Overview of Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247

Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247 is manufactured from 99%+ pure aluminum oxide (Al₂O₃), delivering exceptional mechanical strength and thermal stability. These advanced ceramic parts maintain dimensional stability in extreme environments up to 1800°C, making them perfect for demanding applications in semiconductor equipment, aerospace components, chemical processing, and high-temperature industrial machinery.

Features of Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247

Ultra-High Temperature Resistance – Withstands continuous operation up to 1800°C

Exceptional Mechanical Strength – Superior hardness and wear resistance compared to metals

Corrosion & Chemical Proof – Resists acids, alkalis, and harsh industrial chemicals

Electrical Insulation – Excellent dielectric properties for electronic applications

Customizable Designs – Available in complex geometries with tight tolerances (±0.01mm)

(Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247)

Specification of Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247

This thermal pad is made from alumina ceramic. Alumina ceramic is a good material for heat transfer. It moves heat away from electronic parts. This pad also stops electricity from flowing. It keeps electricity separate where needed. These pads fit common transistor packages. They work for TO220, TO3P, TO264, and TO247 styles. Each size is made specifically for its package. This ensures a tight fit. A tight fit helps heat move better.

The alumina material is very hard. It does not break easily under pressure. It handles high temperatures well. You can use it in hot places. The thermal conductivity is high. This means heat moves through it quickly. Heat moves from the hot component to the cooler heatsink. Electrical insulation is very important. This pad stops thousands of volts. It prevents short circuits. It keeps things safe.

These pads are thin. They do not take up much space. But they work very effectively. They are white in color. They are flat and smooth. You place them between the transistor and the metal heatsink. Apply thermal paste sometimes. Thermal paste fills tiny air gaps. Air gaps block heat flow. The paste helps heat move even better.

These pads are reliable. They last a long time. They don’t wear out quickly. They are used in power supplies. They are used in motor drives. They are used in amplifiers. Anywhere transistors get hot, these pads help. They keep electronics cooler. Cooler electronics work better. Cooler electronics last longer. You need the right size pad for your transistor package. Check the dimensions carefully before buying. Using the correct size is critical.

(Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247)

Applications of Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247

Alumina ceramic pads are important parts. They are used in electronics. These pads help with heat. They also provide electrical insulation. Power semiconductors need this. TO220, TO3P, TO264, TO247 are common packages. Power transistors and MOSFETs use these packages. These components generate significant heat during operation. Good heat transfer is crucial. Without it, components overheat. Overheating leads to failure. Alumina ceramic pads transfer heat efficiently. They move heat away from the semiconductor die. The heat moves towards the heatsink. This keeps the device cooler. It allows better performance. It increases reliability. Electrical insulation is another key point. The pad sits between the semiconductor and the heatsink. It stops electrical current from flowing between them. This prevents shorts. It protects the circuit. Safety is improved. Alumina ceramic is very good for this. It has high thermal conductivity. It also has excellent electrical insulation properties. Other materials might offer one benefit but not both. Silicone pads are soft and insulating. They don’t transfer heat as well as alumina. Mica sheets provide insulation. Their thermal performance is lower. Alumina ceramic pads offer the best balance. They handle high temperatures easily. They are mechanically strong. They are durable. They are chemically stable. These pads are widely used. Power supplies need them. Motor drives use them. Inverters rely on them. Amplifiers benefit from them. Any device using TO220, TO3P, TO264, TO247 power devices likely uses these pads. They are placed directly under the semiconductor package. They mount against the heatsink surface. Thermal paste is often applied. This paste fills tiny gaps. It improves heat transfer. Proper installation is important. The pad must make good contact. The right thickness matters. Alumina pads come in different thicknesses. Choosing the correct size ensures effective thermal management and electrical isolation. They are a reliable solution for demanding applications.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247

This alumina ceramic pad works as an insulator. You place it between electronic parts like transistors (TO220, TO3P, TO264, TO247) and their heatsinks. It stops electricity from flowing through. Heat moves from the hot part through the pad into the heatsink. This keeps parts cooler safely.

The pad blocks electrical current completely. It handles high voltages. Heat passes through it very well. Its thermal conductivity is high, usually 24-28 W/mK. This material is tough. It resists breaking under pressure or temperature changes. It won’t crack easily.

These pads fit common power transistor and IC packages. The main sizes are TO220, TO3P, TO264, TO247. You need the right pad size for your specific part. Match the pad to the transistor package. Using the wrong size causes problems.

Clean both surfaces first. Put a thin layer of thermal paste on each side of the pad. Then mount the transistor on the pad. Fix the assembly onto the heatsink. Tighten screws evenly. Skipping paste creates air gaps. Air gaps trap heat. Good contact is essential.

You can reuse the pad sometimes. Check it carefully first. Look for cracks or deep scratches. Any damage means replace it. Clean off all old thermal paste completely. Apply fresh paste for the next use. A damaged pad doesn’t insulate properly. It might overheat your parts.

(Thermal Conductive Insulating Alumina Ceramic Pad Plate TO220, TO3p, TO264, TO247)