To247 To220 Al2O3 Alumina Ceramic Wafer
- MSJ/CS-005
- 96% alumina ceramic
- customized
- 1000pcs
- electronic packing of diodes, triodes, MOS tubes and small-scale ICs
One of our hot selling products is ceramic substrate for electronic package applications. The materials of ceramic substrates we can produce are alumina ceramic and aluminum nitride ceramic. Both have good electrical insulation, good mechanical strength and high heat resistance. Product size could be customized accroding to your request.
Any inquiry please email info@mascera-tec.com or call +86 13860446139
Product detail
Ceramic wafers made of alumina ceramic have excellent properties of low weight, good electrical insulation, low dielectric loss, good thermal conductivity and high heat resistance etc, it is an ideal material for electrical insulation and heat dissipation purpose in electronic industries. Alumina ceramic wafers have been developped for electronic package of high-power diodes, triodes, MOS tubes and small-scale ICs. The thickness of alumina ceramic wafers could be 0.25mm, 0.385mm, 0.5mm, 0.635mm, 0.8mm, 1.0mm, 2mm, 3mm , 4mm or customized size. The flatness and surface roughness are good, the product size and material properties are stable.
Mascera will adopt corresponding production technologies according to customers' different requirement for dimensions or quality. We are capable to provide alumina ceramic wafers in short time for big quantities to meet customers' using demands.
Advantages of Alumina Ceramic Wafers
1. Ceramic wafer dissipates heat quickly, enhancing thermal efficiency.
2. Ceramic structure surpasses most thermal insulation materials in heat dissipation.
3. Multi-directional heat dissipation speeds up cooling.
4. electrical insulation, high thermal conductivity, and resistance to high voltage, temperature, abrasion, oxidation, acid, and alkali.
5. Effective EMI and anti-static properties.
6. Environmentally-friendly natural organic materials.
7. Small size, light weight, high strength, and space-saving.
8. Ideal for high-power equipment with compact design requirements.
Overview of main Al2O3 Ceramic wafer
| Product Photo | Product categories | For housing | Thickness | Hole | Dimensions |
| AL2O3 washer FOR TO220A-F | TO220A | 1.5mm | 3.8mm | 16.5x12.7x1.5mm |
| 1mm | 3.8mm | 16.5x12.7x1mm | |||
| TO220B | 3mm | 3.7mm | 17.3x12.3x3mm | ||
| TO220C | 1.5mm | 3.1mm | 18x12x1.5mm | ||
| 1.5mm | 4mm | 18x12x1.5mm | |||
| 1.5mm | 3.6mm | 18x12x1.5mm | |||
| 1.5mm | 3.1mm | 18x12x1.5mm | |||
| 3mm | without | 18x12x3mm | |||
| 3mm | 3.1mm | 18x12x3mm | |||
| TO220D | 1.5mm | 3.2mm | 18x14x1.5mm | ||
| 3mm | without | 18x14x3mm | |||
| 3mm | 3.2mm | 18x14x3mm | |||
| 4.5mm | 3.2mm | 18x14x4.5mm | |||
| 4.5mm | 3.5mm | 18x14x4.5mm | |||
| TO220E | 1.6mm | 3.7mm | 19.3x14x1.6mm | ||
| 2.5mm | 3.7mm | 19.3x14x2.5mm | |||
| 2mm | 3.7mm | 19.3x14x2mm | |||
| 3mm | 3.7mm | 19.3x14x3mm | |||
| 4mm | 3.7mm | 19.3x14x4mm | |||
| TO220F | 1.5mm | 3.6mm | 23x20x1.5mm | ||
