Why Choose Our Dielectric Pads?
- GALLOP INNOTEK has over a decade of experience in the manufacture of dielectric materials, achieving a monthly production capacity of 500 tonnes.
- GALLOP INNOTEK maintains a comprehensive In-house quality testing system to ensure each dielectric pad meets high-quality standards.
- All dielectric spacers are certified to ISO 9001:2008, ISO 14001, IATF 16949 and ISO 45001.
- Whether ordering small batches or large quantities, you can obtain complimentary samples promptly.
- GALLOP INNOTEK provides you with all services from product selection to assembly.
Your Reliable Dielectric Pads Supplier
GALLOP INNOTEK’s dielectric pads combine high dielectric strength with high thermal conductivity, simultaneously resolving heat dissipation and insulation challenges to deliver enhanced stability for your products. We provide technical support, including thermal simulation, rapid prototyping services, OEM solutions, and CFD simulation to optimise delivery efficiency. With over five testing laboratories and stringent quality control procedures, we offer you uniform product quality.
Features of Dielectric Pads
With good dielectric strength (1–10 kV/mm) and breakdown voltage (1–13 kV/mm), achieving reliable insulation performance.
GALLOP INNOTEK offers dielectric pads with thermal conductivities ranging from 1 to 20 W/m·K
Pre-machining and precision cutting reduce installation steps and costs, and resolve both issues at once.
Dielectric pads ranging from 0.2mm to 20mm are available for different gap dimensions.
Dielectric Pads are compressible and can be easily pressed to conform to the surfaces of components and heat sinks.
Less prone to drying out or leaking during use, maintaining long-term stable performance for your product.
Provides additional cushioning protection for high-vibration and impact applications.
High performance, extended service life and efficient installation deliver outstanding cost-effectiveness.
Flexible Customisation
GALLOP INNOTEK offers customised options for dielectric pad thickness, thermal conductivity, dielectric strength and other properties to meet your diverse product requirements. We provide comprehensive guidance throughout the entire process prior to your product’s launch. Should you be uncertain about thermal conductivity specifications, we can arrange professional thermal simulation testing. We also support rapid prototyping and mould flow analysis services to accelerate project progress. Additionally, we offer precision cutting and assembly services for dielectric pads.
Combined Thermal and Electrical
Benefiting from the dual function of dielectric pads in both thermal dissipation and insulation, they are an ideal solution for electronic and power products. On the one hand, the elimination of separate thermal conductive and insulating materials simplifies installation and processing operations, and you can get higher production efficiency. On the other hand, it reduces the initial investment in procuring two distinct materials and minimises additional installation costs, proving cost-effective for both small and large production runs.
Long-Term Reliability
Dielectric pads have less drying and oozing compared to thermal pastes, and achieve stable function for extended periods (approximately 2 to 10 years). Therefore, your product can enjoy a longer lifespan and require less maintenance. Furthermore, GALLOP INNOTEK operates its own testing laboratory, where all products undergo ageing tests, temperature cycling tests, breakdown voltage tests, and other assessments prior to shipment to make sure long-term reliability.
Applications of Dielectric Pads
Used between components such as MOSFETs or IGBTs and heat sinks. Accelerates cooling and reduces the risk of short circuits, offering stable functioning.
Suitable for use in ECU components, OBC and battery systems. Dielectric pads enhance precision and reduce errors. They also improve energy efficiency.
Dielectric pads used in UPS systems and solar inverters achieve continuous high-voltage operation, reducing damage and downtime caused by overheating and short circuits.
Certain types of dielectric pads offer not only long-term durability but also corrosion resistance, protecting transformers and power supplies while enhancing operational stability.
Power supply equipment, control apparatus and electrical installations within industrial settings may all utilise dielectric spacers for thermal management and insulation protection.
In high-frequency electronic equipment, dielectric spacers can enhance operational accuracy by reducing signal crosstalk whilst providing efficient heat dissipation.
Dielectric pads are thermal pads with high dielectric strength, balancing thermal dissipation performance with dielectric properties. Certain thermal interface materials excel in heat dissipation but feature low dielectric strength, and they are unsuitable for electrical equipment.
Yes, dielectric pads combine dielectric strength with thermal conductivity. Should your product require both insulating protection and efficient heat dissipation, it is the first choice.
