Thermalsil III - Insulating Pads & Films

Thermally Conductive Silicone Rubber Insulators

RoHS Compliant

Composed of a silicone elastomer binder with a thermally conductive filler, Thermalsil™ III’s formula has been fully optimized for thermal conductivity. The electrically insulating pads are reinforced with finely woven glass cloth to resist tearing due to burrs and to enhance thermal resistance.

Thermalsil™ III eliminates the need for grease application and conforms to mounting surfaces under clamping pressure for optimum heat conduction.

Thermalsil™ III is also available with adhesive backing. Order by adding "AC" after the part number. For example: 53-03-2AC



Standard Configurations





Part Number A B C D Thickness Buy
53-03-2G 42.04
(1.655)
27.00
(1.063)
3.96
(0.156)
1.57
(0.062)
0.152
(0.006)
53-03-11G 41.81
(1.646)
28.58
(1.125)
3.96
(0.156)
2.36
(0.093)
0.152
(0.006)
53-03-12G 41.91
(1.650)
28.96
(1.140)
3.56
(0.140)
2.36
(0.093)
0.152
(0.006)
53-03-14G 39.70
(1.563)
26.67
(1.050)
3.56
(0.140)
2.36
(0.093)
0.152
(0.006)
53-03-15G 40.46
(1.593)
27.94
(1.100)
3.96
(0.140)
1.78
(0.070)
0.152
(0.006)
53-03-16G 43.18
(1.700)
30.15
(1.187)
3.96
(0.156)
1.60
(0.063)
0.152
(0.006)
53-03-16ACG
adhesive backing
43.18
(1.700)
30.15
(1.187)
3.96
(0.156)
1.60
(0.063)
0.152
(0.006)




Part Number A B C D E G Thickness Buy
53-02-95G 23.24
(0.915)
18.80
(0.740)
16.26
(0.640)
6.99
(0.275)
9.40
(0.370)
3.66
(0.144)
0.152
(0.006)
53-02-103G** 23.80
(0.937)
19.05
(0.750)
16.66
(0.656)
7.14
(0.281)
9.53
(0.375)
3.18
(0.125)
0.152
(0.006)
53-78-3ACG* **
adhesive backing
25.40
(1.000)
20.32
(0.800)




0.152
(0.006)

* This insulator is made especially for clip-mount heat sinks, thus requiring no mounting hole.
** These insulators may also be used for TO-3P and TO-247 devices.





Part Number A B C D Thickness Buy
53-77-2G 17.50
(0.687)
14.27
(0.562)
5.54
(0.218)
3.18
(0.125)
0.152
(0.006)
53-77-2ACG
adhesive backing
17.50
(0.687)
14.27
(0.562)
5.54
(0.218)
3.18
(0.125)
0.152
(0.006)
53-77-3G 17.50
(0.687)
41.27
(0.562)
4.70
(0.185)
2.36
(0.093)
0.152
(0.006)
53-77-4G 19.05
(0.750)
12.70
(0.500)
4.75
(0.187)
3.73
(0.147)
0.152
(0.006)
53-77-4ACG
adhesive backing
19.05
(0.750)
12.70
(0.500)
4.75
(0.187)
3.73
(0.147)
0.152
(0.006)
53-77-5G 20.32
(0.800)
15.24
(0.600)
5.54
(0.218)
2.79
(0.110)
0.152
(0.006)
53-77-5ACG
adhesive backing
20.32
(0.800)
15.24
(0.600)
5.54
(0.218)
2.79
(0.110)
0.152
(0.006)
53-77-9G 18.42
(0.725)
13.21
(0.520)
4.32
(0.170)
2.92
(0.115)
0.152
(0.006)
53-77-9ACG
adhesive backing
18.42
(0.725)
13.21
(0.520)
4.32
(0.170)
2.92
(0.115)
0.152
(0.006)
53-77-10G 20.96
(0.825)
22.99
(0.905)
5.33
(0.210)
3.68
(0.145)
0.152
(0.006)
53-77-10ACG
adhesive backing
20.96
(0.825)
22.99
(0.905)
5.33
(0.210)
3.68
(0.145)
0.152
(0.006)
53-77-11G 26.16
(1.030)
13.21
(0.520)
3.81
(0.150)
3.30
(0.130)
0.152
(0.006)
53-77-13ACG
adhesive backing
18.03
(0.710)
12.70
(0.500)
4.06
(0.160)
3.58
(0.141)
0.152
(0.006)
53-78-1ACG*
adhesive backing
22.10
(0.870)
15.70
(0.620)


0.152
(0.006)

* This insulator is made especially for clip-mount heat sinks, thus requiring no mounting hole.



Part Number A B Thickness Buy
53-02-10G 14.27
(0.562)
5.16
(0.203)
0.152
(0.006)
53-02-25G 20.62
(0.812)
6.73
(0.266)
0.152
(0.006)


 Bulk Thermalsil™ III


Part Number PCN Width Length Thickness
5300 1.500G N/A 38.10
(1.50)
100m (328ft) roll 0.152
(0.006)
5300AC 1.500G 38.10
(1.50)
100m (328ft) roll 0.152
(0.006)
5300 2.875G N/A 76.20
(3.00)
100m (328ft) roll 0.152
(0.006)
5300AC 2.875G N/A 76.20
(3.00)
100m (328ft) roll 0.152
(0.006)
5300 6.000G N/A 152.40
(6.00)
100m (328ft) roll 0.152
(0.006)
5300AC 6.000G N/A 152.40
(6.00)
100m (328ft) roll 0.152
(0.006)


Additional Product Information


PropertyTypical Value 25°CTest Method
Electrical
Dielectric Constant2.5@50 Hz
2.5@103 Hz
2.5@106 Hz
ASTM D150
Dielectric Breakdown Voltage26.3 x 103 volts/mm (667 volts/mil) ASTM D-149ASTM D149
Volume Resistivity5.7 x 1015 ohm-cmASTM D257
Dielectric Dissipation Factor.008@50 Hz
.004 @103 Hz
.004 @106 Hz
ASTM D150
Physical
Thickness.15 + .03/-.05mm
(0.006 + .001/-.002 in.)

ColorGray-Green
Tensile Strength6.1 x 107 Pa (8786 psil)
Hardness, Shore A87
Elongation2% or less
Thermal
Thermal Conductivity0.92 w/m °C
Flame ResistanceUL 94V-0 UL card #E-58126 (S)
Service Temperature-60°C to 180°C
(-76°F to 356°F)