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TO220 Alumina thermal pad application for electronics part TO220 type
- Materials：Alumina (Al2O3)/ Zirconia(ZrO2) /Si3N4 /SiC ...etc
- Sizes：Custom according to the drawings
- Delivery times：2 -25 days(depends on the quantity)
- Precision：Ra 0.1um tolerance: 0.001mm... etc
- Features：Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation...
Alumina thermal pad application for electronics part TO220 type
Description:Thermal ceramic is base on Al2O3 as the main raw material, and rare metal oxide as the flux, which most into special ceramic sheet after over 1000°C high temperature.
The product is with high content of metal material component content is high, the structure is compact and it is with special performance, so it's called special ceramics.
This material is not easy oxidation, with high temperature resistance, high thermal conductivity, high melting point, high hardness, and excellent wear resistance etc feature.
Application:
Thermal ceramic is mainly used in high power equipment, IC MOS tube, IGBT thermal conduction and insulation, high frequency power supply, communications, mechanical equipment, strong current, high voltage and high temperature product.
Feature:
1. High hardness.
2. Extremely abrasive resistance performance.
3. Light weight.
4. Wide scope of application.
Product specifications:
Size: 0.635 mm*14 mm*20 mm
Other regular size and models:
TO-220, 1mm*14mm*20mm
TO-3 P, 1mm*20mm*25mm
TO-264, 1mm*22mm*28mm
TO-247, 1mm*17mm*22mm
Us can be based on customer drawings and requirements to provide non-standard ceramic accessories and provide related solutions.
Materials:
| Property | Alumina | Property | Zirconia |
| Bulk density(g/cm3) | 3.85-3.93 | The density (g/cm3) | 6.05 |
| Hardness(HRA≥) | 86 | Bibulous rate(%) | 0 |
| Bending strength（Mpa≥） | 300 | Thermal expansion coefficient(10-6 /k) | 10.5 |
| Maximum service temperature（℃） | 1500 | Young's modulus of elasticity(Gpa) | 210 |
| Linear expansion coefficient（×10-6/℃） | 7.15-7.67 | Poisson's ratio(/) | 0.3 |
| Dielectric constant（εr(20℃,1MHz)） | 9.21 | Hardness (MPa) | 1200 |
| Dielectric loss（tanδ×10-4,1MHz） | 2.5 | Bending strength (MPa) | 950 |
| Volume resistivity（Ω·cm(100℃)） | 9.2*1016 | The bending strength (MPa) | 210 |
| The compressive strength（Mpa≥） | 2500 | Compressive strength (MPa) | 2000 |
| Flexural strength（Mpa≥） | 200 | Fracture toughness(Mpa.m1/2) | 10 |
| Modulus of elasticity（Gpa） | 300 | Thermal conductivity (W/m.k) | 2 |
| Poisson's ratio | 0.2 | Specific resistivity(Ω.mm2/m) | ＞1015 |
| Thermal conductivity Coefficient(W/m·K(20℃)) | 20 | Maximum service temperature(℃) | 1350 |
| Dc breakdown strength | 43.7 | Acid and alkali corrosion resistance(/) | strength |
| Tensile seal strength(Mpa) | 104.4 |
|
Properties :
1. High Hardness wear resistance
2. High precision 3. Good mechanical strength 4. High temperature and chemical resistance 5. Electric insulation 6. Low thermal expansion 7. Smooth surface finish 8. Thermal Shock Resistance Material :
1. Alumina ceramic
2. Zirconia ceramic 3. Silicone carbide 4. Silicone nitride Lead-time: 20-30 days for mass production, 7-15 days for samples. |
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Dongguan Mingrui Ceramic Technology Co., Ltd.
TEL：+8618122974730
MB：+86 181 2297 4730 Tel：+86 746 3386888
Skype：+86 181 2297 4730
Email：admin@cerampart.com
ADD：No. 21, Chuangxing Road, Shangsha Second Industrial Zone, Chang'an Town, Dongguan City
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