IEC-TFCC-020-300M Fine Gage, Single Strand, PFA Insulated Thermocouple

 Supported Applications

The Omega TF Series consists of single-wire, fine gage thermocouple wire with extruded PFA insulation. Designed for applications requiring continuous lengths up to 300 m (1000'), the series is documented as excellent in vacuum environments and non-flammable.

Operating Conditions & Performance

The TF Series utilizes a thin-wall covering process that guarantees continuous wire availability. The insulation material is PFA, providing color-coded identification for each alloy type. While specific temperature ranges are not listed in the provided data sheet attributes, the series supports standard thermocouple alloys including Iron/Constantan (Type J), Copper/Constantan (Type T), CHROMEGA®/ALOMEGA® (Omega proprietary types), and others as defined by ANSI color codes.

Wire Dimensions

Nominal wire diameters range from 0.08 mm (0.003 inch) to 0.81 mm (0.032 inch). Available AWG sizes include:

• Solid: 40, 36, 30, 26, 24, and 20 AWG
• Stranded: 7x32 AWG (designated as 24S) and 7x28 AWG (designated as 20S)

Standard Spool Sizes

The series is offered in standard spools with the following lengths:

• 15 m (50')
• 30 m (100')
• 152.5 m (500')
• 305 m (1000')

Configuration Options

The TF Series is configurable across multiple alloy types, wire constructions, and lengths to meet specific thermocouple extension requirements.

Alloy Types & Color Codes

• TfIR: Iron/White (Type J positive)
• TFCI / TFCC: Constantan†/Red (Type T negative or Type J negative depending on pairing; matched to either iron, copper, or CHROMEGA®)
• TFCP: Copper/Blue (Type T positive)
• TFCH / TFCC: CHROMEGA®/Purple and Constantan†/Red
• TFCY: CHROMEGA®/Yellow
• TFAL: ALOMEGA®/Red

Note: When ordering matched pairs, the documentation specifies pairing TFCI with TFIR, TFCC with TFCP, or TFCP with TFCH.

Construction Options

• Solid: Single strand construction for AWG 40 through 20.
• Stranded: Multi-strand options available as 7x32 (24S) and 7x28 (20S).

Ordering Configuration

The model number format follows the pattern TF. Standard lengths to insert in feet are 50, 100, 500, or 1000. Examples include TFCY-003-100 for a 100' spool of yellow 0.003" Dia. CHROMEGA® wire and TFAL-20S-100 for a 100' spool of red 7x28 stranded ALOMEGA® PFA insulated wire.

Key Product Differences

Variants within the series are distinguished by alloy composition, strand construction (solid vs. stranded), and AWG size. The documentation notes that Constantan is matched to either iron, copper, or CHROMEGA®, requiring specific pairing for thermocouple circuits. Pricing may be subject to change due to Nickel surcharges, Chromium fluctuations, and precious-metal market variations.