| 1mm | without | 23x20x1mm | |||
| 1mm | 3.6mm | 23x20x1mm | |||
| 2mm | without | 23x20x2mm | |||
| 2mm | 3.6mm | 20x20x2mm | |||
| 3mm | without | 23x20x3mm | |||
| 4mm | without | 23x20x4 mm | |||
| 4mm | 3.6mm | 23x20x4mm | |||
 | AL2O3 washer FOR TO247 | TO247 | 1.5mm | 3.1mm | 20.5x17.5x1.5mm |
| 1.8mm | 3.8mm | 20.5x17x1.8mm | |||
 | AL2O3 washer FOR TO3A | TO3A | 3mm | Hole: 4.9mm Elongated hole: 4.2x4.9mm | 40.5x26.2x3mm |
 | AL2O3 washer FOR DO4A-DO4B | DO4A | 1.57mm | 8.2mm | AD20.1x1.57mm |
| DO4A | 3,5mm | 8.2mm | AD20.1x3.5mm | ||
| DO4B | 1,6mm | 6.6mm | AD20x1.6mm | ||
| AL2O3 washer FOR DO5A-DO5B | DO5A | 1mm | 5.1mm | AD13x1mm | |
| DO5B | 1.5mm | 3.2mm | AD9.5x1.5mm | ||
| DO5B | 2.3mm | 3.2mm | AD9.5x2.3mm | ||
 | AL2O3 washer FOR SOT32A | SOT32A | 1.5mm | 3.1mm | 11x8x1.5mm |
 | AL2O3 washer FOR Substrate | Substrate | 3mm | without | 25x10x3mm |
| Substrate | 5mm | without | 25x10x5mm | ||
 | AL2O3 washer FOR TOP3-TO127 | TO127 | 3mm | 4mm | 25x21x3mm |
| TOP3 | 1.5mm | 3.1mm | 20.5x17.5x1.5mm | ||
 | AL2O3 washer FOR TO5-TO18 | TO18 | 1.5mm | 3x0.9mm | OD8x1.5mm |
| TO5 | 1.5mm | 3x1.11mm | AD10.9x1.5mm | ||
 | AL2O3 washer FOR TO218 | TO218 | 1.5mm | 4mm | 25x21x1.5mm |
| TO218 | 3mm | without | 25x21x3mm | ||
| TO218 | 3mm | 4mm | 25x21x3mm | ||
| TO218 | 4mm | 4mm | 25x21x4mm |
96% Alumina Ceramic Property Data
| ITEM | UNIT | PARAMETER |
|---|---|---|
| Al2O3 Purity | % | 96 |
| Color | ‐ | White |
| Density | g/cm3 | ≥3.72 |
| Warpage | --- | ≤3‰*Length |
| Water Absorption | % | 0 |
| Moh’s Hardness | ‐ | 9 |
| Fracture Toughness | Mpa.m1/2 | 3‐4 |
| Flexural Strength(at 25℃) | Mpa | ≥350 |
| Thermal Conductivity | W/m.k | ≥24 |
| Coefficient of Thermal Expansion(20~300℃) | 10‐6/℃ | 8 |
| Max working temperature | ℃ | 1650 |
| Dielectric Constant(1MHz, 25℃) | ‐ | 9~10 |
| Dielectric Loss(1MHz, 25℃) | ‐ | 0.0003 |
| Dielectric Strength | KV/mm | 17 |
| Volume resistivity | Ω.cm | 1014 |
Typical Application
Alumina ceramic wafers are widely applied for IC modules, IGBT, MOS, triode, portable electronic devices, high frequency mechanical equipment, electronic communication equipment, radiator, automobile engine control device and automotibe electronics etc.
Packing & Shipment
| Package type | carton box with foam protection |
| Payment terms | TT / Western Union / Paypal 50% payment in advanced and 50% before shipment |
| Loading port | Xiamen, China |
| Shipping way | By sea / air / door-to-door express |
Why Choose Us
10+ years experience in technical ceramics manufacturing and R&D
ISO9001:2015 certificated quality control management system
Different types of ceramic materials are provided for your different applications
Products have been exported to 40+ countries and have good reputation from our customers
MOQ is low, both prototype and bulk order will keep high quality
Any of your inquiries or questions will be responded no longer than 24 hours
Rigorous production plan to ensure on-time delivery
