38999 Series II Type Thermocouples

Thermocouple Contact & Tooling Charts

Milnec Interconnect Systems manufacturers a full offering of MIL-DTL-38999 Series II type high reliability thermocouple crimp contacts in the most popular thermocouple materials. By ordering thermocouple contacts separately, engineers can quickly make custom connector solutions to run power, signal, and thermocouples in one cable! In charts below you can find all the information required to order replacement thermocouple contacts for all existing MIL-DTL-38999 Series II connectors. Next to each contact is appropriate tooling information for required crimper, positioner, insertion and extraction tweezers.

Put simply, a thermocouple is a pair of wires of dissimilar metal that is connected at both ends. When the two wire junctions are exposed to different temperatures, an electrical potential is created between them that is almost directly proportional to the temperature difference. A voltage measuring instrument added to the circuit can then read the temperature. Thermocouples are made from a variety of specific alloys and are best suited for different applications depending on the intended temperature range, sensitivity, resistance to corrosion, magnetism, and cost. Because crimp connectors have removable contacts, the standard contacts can be substituted easily with thermocouples.

Additional Resources

38999 Series II Contact Data Sheets

• 38999 Series II Type Contacts (Power, Thermocouple, Coax)
• 38999 Series II Style Catalog (18.5 MB)

Thermocouple Contacts

Dimensions are in inches (mm) unless otherwise noted.