Tungsten Disc & Tungsten Square

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We supply tungsten disc, washer, and square for power semiconductors.

Tungsten discs & squares are widely used as contact materials in silicon-controlled rectifiers diodes, transistors, and thyristors (GTO’S), they are only involved in specialist applications. Otherwise, molybdenum is the first choice mounting material for power semiconductor devices due to its significantly lower cost and weight.

Tungsten and molybdenum have a similar coefficient of expansion to silicon combined with high thermal conductivity making them an ideal choice, especially in large-area power devices where considerable heat is generated. Further applications include the use of molybdenum and tungsten as heat sink bases in IC’S, LSI’S, and hybrid circuits.

• W Disc
• Tungsten Square

Tungsten discs and squares are cut from sheets and plates by saw or EDM cutting, they can also be punched.Like tungsten sheets, discs and squares with a thickness of less than 2.0 mm cannot be polished, and the surface is generally chemically cleaned. Our ground tungsten discs have good finish and flatness, and are often used in places that require good flatness, such as tungsten crucible covers.

Specifications for W disc and W square:

Dimensions for tungsten disc:

Tungsten with larger thickness will be named as tungsten cylinder, we can also provide tungsten cylinder per request. 

Pictures for W disc

• W Disc
• Tungsten Crucible Lids

Related Tungsten Products

Tungsten Plate, Tungsten Sheet, Tungsten Foil