Cylindrical Types

Product Description

Our specialists have in-depth experience in the production of hermetically sealed cylindrical quartz components, which are used as time control devices.

Cylindrical glass-to-metal quartz seals are an electronic package for tuning fork oscillators and high frequency quartz crystal. The product consists of a cap and base with two lead pins. Cylindrical types are used in all-weather applications (requiring properties such as air-tightness and electrical insulation), thereby placing a high demand on the hermetic seal.


Cylindrical types have the following advantages:
  • Effective protection against moisture
  • Excellent electrical insulation
  • High resistance to corrosion
  • High reliability
  • Tin/copper coatings are environmentally friendly and easy-to-mount
  • In addition to conventional holders, lead-free quartz holders can also be mass produced


Cylindrical types are often used for, but not limited to, applications such as:
  • Mobile equipment
  • Personal computers
  • Watches
  • Vehicle equipment
  • Remote controls

Technical Details


Cylindrical types are hermetically sealed with our glass-to-metal technology. For more information about our GTMS technology, please click on this page. Alternatively, you can find out about our GTMS products from the the GTMS brochure on our download page.

Features / Specifications
Material and Finish
EYELET Alloy 42
LEAD Kovar®
GLASS Borosilicate glass
FINISH Soldering Plating
High M.P. Solder plating
Lead Free Solder plating

  • Hermetic, thin-metal packages are suitable for mountable surface designs.
  • Extremely precise assembly techniques enable GTMS to be created with diameters between φ 1.2 and φ 3.0 mm (after cap installation)
  • Smallest diameter φ 0.96mm

Forms of Supply and Product Packaging

Standard forms of supply are available. Please contact our sales department if you have any special requests concerning supply and packaging.


All our glass-to-metal seal products are manufactured in our ISO 9001/14001 certified plant, the quality assurance standard of ISO. For more information, please refer to our quality assurance processes.
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