
|
Dark
blue |
Light
reddish brown |
Light
blue |
Light
reddish brown |
Dark
blue |
|
Thickness mm
|
0.45
|
0.45
|
0.45
|
0.45
|
0.45 |
|
Specific Gravity
at 23°C
|
2.2
|
2.5
|
3.1
|
2.6
|
2.2 |
|
Breakdown Voltage
KV* {kV/mm}
|
15 {15} |
10 {10} |
8 {8} |
15
{15} |
15
{15} |
|
Dielectric Strength
kV
|
9
|
5
|
6
|
13
|
9 |
|
Volume Resistivity
T - m* { - cm} *
|
1.0
{1.0x10 14} |
1.2
{1.2x10 14} |
19.0
{190x10 15} |
3.2
{3.2x10 14} |
1.0
{1.0x10 14} |
|
Thermal Conductivity
W/m - °C
{cal/cm.sec.°C }
|
1.1
{2.6x10 -3} |
1.9
{4.5x10 -3} |
4.5
{1.06x10 -2} |
1.5
{3.6x10 -3} |
1.1
{2.6x10 -3} |
|
*SI unit { } conventional unit *1 Tested by durometer
type A (not specified values)
| Type |
Soft
Type of High Thermal Conductive Silicone Rubber Sheets
|
|
Item / Products
|
TC-TL |
TC-TKC
|
TC-TZ |
TC-THB |
TC-TX |
|
Color
|
Dark
gray
|
Light
reddish brown, dark gray |
Brown |
White
brown |
Light
blue gray |
|
Thickness mm
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0 |
|
Specific Gravity
at 23°C
|
1.5
|
2.3
|
2.7
|
2.7
|
3.0 |
|
Hardness Asker C
|
15
|
25
|
17
|
17 |
20 |
|
Breakdown Voltage
kV* {kV/mm}
|
23
{23} |
20
{20} |
6
{6} |
26
{26} |
22
{22} |
|
Dielectric Strength
kV
|
8
|
14 |
5 |
10 |
10 |
|
Volume Resistivity T - m*{ - cm} *
|
1.4
{1.4x10 14} |
0.16
{1.6x10 13} |
0.076
{7.6x10 12} |
0.05
{5.0x10 12} |
0.059
{5.9x10 12} |
|
Thermal Conductivity W/m - °C {cal/cm.sec.°C}
|
0.63
{1.5x10 -3} |
1.1
{2.6x10 -3} |
1.7
{4.1x10 -3} |
2.6
{6.1x10 -3} |
5.0
{11.9x10 -3} |
|
*SI unit { } conventional unit (not specified values)
Hardness (Asker C): Measured with 2 pieces soft type of high thermal
conductive silicone rubber sheets
Thermally conductive fluid compounds are grease-like products containing
silicone fluids as a base oil, and alumina powder. Silicone fluid
compounds show excellent stability against thermal oxidation, in addition
to excellent electrical properties over a wide temperature range.
Features
Excellent thermal conductivity
Grease-like products can be screen printed
These products show the following characteristics due to their
excellent heat and
cold resistance:
High dropping point
Less oil separation and lower volatile matter
Good stability against thermal oxidation
Good stability against consistency changes
No solidification at temperatures as low as -50°
Applications
Good performance is obtained when these materials are used for
thermal conductivity
of semiconductors devices such as power transistors,
ICs, and CPUs.
Thermal conductivity of resin-encapsulated power transistors
These materials are best suited for potting of transistors, rectifiers,
thyristors, etc.
and heat sink.
Sealing the measuring parts of thermistors, thermocouples, etc.
Potting of heat-generating components in devices such as heaters,
and heat dissipaters.
Usage
1. For best results, the substrate surface should
be cleaned and dried before applications.
2. Greases and fluid compounds should be stirred thoroughly with a
spatula before use.
Handling Precautions
Wear protectors such as gloves.
If grease adheres to the skin, wipe well with dry cloth, then
wash with soap and
running water.
Greases and fluid compounds must be stored in a dark place at
room
temperature (1 to 30°C).
Read the Manufacturer's Safety Data Sheet (MSDS) before use.
|
Typical Properties |
|
Item \ Products
|
KS609 |
KS612
|
KS613 |
G747 |
G765
|
G750 |
G751 |
|
Color and Consistency
|
White,
greasy |
White,
greasy |
White,
greasy |
White,
greasy |
Gray,
greasy |
Gray,
greasy |
Gray,
greasy |
|
Penetration (worked)
|
328
|
321 |
360 |
346 |
286*2
|
300*2 |
242*2 |
|
Specific Gravity
at 23°C
|
2.53
|
2.44 |
2.36 |
2.81 |
2.80 |
2.80 |
2.50 |
|
Thermal Conductivity
W/m - °C {cal/cm.sec.°C }
|
0.80
{195x10 -3} |
0.71
{1.7x10 -3} |
0.96
{2.3x10 -3} |
1.09
{2.6x10 -3} |
2.89
{6.9x10 -3} |
3.5
{8.4x110 -3} |
4.51
{1.08x10 -2} |
|
Volume Resistivity
T - m*{ - cm} *
|
2.2
{2.2x10 14} |
2.8
{2.8x10 14} |
0.5
{5.2x10 13} |
2.5
{2.5x10 14} |
0.1
{9.5x10 12} |
0.1
{9.5x10 12} |
0.008
{7.5x10 11} |
|
Breakdown Voltage
kV* {kV/mm}
|
3.5
{3.5} |
3.2
{3.2} |
9.9
{9.9} |
3.7
{3.7} |
4.5
{4.5} |
4.5
{4.5} |
- |
|
Temperature Range
°C
|
-55
˜+200 |
-50˜+300 |
-50˜+300 |
-50˜+300 |
-50
˜+170 |
-50˜+170 |
-50˜+170 |
|
Note
|
for
general - purpose |
for
heatproof |
for
heatproof, for potting of thermistors |
for
resin-encap-
sulated power transistors |
For
CPU applications, for resin-encap-
sulated power transistors |
|
|
|
*SI unit { } conventional unit *1 measured by heat
ray method * 2 not worked (not specified values)
|
Condensation-Curing RTV Silicone
Rubber |
|
Condensation-curing silicone rubber is one component type adhesives
compounded with a special filler to enhance thermal conductivity.
