Series HF

A PTFE-lined, stainless steel tube is swaged over multiple, usually PTFE, insulated, singlecore copper and/or thermocouple-material wires to make a continuous wire, high-density, sealed feedthrough tube. These are used for thermocouples, resistance thermometers and low voltage instrumentation. The sealed tube assembly is usually mounted in a series PF or MF feedthrough. Series HF feedthroughs are manufactured with customer-specified wire lengths.

Epoxies and other sealants are not used in the construction of HF feedthroughs. They are suitable for use where outgassing is not permitted.


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• Allows multiple sensor wires to pass through a fitting for a single element
• Sealed tubes with continuous, multiple, insulated conductors
• Stainless steel tube (316L) is sealed without potting, epoxies or glues
• Copper or thermocouple-material wires types J, K, T & N
• Max. current rating 500mA at 100Vdc
• Pressure range: Vacuum to 5,000 psi with low leak rate
• 4 tube sizes for 12, 24, 40 or 60 size 24AWG Cu or thermocouple wires
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Spectite Inc., PO Box 917, Hillside, IL60162, USA.
Tel. 708 449 4444, Toll Free 877 248 0777, Fax. 708 449 4445
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