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Molybdenum (Mo) Disc / Square


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Molybdenum Discs possess high melting point, strong strength, stable chemical composition, excellent processing performance, superior conductivity, and low thermal expansion. They are widely recognized as the optimal material for thyristor rectifier components. Heeger Materials provides premium Molybdenum Discs at competitive prices, offering customization to meet specific requirements.

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Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.

Data sheet

MaterialsMolybdenum metal/TZM/MoLa Alloy
Purity99.9% - 99.99%
StandardASTM B386

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Molybdenum discs are available in pure form or coated with materials such as Ruthenium (Ru), Rhodium (Rh), Nickel (Ni), Silver (Ag), Gold (Au), etc., using PVD or evaporation techniques. These discs serve as crucial contact materials in silicon-controlled rectifier diodes, transistors, and thyristors. With similar coefficients of thermal expansion (CTE) to silicon and moderate thermal conductivity, molybdenum is well-suited for large-area power devices that generate significant heat. Additionally, we offer Molybdenum Sputtering Targets.

Molybdenum (Mo) Disc/Square

Molybdenum Disc Specifications

  • Size: 5-150mm diameter x 0.2-12.0mm thickness, tolerance: ±0.025mm
  • Flatness: <0.005mm
  • Parallelism: <0.01mm
  • Roughness Ra<0.063mm
  • Plating: Ru, Rh, Ni, Ag, Au, etc.
  • Material: Mo, TZM, MoLa alloy         

Molybdenum Square Specifications

Molybdenum Square

25 ~ 100mm Width/Length

0.5 ~ 1.5mm Thickness

Flatness Tolerance

< 4um


Ra 0.8

Molybdenum Square

Molybdenum Disc/Square Applications

  • Silicon Controlled Rectifiers Diodes
  • Transistors
  • Thyristors (GTO's)
  • Heat Sink Bases in IC's, LSI’s, and Hybrid Circuits   

Molybdenum Disc/Square Packaging

Molybdenum (Mo) Disc/Square will be carefully packaged in wooden cases, supported with soft materials to prevent any movement during transportation. This ensures that the products remain securely in place throughout the packaging process.

Molybdenum (Mo) Disc/Square Packing

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