Tungsten Disc, W


New product

Tungsten disc and tungsten squares are widely used as contact materials in silicon-controlled rectifier diodes, transistors, and thyristors. 

More details

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

Data sheet

Materials Tungsten&Tungsten alloy
Purity 99.9% - 99.99%
Standard ASTM B777
Dimensions 1-150mm diameter x 0.1-12.0mm thickness, customized

More info

Tungsten discs and tungsten squares are widely used as contact materials in silicon-controlled rectifier diodes, transistors, and thyristors. Tungsten has similar coefficients of thermal expansion (CTE) to silicon combined with moderate thermal conductivity and is therefore appropriate for large-area power devices where considerable heat is generated. Further applications include the use of Tungsten as heat sink bases in IC’s, LSI’s, and hybrid circuits.

HM is a trusted supplier of pure Tungsten and Tungsten alloy, we offer tungsten (W) discs in various sizes. Other specifications are also available upon request.

Tungsten Disc Specification

  • Size: Diameter: 1.0 mm – 150.0 mm (0.04” – 6.0”) x Thick: 0.1 mm – 12.0+ mm (0.004” – 0.5”+)
  • Surface: Flatness<0.005mm, Parallelism<0.01mm, Ra<0.063mm, Tolerance: ±0.025mm.
  • Material: Tungsten or Tungsten heavy alloy
  • Purity: 99.95%, 99.99%, 99.999%
  • Standard: ASTM B760
  • Coating: Ru, Rh, Ni, Ag, Au, etc.

Tungsten Disc Application

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

Tungsten Disc Order Info

  • Quantity (weight, number of pieces, or another suitable measure of quantity)
  • ASTM grade (See above Tungsten and Tungsten Alloy ASTM Grade)
  • Dimensions (Diameter and thickness)
  • Coating, if any
  • Additions to the specification and supplementary requirements, if any

Inquiry to Heeger Materials

Items marked with an asterisk (*) are required.
Please include item quantity, size and purity.
Privacy Information:

Heeger Materials respects your privacy, and we will NOT sell or provide your personal data to other third parties, or allow them to use your personal data for their own purposes. However, we would like to send you information from time to time by mail or email about our products and special offers in addition to the interest categories you've selected above. Read our Privacy Policy

29 other products in the same category: