Hermetic Seal Performance

1. Insulation Resistance
	A. Typical values exceed 1 Gigaohm at 100 VDC.
	B. Volume resistance is always higher than surface resistance.
2. Dielectric Properties
	This is dependent on the glass material selected.

Below are typical values for some glasses:

1. Operating Temperature Range
	-65º to 200º C, tested by thermal shock from +200 to -65º air-to-air, with traditional sealing glasses. Up to 600°C with glass/ceramic.
2. Mechanical Strength
	It is possible to achieve seals capable of withstanding pressures in excess of 20,000 psi with proper design and appropriate qualification testing.
3. Hermeticity
	Tekna Seal can test seals to 1x10¯¹⁰ ATM• cc/sec Helium using a mass spectrometer. Actual leak rates are typically less than 1x10¯¹⁰.
4. Corrosion Resistance
	A compression seal can be fabricated with stainless steel or other corrosion resistant metal body, the limiting factor for corrosion resistance is often the nickel iron alloy used for pin material. Our glass/ceramic material will allow the use of corrosion resistant pin materials such as Hastelloy or 3xx Stainless Steel.

Ceramic to Metal Seals | Hermetic Feedthroughs | Hermetically Sealed Optical Windows
Glass-to-Metal Seals | Ceramic Seals | Lithium Battery Seal