Product Description:

Material Characteristics

• High Melting Point and High Temperature Resistance: Ceramic heat sinks have an extremely high melting point and can maintain stable performance under high-temperature environments. For example, silicon carbide ceramic heat sinks can withstand ultra-high temperatures of up to 1800 degrees Celsius, demonstrating significant advantages in high-temperature applications such as aerospace and industrial kilns.
• High Hardness and High Strength: Their hardness is much higher than that of ordinary thermal conductive materials. They have a dense structure, excellent wear resistance and mechanical strength, and are not easily damaged by external forces. They can withstand a certain degree of impact and friction.
• Good Chemical Stability: Ceramic materials possess excellent chemical stability and are not prone to chemical reactions with other substances. They are resistant to acid and alkali corrosion and can adapt to various harsh chemical environments. They can be used outdoors or in the chemical industry for a long time without being corroded.
• Outstanding Insulation Performance: Ceramic heat sinks hardly conduct electricity and are excellent insulators with high insulation resistance. They can withstand large currents and high voltages, effectively preventing leakage and breakdown, and avoiding the influence of electromagnetic interference and static electricity. They are suitable for electronic equipment with high requirements for electrical insulation.

Heat Dissipation Performance

• Relatively High Thermal Conductivity: Some ceramic heat sinks, such as thermally conductive aluminum nitride ceramic sheets and silicon carbide ceramic heat sinks, have relatively high thermal conductivity and can quickly conduct heat away from heating elements. Among them, the thermal conductivity of silicon carbide ceramic heat sinks can reach 180 W/m·K, which is much higher than that of some traditional heat dissipation materials.
• No Heat Storage and Direct Heat Dissipation: Ceramic heat sinks have a small heat capacity and do not accumulate heat themselves. They can directly dissipate heat into the surrounding environment without forming a "heat gradient" like metal heat sinks, resulting in higher heat dissipation efficiency and effectively reducing the temperature of heating elements.
• Good Thermal Radiation Effect: Ceramic materials themselves have good thermal radiation characteristics and can dissipate heat in the form of thermal radiation, further enhancing the heat dissipation effect and performing excellently in some equipment with high heat dissipation requirements.

Product Advantages

• Small Size and Light Weight: Ceramic heat sinks usually have a small size and light weight, occupy little space, and are convenient for installation and use in various miniaturized and lightweight electronic devices. They are conducive to the rational layout of the heat dissipation design of electronic products and can meet the heat dissipation requirements of devices with strict space requirements, such as mobile phones and tablets.
• Good Electromagnetic Compatibility: Ceramic heat sinks do not generate electromagnetic waves and can also isolate and absorb some electromagnetic waves, effectively reducing electromagnetic interference (EMI) and making the equipment operate more stably. They are especially suitable for heat dissipation of electronic components in electronic products with high requirements for electromagnetic compatibility, such as communication base stations and radar equipment.

Application Fields

• Electronic Equipment Field: They are widely used in high-power equipment, IC MOS tubes, IGBT patch-type thermal conduction and insulation, high-frequency power supplies, communications and other electronic products. They provide heat dissipation guarantees for core chips such as the CPU and GPU of computers, processors of mobile phones, and various high-frequency and high-power electronic components to ensure the stable operation of the equipment.
• Power Industry: They are used in power converters, inverters and other equipment to help dissipate the heat generated by high-power power components, prevent the equipment from being damaged due to overheating, and improve the reliability and service life of power equipment.
• Automotive Field: In new energy vehicles, they can be applied to battery management systems, motor controllers and other components to dissipate heat for electronic components with high power density and ensure the normal operation of the automotive electronic system. In addition, they can also be used for heat dissipation of electronic sensors and other components around the engine of automobiles.

Appearance and Specifications

• Various Shapes: Common shapes include round, square, rectangular, etc. They can be customized according to different application scenarios and installation requirements. For example, special-shaped ceramic heat sinks designed according to the shapes of specific electronic components are available.
• Rich Size Specifications: The dimensions such as thickness, side length and diameter cover a wide range to meet the requirements of different sizes of heating elements and equipment spaces. For example, aluminum oxide ceramic sheets have conventional models such as TO-220, TO-247, TO-264, TO-3P, and thicknesses including 0.635mm, 0.8mm, 1.0mm, 2.0mm, 3.0mm, 4.0mm, etc.

Processing Technology

• Sintering Process: High-temperature sintering technology is adopted to sinter ceramic raw materials at high temperatures to form them with a dense structure and good performance. Different ceramic materials and product requirements will adopt different sintering temperatures and process parameters to obtain the best heat dissipation and mechanical properties.
• Precision Machining: Through precision machining processes such as cutting, grinding and polishing, the dimensional accuracy and surface flatness of ceramic heat sinks are ensured to meet the requirements of close fitting with heating elements, improve heat dissipation efficiency, and also facilitate better installation and heat dissipation effects in limited spaces.

Quality Standards

• Compliance with Industry Standards: They need to comply with relevant electronic industry standards and quality certification requirements, such as ISO 9001 quality management system certification, to ensure the stability and reliability of product quality.
• Reliability Testing: They have undergone strict reliability tests such as aging tests, voltage boost tests and thermal tests to ensure stable performance during long-term use. For example, applying 110% of the rated voltage, connecting a diode in series, and conducting on-off cycles multiple times without abnormalities.

Features:

• Product Name: Ceramic Heat Sink
• Temperature Resistance: ＜700℃
• Surface Roughness: 0.3-0.8 Um
• Density: 3.7g/cm^3
• Material: Ceramic, SiC, Al₂O₃, SiO₂, Al₄C₃
• Mechanical Strength: ≥3000MPa
• Low cost
• Not affected by humidity and dust
• No antennae effect

Technical Parameters:

Applications:

The Ceramic Heat Sink/Ceramic Micro Porous Heat Sink has a large surface area compared to Aluminium Heat Sinks, resulting in better heat dissipation. Its lightweight design makes it easy to install and handle. With a temperature resistance of less than 700℃ and a density of 3.7g/cm^3, this product is ideal for applications that require high-temperature resistance and high-density power.

This product can be used with various electronic devices such as Transistors, MOSFETs, Schottky Diodes, IGBTs, high-density switching power supplies, high-frequency communication signal equipment, high-frequency welding machines, and other electronic devices. Its power dissipation of up to 10W makes it suitable for high-performance applications.

At Race, we offer packaging options as per customer requirements and a delivery time of 7-15 days. Payment terms are 30% TT in advance, and the balance payment is paid before shipment. The Ceramic Heat Sink/Ceramic Micro Porous Heat Sink is available in green, black, white, and gray colors, giving our customers the opportunity to choose the color that best suits their device.