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    MIL-W-25038/3

    Application and Description

    These PTFE insulated single-core MIL-W-25038/3 cables are used in such aerospace applications as engine compartments, fire detection circuits, flight-critical circuits, and fly-by-wire systems. MIL-W-25038/3 (Thermazone IIIK) wires are designed for critical circuit applications where wires must operate in extremely harsh environments, under vibration, and with direct flame exposure. MIL-W-25038/3(Thermazone IIIG) wires also meet or exceed the requirements of MIL-W-25083/3, but provide this performance at a lower cost through the use of an innovative insulation system.

    Construction

    Conductor 12-18 AWG: Stranded 27% Nickel coated copper conductor
    20-22 AWG: Stranded 27% Nickel coated high-strength copper alloy conductor
    Insulation  
    Thermazone IIIK  
    Outer PTFE/polyimide tape fluid barrier.
    Inner Inorganic dielectric
    Thermazone IIIG  
    Outer PTFE-coated fiberglass fluid barrier.
    Inner Inorganic dielectric
    Jacket Fused High-Performance Polytetrafluoroethylene (PTFE) Tape Jacket
    Identification Surface printed per MIL-W-25038

    Characteristics

    Temperature Range -55°C +260°C
    Voltage Rating 600 volts
    Color Code MIL-STD-104

    Dimensions and Weight

    ? M25038/3 THERMAZONE IIIK
    AWG SIZE CONDUCTOR STRANDING CONDUCTOR DIAM. MAX. O.D. MIN. O.D. MAX. RESISTANCE @ 20°C OHMS/MFT APPROX LBS/MFT
    ? ? IN MM IN MM IN MM ? ?
    22 19/34 0.031 0.787 0.054 1.372 0.040 1.016 23.700 4.2
    20 19/32 0.040 1.016 0.083 2.108 0.048 1.219 15.300 9.00
    18 19/30 0.050 1.270 0.097 2.464 0.065 1.651 8.500 10.5
    16 19/29 0.056 1.422 0.103 2.616 0.068 1.727 6.660 13.5
    14 19/27 0.072 1.829 0.123 3.124 0.097 2.464 4.320 19.5
    12 19/25 0.090 2.286 0.142 3.607 0.100 2.540 2.780 28.0
    ? M25038/3 THERMAZONE IIIG
    AWG SIZE CONDUCTOR STRANDING CONDUCTOR DIAM. MAX. O.D. MIN. O.D. MAX. RESISTANCE @ 20°C OHMS/MFT APPROX LBS/MFT
    ? ? IN MM IN MM IN MM ? ?
    22 19/34 0.031 0.787 0.075 1.905 0.055 1.397 23.700 4.2
    20 19/32 0.040 1.016 0.083 2.108 0.048 1.219 15.300 9.0
    18 19/30 0.050 1.270 0.097 2.464 0.065 1.651 8.500 10.5
    16 19/29 0.056 1.422 0.103 2.616 0.068 1.727 6.660 13.5
    14 19/27 0.072 1.829 0.123 3.124 0.097 2.464 4.320 19.5
    12 19/25 0.090 2.286 0.142 3.607 0.100 2.540 2.780 28.0
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