These materials are in paste form before curing. When exposed to the
air, they start to cure while generating a small amount of cure byproduct.
These adhesive/sealants adhere to many substrates and cure to become
elastic rubber with excellent thermal conductivity.
Features
Excellent thermal conductivity
Easy to handle
Excellent adhesion
Superior electrical properties
These materials exhibit outstanding heat and cold resistance,
and show stable
properties in a wide temperature range from -40°C
to 180°C .
Applications
Sealing and thermal conductivity of electrical and electronic
components
Sealing of thermocouples
Sealing of heat exchangers
Better performance can be obtained when these materials are used
as a heat
bonding
material for the joints
Usage
1. Cleaning the substrate surface
For better results, the substrate surface
should be cleaned with sandpaper or solvents
(toluene, xylene, etc.) to remove any rusts,
oils, or other contamination. Use solvents
to clean the substrate with care, because some
solvents may attach to the surface
2. Handling
Simply squeeze from the tube or cartridge
the quantity needed. The work should be
performed as quickly as possible, prior to skin-over
3. Storage
Remove the nozzle of the tubes after use
and seal tightly. Wipe up the residue within
the nozzle with a solvent
Handling Precautions
Wear protectors such as gloves or goggles when in use. Allow adequate
ventilation
when in use.
If silicone rubber adheres to hands, wipe well with dry cloth,
then wash with soap
and running water.
One-component RTV silicone rubber starts curing when exposed to
the air, the curing
naturally occurring first on the surface. The
full cure will depend on the thickness of the
rubber, the air temperature, and the humidity.
Handle the condensation type products with care, because some
of these materials
may cause copper corrosion due to the reaction
of oxime.
One-component RTV silicone rubber should be sealed tightly and
stored in a dark
place (1 to 30°C).
Read the Manufacturer's Safety Data Sheet (MSDS) before use.
|
Addition-Curing Liquid Silicone
Rubber / Gel |
|
Shin-Etsu silicone rubber/gel products, compounded with special filler
to enhance the properties of thermal conductivity, are heat-curable
addition type and can thus be uniformly cured in a short period of
time regardless of the thickness of the rubber. They exhibit excellent
thermal conductivity and are best suited as potting materials to protected
wire and components from vibration and heat deformation.
Features
Excellent thermal conductivity
Excellent electrical properties
Superior heat and cold resistance
Deep section curing is possible
Excellent resistance to chemicals and medicine
Superior flame retardant properties
Applications
Sealant for heat sinks and pipes
Sealing materials for thermal conductive circuits
Protection and thermally conductive potting materials for electrical
and
electronic components
Molding material for thermally conductive parts and components
Usage
For both one-component type and two-component types; for better
results,
the substrate surface should be cleaned with
sandpaper or solvents
(toluene, xylene, etc.) to remove any rust, oils,
or other contamination.
One-component type;
1. Handling: Apply the material to the substrates
2. Curing and adhesion: Heat cure as outlined
in the table below.
Two-component type;
1. Since sedimentation may occur at the
bottom of the container, the product should
be stirred with a spatula
before use.
2. Weigh respectively the silicone rubber/gel
compound and curing agent.
3. Thoroughly mix the compound and curing
agent until the colors are uniform.
4. After mixing, de-gas under vacuum.
5. Pour the fluid into the place to be sealed
and heat to recommended cure temperature.
Handling Precautions
Wear protectors such as goggles, gloves when in use.
The addition-cure type silicone may show signs of cure inhibition
when in contact with
such substances containing sulfur, phosphorus,
nitrogen compounds, water, organic
metallic salt, etc. High humidity may also
cause insufficient cure and adhesion. Store at
low humidity.
Containers of one-component type products should be sealed tightly
and stored in a
cool place (below 10°C), and two-component
products should be sealed and stored in a
dark place at temperatures range of 1 to
30°C.
Read the Manufacturer's Safety Data Sheet (MSDS) before use.
Quality, Storage, and Handling
Avoid exposing the products to direct sunlight
Avoid contact with residual solvents or oils
as they will deteriorate the properties
of the product
Clean the surface of the product before use
to remove any dirt, dust, stains,
moisture or oils
Prior to using the product with grease, test
a sample with a small amount to
determine compatibility
|
TC Series Product Grades and
Forms |
| Grades
/ Forms |
Cut
Sheet Types |
Molded
Types |
Features |
| TC-A |
Available |
Cap |
Tube |
General
use
Noncombustible (UL 94 V-0 Listed) |
| TC-CG |
Available |
Not
available |
High
thermal conduction
Noncombustible (UL 94 V-0 listed)
Excellent tear strength resulting from glass cloth
reinforcement |
| TC-BG |
Available |
Not
available |
Very
low thermal resistance
High heat dissipation from boron nitride compounding
Noncombustible (UL 94 V-0 listed)
Excellent tear strength resulting from glass cloth
reinforcement |
| TC-CG-AV |
Available |
Not
available |
High
thermal conduction
Adhesive applied
Noncombustible (UL 94 V-0 listed)
Excellent tear strength resulting from glass cloth
reinforcement |
|
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