Metallized Ceramic Housing For Power Semiconductors

Against the backdrop of the rapid evolution of the new energy industry towards higher voltage and higher power density, traditional contactors frequently expose safety hazards due to insufficient material voltage resistance and thermal management failure. This product, as the third-generation upgrade solution of Metallized Ceramic Housing for Power Semiconductors, is specifically designed for 1500V-3000V high-voltage DC contactors. It adopts a 95% magnetic silicon oxide metallized ceramic substrate + T2Y2 copper stationary contact + alloy steel gasket brazed structure. Through material composite innovation and process breakthroughs, it achieves a 40% increase in voltage resistance, a 3-fold extension in thermal cycle life, and a 60% reduction in contact resistance, becoming a core safety barrier for contactors in scenarios such as new energy vehicles, photovoltaic inverters, and energy storage systems.

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Products Description

Metallized Ceramic Housing for Power Semiconductors

In high-voltage direct current (HVDC) systems for new energy applications, contactors are not merely circuit switches, but crucial hubs for energy transmission. Designed for demanding operating conditions, we have created this Metallized Ceramic Housing for Power Semiconductors.This component uses a 95% alumina substrate as its core carrier, combining precision T2Y2 copper stationary contacts with alloy steel gaskets, and is encapsulated using advanced brazing technology. More than just a component, it is the "heart" connecting power electronic devices to the bus system, ensuring a reliable connection with zero failures and zero flashovers at thousands of volts.

Material Advantages

95% Magnetic Silica Ceramic

Compared to traditional alumina ceramic, dielectric loss is reduced by 70%, and internal gas paths can be customized through laser drilling technology, optimizing contactor vacuum for Alumina ceramic parts precision machining.

T2Y2 Copper

Added trace amounts of silver and chromium for solid solution strengthening, increasing hardness to HV120, improving wear resistance by 3 times, and reducing contact erosion for Metallized Alumina Ceramics for Electrical Components.

Alloy Steel Gasket

Made of 17-4PH precipitation-hardening stainless steel with a yield strength of 1100MPa, and with surface nitriding treatment, corrosion resistance meets ISO 9227 standard 1000-hour salt spray test for Metalized Ceramic Insulating Tubes Metalizating Ceramic Part.

Alumina ceramic parts precision machining

Detailed Specifications

01.

Microstructure

Ceramic grain size is controlled within 3-5μm, and the porosity of the metallization layer is ≤1%, ensuring reliable insulation for Metalized Ceramics for Electrical Components.

02.

Contact Surface Design

The contacts adopt a hyperboloid structure, increasing the contact area while dispersing current density and preventing localized overheating for
Metalized Ceramic Insulating Tubes Metalizating Ceramic Part.

03.

Sealing Performance

The gasket and ceramic substrate are sealed using laser welding, with a leakage rate ≤1×10⁻⁹ Pa·m³/s, meeting the requirements for vacuum contactors for Metallized Alumina Ceramics for Electrical Components.

04.

Identification and Traceability

Each product is laser-engraved with a unique ID, linked to production batch, testing data, and material certificates, enabling full lifecycle traceability.

Details Presentation of Metallized Ceramic Housing for Power Semiconductors

Application Advantages

New Energy Vehicles

Adapted to 800V high-voltage platforms, supports 2000A peak current in fast charging mode, and meets the heat dissipation requirements of SiC power devices for Alumina ceramic parts precision machining.

Photovoltaic Energy Storage

Operates stably in extreme cold (-40℃) and high temperature (+60℃) environments, and is compatible with the high-voltage design of string inverters for Metallized Alumina Ceramics for Electrical Components.

Industrial Power Supplies

UL 1577 safety certified, suitable for scenarios with stringent reliability requirements such as medical equipment and data centers for Metalized Ceramic Insulating Tubes Metalizating Ceramic Part.

Production Technology and Application of Metallized Ceramic Housing for Power Semiconductors

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