Tungsten Copper in Gas Discharge Tubes
Tungsten copper alloys are widely used as internal electrodes in gas discharge tubes (GDTs), which are surge protection devices that rely on gas ionization breakdown to suppress voltage spikes. These components are essential in communications, industrial power systems, and lightning protection networks.
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Benefits of W-Cu in GDTs:
Arc Resistance at High Temperatures: During discharge, temperatures can reach several thousand degrees Celsius. The tungsten phase resists melting and maintains structural integrity.
Stable Conductivity: Copper ensures low resistance along the discharge path, allowing efficient surge diversion.
Corrosion Resistance: W-Cu electrodes remain stable in the presence of ionized gases like argon and neon, extending device lifespan.
Good Sealing Compatibility: The thermal expansion of W-Cu is well matched to glass or ceramic housings, facilitating hermetic sealing.
Typical Use Cases:
Telecom line protection (DSL, telephone, base stations)
Industrial power and control systems
Overvoltage suppression in precision instrumentation circuits
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Email: sales@chinatungsten.com
Tel.: +86 592 512 9696 ; +86 592 512 9595