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In-Sil-8 RoHS Compliant!
T-gardTM 500 RoHS Compliant!
Thermalsil™IIIRoHS Compliant!
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Thermal interface pads are thicker than double-sided
tapes, but can be provided without adhesive if removal of
the pad may be necessary. Pads can also be either
electrically conductive or isolating. Performance of the
interface pad is dependent on maintenance of correct,
constant mounting pressure.
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In-Sil-8
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Standard Pads
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When you need thermal conductance and electrical
isolation in one package, In-Sil-8 Pads offer you the
best of both. These silicone-based insulators come with
thermally conductive fillers to isolate up to 6000 volts
AC. In-Sil-8 pads withstand the rigors of assembly, harsh
environments, and aging under continuous use. You'll save
time with these cost-effective pads too: installation is
4 times faster than mica and grease, and they won't
contaminate solder baths. Order In-Sil-8 Pads with or
without pressure-sensitive adhesive, and in standard or
custom shapes.
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Ordering Information
In-Sil-8 pads have 12 digit ordering numbers. The 1st - 4th digits are listed in this chart, the 5th & 6th digits indicate standard configurations, and the last 6 digits are F00000.
The 5th and 6th digit ordering codes along with the part dimensions are listed in the code column on the standard pads page.
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Part Numbers
(With adhesive factory
applied to one side) |
1886
(1896) |
1887
(1897) |
1888
(1898) |
1889
(1899) |
| Color |
Grey |
Rust |
Grey |
Grey |
| Thickness (inch) |
0.006 |
0.009 |
0.007 |
0.009 |
| Thickness (mm) |
0.15 |
0.23 |
0.18 |
0.23 |
Thermal Res. (°C/W)
TO-3
TO-220
TO-218 |
0.40
1.40
0.93 |
0.21
0.63
0.49 |
0.33
1.25
0.77 |
0.50
1.50
1.16 |
| Breakdown Voltage |
6000 |
5000 |
4000 |
5000 |
| Dielectric Constant |
5.5 |
4.5 |
5.5 |
5.5 |
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T-gardTM 500
T-gardTM 500 is the recommended replacement for A-Dux |
T-gardTM500 is a medium thermal performance insulator pad
consisting of a ceramic filled high temperature silicone rubber
coated on electrical grade fiberglass.
T-gardTM 500 is designed for applications that require additional
thickness to prevent electrical shorts from stamped aluminum
heatsinks used in switching mode power supplies (SMPS) and
debris from aluminum castings used in automotive motor controls.
T-gardTM 500 is used in applications that require interface of
2.5ºC/watt or higher on a TO-220 mounted @ 50 psi pressure.
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Electrical Properties
| Properties |
Test Method |
Metric Values |
Imperial Values |
| Dielectric with stand voltage |
ASTM D149 |
4,500 volts AC |
4,500 volts AC |
| Dielectric Breakdown voltage |
ASTM D149 |
>6,000 volts AC |
>6,000 volts AC |
| Volume Resistivity |
ASTM D257 |
>1012 ohm-cm |
>1012 ohm-in |
| Dielectric Constant @ 1 MHz |
ASTM D257 |
3.3 |
3.3 |
| Electrical RTI Temperature rating |
UL 746D |
150ºC |
302ºF |
Total Thermal Resistance
| Pressure, psi (kPa) | Units | 10 (69) | 25 (172) | 50 (345) |
100 (689) | 200 (1379) | 400 (2758) |
| Modified ASTM D5470 | ºC-in2/watt | 0.6 | 0.55 | 0.45 | 0.40 | 0.35 | 0.35 |
| Modified ASTM D5470 | ºC-cm2/watt | 3.9 | 3.2 | 2.9 | 2.6 | 2.3 | 2.3 |
| TO-220 | ºC/watt | 2.9 | 2.6 | 2.4 | 2.2 | 2.0 | 2.0
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Mechanical Properties
| Properties | Test Method | Metric Values | Imperial Values |
| Thickness | | 0.23 mm | 0.009 inch |
| Hardness | ASTM D2240 | 85 Shore A | 85 Shore A |
| Tensile Strength | ASTM D412 | 1.3 kpsi | 9 mPa |
| Elongation @45º to Warp/Fill | ASTM D412 | 20% | 20% |
| Elongation along width or length | ASTM D412 | 5% | 5% |
| Mechanical RTI Temperature rating | UL 746D | 150ºC | 302ºF |
| Color | | Dark Pink | Dark Pink |
| UL Flammability Rating | UL 94 | V-0 | V-0 |
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Products / Interface Materials / Pads