COH Series (Sheet-type Thermal GEL)

COH Series (Sheet-type Thermal GEL)
COH Series are very soft, tacky sheet-type GEL, facilitating excellent heat dissipation results.

Physical Characteristics

Item Sheet-type Thermal GEL Lambda GEL COH Series Remark
COH-1002 COH-2003 COH-4000 COH-4000LVC COH-6000LVC
Thermal
conductivity
(W/m · K)
Our tests 1.8 3.5 6.5 6.5 1.8 Taica.std.
Hot Wire
Method*1
1.0 1.4 2.1 2.1 1.0 JIS R 2616
Appearance White Orange Gray Gray Blue -
Specific gravity 1.7 2.1 2.8 2.9 1.7 JIS K 6249
Hardness(Shore 00) 30 48 57 55 16 ASTM D2240
Specific volume
resistance ratio
(Ω · cm)
7.7×1013 1.0×1012 5.7×1012 7.09×1012 8.70×1013 JIS K 6249
Tensile strength(Mpa) 0.17 0.23 0.12 0.35 0.15 JIS K 6249
Elongation(%) 164 115 220 68 350 JIS K 6249
Compression set(%) 69 78 92 72 49 JIS K 6249
Dielectric
constant
〈50Hz〉 7.3 6.1 8.6 5.6 5.2 JIS K 6249
〈1kHz〉 4.8 5.2 7.6 5.0 3.7 JIS K 6249
〈1MHz〉 3.9 4.5 7.4 5.5 3.4 JIS K 6249
Dielectric
dissipation
factor
〈50Hz〉 0.290 0.106 0.198 0.006 0.115 JIS K 6249
〈1kHz〉 0.153 0.067 0.082 0.002 0.057 JIS K 6249
〈1MHz〉 0.013 0.017 0.054 0.0004 0.0050 JIS K 6249
Dielectric breakdown
voltage(kV/mm)
18.0 15.7 7.2 12.5 12.5 JIS K 6249
Low
molecular
weight
siloxane
level
ΣD4 -
10(ppm)
Solvent
extraction
method
Less than
600
Less than
700
Less than
300
Less than
13
Less than
60
Solvent
extraction
method
Head
space
Method*2
Less than
5
Less than
1
Less than
1
- Less than
1
-
Flame retardance V-1(0.5mmt
V-0(1.0-3.0mmt
V-0(0.5-3.0mmt V-0(0.5-3.0mmt V-0(0.5-3.0mmt V-1(0.5mmt
V-0(1.0-5.0mmt
UL94
RoHS controlled
substances*3
Not detected Not detected Not detected Not detected Not detected -
Temperature range(℃)*4 -40 ~ +150 -40 ~ +120 -40 ~ +200 -40 ~ +150 -40 ~ +150 -
   
*1
*2
*3
*4
Hot Wire Method : Using the QTM - 500 Quick Thermal Conductivity Meter, from Kyoto Electronics Manufacturing Co., LTD.
Head Space Method : at 70℃.
RoHS controlled substances : Assayed by SGS Far East Ltd.
Temperature range :
These temperature ranges are not the guaranteed values by Taica Corporation.
The applicability should be determined respectively through the tests under actual conditions of each usage.

The flow of heat

Applications

Directions

· Slowly peel off one side of the protective film of Lambda GEL.
· Carefully place the Lambda GEL sheet on the heat source or heat sink without trapping air.

· Peel the remaining layer from Lambda GEL with no air trapped in between the sheet and heat dissipating device or heat generating device.

Delivery format

Basic specifications
Sheet size 400mm×400mm (Standard size)
Sheet thickness 0.5 , 1.0 , 2.0 , 3.0mm
(Up to 5mm in 300 x 300mm for COH-6000LVC)
NOTE
  1. · Silicone oil may bleed under certain usage condition.
  2. · Low molecular siloxane is included in this product basically composed of silicone.

    To the best of our knowledge , the information and statements on this literature are believed to be true and reliable ;however, the PRODUCTS described herein are sold WITHOUT ANY GUARANTEE OR WARRANTY INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSES since the application and conditions of each use vary and change, and are beyond the control of manufacture and seller(s).The customers and users of the PRODUCTS shall assume the responsibility for determining the suitability of the PRODUCTS based on their tests and for whatever risks and liability associated with the use of the PRODUCTS. NEITHER MANUFACTURER OR SELLER(S) SHALL BE LIABLE EITHER IN TORT OR CONTRACT OR ANY OTHER CAUSE FOR ANY KIND OF LOSS OF PROFITS OR DAMAGE , INCIDENTAL, DIRECT, OR CONSEQUENTIAL ARISING OUT OF OR IN CONNECTION WITH THE USE OF OR THE INABILITY TO USE THE PRODUCTS.

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*Taica® , αGEL® , αPLA® , αGEL YOYO® , CUBIC® , and CUBIC PRINTING® are trademarks of Taica Corporation,
registered in Japan,the United States and/or other countries.