The alumina ceramic washer for IC package is sintered from high-purity alumina powder after shaping. It boasts excellent insulation and thermal conductivity, high hardness, exceptional wear resistance, and resilience to high temperatures, acids, and alkalis. Primarily used for heat transfer and electrical isolation between power devices and heat sinks, it ensures superior thermal conductivity and insulation while enduring harsh environments containing high temperatures, corrosive substances, or dust. This significantly enhances the safety and stability of equipment operation.
Brand:
ATCERAItem NO.:
AT-TO220A-001Materials
AluminaShapes
Mechanical PartsApplications
Semiconductor
1. The alumina ceramic washer exhibits significant hardness, exceptional wear resistance, and prolonged service life.
2. It is non-conductive, providing superior insulation, high breakdown voltage tolerance, and excellent thermal conductivity. This ensures efficient heat transfer while preventing electrical leakage or short-circuit failures in equipment.
3. Resistant to high temperatures and corrosion, it adapts to demanding working environments.
The alumina ceramic washer for IC package is suitable for various package types such as TO220 series, TO247, TO218, DO4A-4B, and DO5A-5B, fulfilling heat transfer and electrical insulation requirements.
We are committed to delivering optimal alumina ceramic washers tailored to your exact specifications. Our dedicated team ensures meticulous adherence to your instructions, striving to exceed customer expectations. Additionally, we offer the flexibility of custom sizes to accommodate your unique requirements.
Please provide drawings and parameter specifications if customization requirements needed.
| Alumina Ceramic Washer for TO220A-F | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| TO220A | AT-TO220A-001 | 1.5mm | 3.8mm | 16.5x12.7x1.5mm |
| TO220A | AT-TO220A-002 | 1mm | 3.8mm | 16.5x12.7x1mm |
| TO220B | AT-TO220B-003 | 3mm | 3.7mm | 17.3x12.3x3mm |
| TO220C | AT-TO220C-004 | 1.5mm | 3.1mm | 18x12x1.5mm |
| TO220C | AT-TO220C-005 | 1.5mm | 4mm | 18x12x1.5mm |
| TO220C | AT-TO220C-006 | 1.5mm | 3.6mm | 18x12x1.5mm |
| TO220C | AT-TO220C-007 | 1.5mm | 3.1mm | 18x12x1.5mm |
| TO220C | AT-TO220C-008 | 3mm | / | 18x12x3mm |
| TO220C | AT-TO220C-009 | 3mm | 3.1mm | 18x12x3mm |
| TO220D | AT-TO220D-010 | 1.5mm | 3.2mm | 18x14x1.5mm |
| TO220D | AT-TO220D-011 | 3mm | / | 18x14x3mm |
| TO220D | AT-TO220D-012 | 3mm | 3.2mm | 18x14x3mm |
| TO220D | AT-TO220D-013 | 4.5mm | 3.2mm | 18x14x4.5mm |
| TO220D | AT-TO220D-014 | 4.5mm | 3.5mm | 18x14x4.5mm |
| TO220D | AT-TO220D-015 | 0.635mm | 3.8mm | 18.5*12*0.635mm |
| TO220D | AT-TO220D-016 | 1mm | 3.8mm | 18.5*12*1.0mm |
| TO220E | AT-TO220E-017 | 0.635mm | 3.8mm | 19*14*0.635 |
| TO220E | AT-TO220E-018 | 1mm | 3.8mm | 19*12*1.0mm |
| TO220E | AT-TO220E-019 | 2mm | 3.5mm | 19*14*2.0mm |
| TO220E | AT-TO220E-020 | 1.6mm | 3.7mm | 19.3x14x1.6mm |
| TO220E | AT-TO220E-021 | 2.5mm | 3.7mm | 19.3x14x2.5mm |
| TO220E | AT-TO220E-022 | 2mm | 3.7mm | 19.3x14x2mm |
| TO220E | AT-TO220E-023 | 3mm | 3.7mm | 19.3x14x3mm |
| TO220E | AT-TO220E-024 | 4mm | 3.7mm | 19.3x14x4mm |
| TO220F | AT-TO220F-025 | 0.6mm | 3.2mm | 20*14*0.6mm |
| TO220F | AT-TO220F-026 | 1 | 3.2mm | 20*14*1mm |
| TO220F | AT-TO220F-027 | 0.635mm | 3.8mm | 22*17*0.635mm |
| TO220F | AT-TO220F-028 | 1mm | 3.8mm | 22*17*1.0mm |
| TO220F | AT-TO220F-029 | 1.5mm | 3.6mm | 23x20x1.5mm |
| TO220F | AT-TO220F-030 | 1mm | / | 23x20x1mm |
| TO220F | AT-TO220F-031 | 1mm | 3.6mm | 23x20x1mm |
| TO220F | AT-TO220F-032 | 2mm | / | 23x20x2mm |
| TO220F | AT-TO220F-033 | 2mm | 3.6mm | 20x20x2mm |
| TO220F | AT-TO220F-034 | 3mm | / | 23x20x3mm |
| TO220F | AT-TO220F-035 | 4mm | / | 23x20x4 mm |
| TO220F | AT-TO220F-036 | 4mm | 3.6mm | 23x20x4mm |
| TO220F | AT-TO220F-037 | 0.635mm | 4 | 25*20*0.635mm |
| TO220F | AT-TO220F-038 | 1mm | 4 | 25*20*1mm |
| TO220F | AT-TO220F-039 | 2mm | 3.5mm | 25*20*2mm |
| TO220F | AT-TO220F-040 | 0.635mm | 4 | 28*22*0.635mm |
| TO220F | AT-TO220F-041 | 1mm | 4 | 28*22*1mm |
| Alumina Ceramic Washer for TO247 | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| TO247 | AT-TO247-042 | 1.5mm | 3.1mm | 20.5x17.5x1.5mm |
| TO247 | AT-TO247-043 | 1.8mm | 3.8mm | 20.5x17x1.8mm |
