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TO-220 Aluminum Nitride (AlN) substrates are high-performance ceramic insulators used for heat dissipation in power electronics, offering 5–10 times higher thermal conductivity ($\approx$150–260 W/(m·K)) than standard alumina. They act as thin, thermally conductive pads (typically 0.25–2 mm thick) compatible with TO-220, TO-247, and TO-264 packages, crucial for efficient heat transfer in MOSFETs and IGBTs.
Key Features and Benefits
- High Thermal Conductivity: Provides rapid heat transfer from the power semiconductor to the heat sink, outperforming traditional mica or alumina fillers.
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Web results
10pcs TO-220 Aluminium Nitride Ceramic Substrate ...
eBay
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eBay
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Aluminum nitride has super high thermal conductivity (5-10 times that of alumina ceramics), low dielectric constant and dielectric loss, reliable insulation ...Read more
AlN Ceramic substrate TO220 package Manufacturer
Fujian Huaqing Electronic Material Technology Co.,Ltd
https://www.huaqingcn.com › aln-ceramic-substrate-to22...
Fujian Huaqing Electronic Material Technology Co.,Ltd
https://www.huaqingcn.com › aln-ceramic-substrate-to22...
The TO-220 package is a "power package" intended for power semiconductors and an example of a through-hole design rather than a surface-mount technology type of ...Read more
TO220 Aluminum Nitride Ceramic Heat Sink AlN Insulating ...
cnhighborn.com
https://www.cnhighborn.com › ... › Aluminum Nitride
cnhighborn.com
https://www.cnhighborn.com › ... › Aluminum Nitride
The AlN is an ideal choice for heat dissipation substrate in electrical applications. It has high mechanical hardness, high thermal conductivity, similar ...Read more
TO-220/TO-247/264 Aluminum Nitride Ceramic Sheet AlN ...
AliExpress
https://www.aliexpress.com › item
AliExpress
https://www.aliexpress.com › item
It has excellent thermal conductivity (7-10 times of alumina ceramics), with low electric constant and dielectric loss, reliable insulation performance.Read more
People also ask
What is AlN substrate?
This aluminum nitride substrate can achieve both high heat dissipation and electrical insulation. As of its role of dissipating heat while maintaining insulation, it is used as a heat-dissipating substrate for power semiconductors and optical communication lasers in the 5G era.
Aluminum Nitride Substrate(AlN)
matsuo-sangyo.co.jp
https://www.matsuo-sangyo.co.jp › products › aluminum...
matsuo-sangyo.co.jp
https://www.matsuo-sangyo.co.jp › products › aluminum...
What happens when aluminum nitride reacts with warm water?
The reaction of aluminum nitride (AlN) powder with water has been known for a long time. In the presence of water AlN will decompose, forming aluminum hydroxide and ammonia:AlN + 3H2O → Al(OH)3 + NH3About a century ago this reaction was exploited for the production of ammonia.
The influence of temperature and time on the AlN powder hydrolysis ...
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
What are the disadvantages of aluminum nitride?
While aluminum nitride is robust in thermal and dielectric contexts, it is brittle when subjected to mechanical stress. This renders processing more difficult when it is produced. Furthermore, the small substrate sizes now available make mass applications less frequent.Aug 4, 2025
Advantages and Disadvantages of Aluminum Nitride Single Crystal ...
Stanford Advanced Materials
https://www.samaterials.com › blog › advantages-and-dis...
Stanford Advanced Materials
https://www.samaterials.com › blog › advantages-and-dis...
Is AlN biocompatible?
In particular, the biocompatibility of AlN piezodevices enables the autonomous power supply of sensors to monitor various human body parameters offering an essential advantage over Pb- and Zn-containing solutions.
biocompatible aln-based piezo energy harvesters for implants
Purdue University
https://engineering.purdue.edu › PDFs › Papers
Purdue University
https://engineering.purdue.edu › PDFs › Papers
Web results
TO-220 Aluminum Nitride Ceramic Thermal Pads
INNOVA Supplies
https://innovasupplies.com › Products
INNOVA Supplies
https://innovasupplies.com › Products
They fill air gaps for heat transfer between components, sinks, and cooling devices, applied in power devices, IC packaging, etc. Ceramic heat sinks dissipate ...Read more
10pc Aluminum nitride ceramic sheet ceramic substrate TO ...
eBay
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eBay
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10pc Aluminum nitride ceramic sheet ceramic substrate TO-220 T0-247 T0-3P T0-264 ; Time left. 29d 15h29 days 15 hours ; Quantity. 630 available ; Item number.Read more
TO-220 ALN Aluminum Nitride Substrate for Power ...
Alibaba.com
https://www.alibaba.com › ... › Ceramics
Alibaba.com
https://www.alibaba.com › ... › Ceramics
TO-220 ALN Aluminum Nitride Substrate by Innovacera offers high thermal conductivity, low dielectric constant, and excellent mechanical strength for power ...
China Aluminum Nitride Sheets TO-220/TO-247/3P/264 ...
Xiamen Green Way Electronic Technology Co., Ltd.
https://www.kungfuheating.com › ...
Xiamen Green Way Electronic Technology Co., Ltd.
https://www.kungfuheating.com › ...
Good thermal conductivity, small thermal expansion coefficient, is a good thermal shock resistance material. Strong resistance to molten metal erosion made it ...Read more
Aluminum Nitride Ceramic Substrate
Fujian Huaqing Electronic Material Technology Co.,Ltd
https://www.huaqingcn.com › aluminum-nitride-ceramic...
Fujian Huaqing Electronic Material Technology Co.,Ltd
https://www.huaqingcn.com › aluminum-nitride-ceramic...
Our Aluminum Nitride(AlN) Ceramic Substrate is an excellent material to use if you require high thermal conductivity and electrical insulation properties.Read more
TO-3P/220/247/254/257/258/264 Aluminum Nitride ...
innovacera
https://www.innovacera.com › News
innovacera
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Nov 21, 2022 — The pads are made of ceramic materials such as alumina ceramic and aluminum nitride, which help in providing enhanced thermal conductivity and excellent ...Read more
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Scholarly articles for TO220 AlN substrate | |
… parasitic reaction in high-temperature AlN growth by jet … - ‎Nagamatsu - Cited by 15 … tunneling diodes with peak current densities up to 220 … - ‎Encomendero - Cited by 80 … permittivity measurements up to 220 GHz using a … - ‎Kato - Cited by 3 | |