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 |
