MTC

Supported Applications

The Omega MTC series consists of crimp-style thermocouple pin and socket contacts designed for use with multi-pin connector assemblies. These precision CNC-machined components provide a means to join multi-wire thermocouple cables, enabling the rapid connection and dismantling of apparatus without handling individual sensors. The design is intended for integration into systems utilizing Omega Multipair Extension Cables.

While these specific contacts do not carry a MIL spec number, they are engineered to meet the performance requirements of MIL-C 26500E. Consequently, MTC contacts are intermateable with connectors built to the MIL-C 26500 standard. The series supports thermocouple types J (Iron/Constantan), K (CHROMEGA®/ALOMEGA®), T (Copper/Constantan), E (CHROMEGA®/Constantan), and N (OMEGA-P®/OMEGA-N®).

Operating Conditions & Performance

The MTC contacts are manufactured from thermocouple alloy materials to ensure compatibility with the connected sensor elements. The associated connector system is designed to withstand ambient temperatures up to 392°F (200°C), contributing to extended service life in elevated temperature environments.

To maintain signal integrity, the design utilizes a combination of resilient and rigid dielectric insulators intended to eliminate internal air voids. This construction prevents the passage of air and moisture into or through the connector assembly. The contacts feature color-coding for easy identification during installation and maintenance.

Configuration Options

The MTC series offers a range of alloy-specific pins (male) and sockets (female), each identified by specific model codes, coding colors, and letters corresponding to the thermocouple type. The available configurations include:

• Type J: Iron (+) contacts coded BLK M; Constantan (-) contacts coded YEL N.
• Type K: CHROMEGA® (+) contacts coded WHT P; ALOMEGA® (-) contacts coded GRN R.
• Type T: Copper (+) contacts coded RED C; Constantan (-) contacts coded YEL N.
• Type E: CHROMEGA® (+) contacts coded WHT P; Constantan (-) contacts coded YEL N.
• Type N: OMEGA-P®(+) contacts coded Orange OP; OMEGA-N®(-) contacts coded Blue ON.

In addition to alloy-specific contacts, the series includes Gold-Plated (Uncompensated) Copper options. These are identified by color bands: Pins feature BLUE, RED, VIOLET bands, while Sockets feature RED, BLUE, BLK bands.

Key Product Differences

The MTC contacts utilize a crimp-type attachment method and require specific tools for proper assembly. The series includes the following accessories:

• MTC-IT: Insertion tool required to insert contacts into the connector body.
• MTC-RT: Removal tool designed for extracting contacts.
• MTC-CT: Heavy Duty Crimping Tool necessary for crimping and assembling connectors properly; MS standard assembly tools are recommended with first purchase.

The series also offers sealing plugs (model MTC-HP) to cover unused positions within the connector body. Grommets are available upon consultation with Sales. When ordering, bodies must be selected in mating pairs: Style MC mates with both style FF and style FC backshells. Backshell cable clamps are recommended for each cord-style connector.