| Alumina Ceramic Washer for TO3A | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| TO3A | AT-TO3A-044 | 3mm | Hole: 4.9mm Elongated hole: 4.2x4.9mm | 40.5x26.2x3mm |
| TO3A | AT-TO3A-045 | 3mm | Hole: 4.9mm Elongated hole: 4.2x4.9mm | 40.5x26.2x3mm |
| Alumina Ceramic Washer for DO4A-DO4B DO5A-DO5B | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| DO4A | AT-DO4A-046 | 1.57mm | 8.2mm | AD20.1x1.57mm |
| DO4A | AT-DO4A-047 | 3,5mm | 8.2mm | AD20.1x3.5mm |
| DO4B | AT-DO4B-048 | 1,6mm | 6.6mm | AD20x1.6mm |
| DO5A | AT-DO5A-049 | 1mm | 5.1mm | AD13x1mm |
| DO5B | AT-DO5B-050 | 1.5mm | 3.2mm | AD9.5x1.5mm |
| DO5B | AT-DO5B-051 | 2.3mm | 3.2mm | AD9.5x2.3mm |
| Alumina Ceramic Washer for SOT32A | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| SOT32A | AT-SOT32A-052 | 1.5mm | 3.1mm | 11x8x1.5mm |
| SOT32A | AT-SOT32A-053 | 1.5mm | 3.1mm | 11x8x1.5mm |
| Alumina Ceramic Washer for Substrate | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| Substrate | AT-Substrate-054 | 3mm | / | 25x10x3mm |
| Substrate | AT-Substrate-055 | 5mm | / | 25x10x5mm |
| Alumina Ceramic Washer for TOP3-TO127 | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| TO127 | AT-TO127-056 | 3mm | 4mm | 25x21x3mm |
| TOP3 | AT-TOP3-057 | 1.5mm | 3.1mm | 20.5x17.5x1.5mm |
| Alumina Ceramic Washer for TO5-TO18 | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| TO18 | AT-TO18-058 | 1.5mm | 3x0.9mm | OD8x1.5mm |
| TO5 | AT-TO5-059 | 1.5mm | 3x1.11mm | AD10.9x1.5mm |
| Alumina Ceramic Washer for TO218 | ||||
| For housing | Item no. | Thickness | Hole | Dimensions |
| TO218 | AT-TO218-060 | 1.5mm | 4mm | 25x21x1.5mm |
| TO218 | AT-TO218-061 | 3mm | / | 25x21x3mm |
| TO218 | AT-TO218-062 | 3mm | 4mm | 25x21x3mm |
| TO218 | AT-TO218-063 | 4mm | 4mm | 25x21x4mm |
| Material | 99% Alumina (AL2O3) |
| Thermal Conductivity | 24.0w/m.k |
| Electrical Insulation | ≤22.5KV, temperature resistance up to 1600℃ |
| Density | 3.83g/cm3 |
| Thermal Expansion Coefficient | 7*10-6/℃ |
| Bending Strength (at room temperature) | 310MPa |
| Compressive Strength (at room temperature) | 2200MPa |
| Hardness (Hv) | 1650 |
| Fracture Toughness | 4.2MPa*m1/2 |
*This chart illustrates the standard characteristics of the alumina materials commonly employed in the manufacturing of our alumina products and parts. Please be aware that the attributes of customized aluminum oxide products and parts may vary depending on the specific processes involved.
Alumina washers are carefully packaged in appropriate containers to avoid any potential damage.
1. According to your application scenario, analyze the needs, choose the appropriate material and processing plan.
2. Professional team, quick response, can provide solutions and quotations within 24 hours after confirming the demand.
3. Flexible business cooperation mechanism, support at least one piece of quantity customization.
4. Quickly provide samples and test reports to confirm that the product meets your needs.
5. Provide product use and maintenance suggestions to reduce your cost of use.
Although our primary focus is on advanced ceramic materials such as alumina, zirconia, silicon carbide, silicon nitride, aluminum nitride, and quartz ceramics, we are always exploring new materials and technologies. If you have a specific material requirement, please contact us, and we will do our best to fulfill your needs or find suitable partners.
Absolutely. Our technical team possesses profound knowledge of ceramic materials and extensive experience in product design. We are happy to provide you with material selection advice and product design support to ensure optimal performance for your products.
We do not have a fixed minimum order value requirement. We always focus on meeting our customers' needs, and we strive to provide quality service and products regardless of the order size.
In addition to ceramic products, we also provide a range of additional services, including but not limited to: customized ceramic processing services based on your needs, using blanks or semi-finished blanks produced by yourself; if you are interested in outsourced ceramic packaging and metallization services, please contact us for further discussion. We are always committed to providing you with a one-stop solution to meet your various needs.
Yes, we do. No matter where you are located globally, we can ensure the safe and timely delivery of your order.