Certainly, dielectric pads can help achieve more stable operation in high-voltage applications. You may select a dielectric pad with enough dielectric strength according to the voltage level of your application.
This depends on the gap size between the components and heat sinks within your product. You should select or customise a thickness that matches accordingly. Both excessively thin and excessively thick options fail to maximise thermal contact area, thereby compromising the performance of the dielectric pads.
What are Dielectric Pads?
Dielectric pads are thermal pads with great insulating properties. Benefiting from low dielectric constants and high dielectric strength, they provide excellent insulation protection while efficiently dissipating heat from thermal components. This allows for the safer application of thermal pads in power supply modules, electronic equipment, etc., and further enhances product operational reliability.
Types of Dielectric Pads
Silicone Dielectric Pads
Silicone dielectric spacers are widely used due to their combination of high thermal conductivity, high dielectric strength, and excellent compressibility. They are manufactured by incorporating highly conductive materials(such as aluminium oxide, boron nitride, or aluminium nitride) into highly insulating silicone rubber. Their dielectric strength typically ranges from 1 to 10 kV/mm, allowing you to use them across industrial equipment, automotive, and energy sectors. Additionally, their elastic properties provide effective cushioning against vibration and impact, enhancing overall safety.
Fibreglass Reinforced Silicone Pads
Fibreglass reinforced silicone pads achieve superior mechanical strength through the addition of glass fibre reinforcement. They achieve less deformation and tearing than silicone dielectric pads, though this also reduces their thermal conductivity. They are well-suited for industrial applications subject to high stress. This enables your products to achieve a longer service life.
Ceramic Dielectric Pads
Ceramic dielectric spacers are typically composed of materials such as aluminium oxide or aluminium nitride ceramics. They generally have ultra-high thermal conductivity and dielectric strength compared to mica dielectric pads and fibreglass reinforced silicone pads, alongside greater hardness. Additionally, they possess corrosion resistance and can withstand harsher environments. However, they lack elasticity and are more prone to fracture compared to silicone alternatives. Consequently, you are advised not to use it in products that are susceptible to vibration and impact.
Mica Dielectric Pads
Mica is also a material with high insulation properties and thermal resistance. It requires processing into sheets and must be used in conjunction with thermal grease. This makes both its processing and installation rather complex. Consequently, more product owner opt against using mica sheets, instead favouring more economical, reliable, and straightforward alternatives such as silicone dielectric pads.
Phase Change Dielectric Pads
Phase-change dielectric pads can be installed with equal ease between heat sinks and components as silicone thermal pads. When components generate heat, the pad absorbs it and transitions to a liquid state. This allows it to conform more closely to surfaces, achieving superior thermal transfer and insulation. It subsequently releases heat and solidifies at lower temperatures. Consequently, it maintains a stable temperature range for your products, making it ideal for temperature-sensitive applications.
How to Choose the Right Dielectric Pads for Your Application?
Specify the Operating Voltage and Thermal Conductivity
First, you must select a dielectric pad with enough performance based on the product’s operating voltage and thermal load. When choosing dielectric strength, select according to the maximum operating voltage(kV/mm) while incorporating a safety margin. When selecting thermal conductivity, you must also consider thermal resistance. GALLOP INNOTEK can also conduct professional testing on your product to obtain precise values and help with the selection of the best dielectric pads.
Choose the Right Thickness
Accurately measure the gap thickness between the component and heat sink to select the most suitable dielectric pad. While thicker thermal pads may achieve better insulation, they increase thermal resistance and reduce heat dissipation efficiency. You may balance these factors when making your selection. Should your component feature a complex surface profile, opting for a softer dielectric pad will provide better conformability.
Consider the operating Temperature
Different models of dielectric pads have different operating temperatures(typically ranging from -60 to 200°C). Selection should be based on the products’ operating temperature. Use beyond the optimum operating temperature may result in reduced dielectric and thermal dissipation performance, and may also affect the service life of pads and products.
Silicone dielectric pads dissipate heat from components whilst providing insulation. Mica insulating materials require the use of thermal paste to achieve effective heat dissipation. Therefore, silicone dielectric pads offer simpler installation and greater cost-effectiveness.
Yes, the thickness, hardness and other properties of the dielectric pads can be customised. We can also pre-cut the dielectric pads to precise specifications according to your requirements.
