Application and Description：
Single-core polytetrafluoroethylene (PTFE) insulated MIL-W-25038/3 wire is used in engine compartment, fire detection circuit, flight key circuit, flight system and other aerospace applications. MIL-W-25038/3 (Thermazone III K) wire runs in extremely harsh environment and is used in key circuits of vibration and direct contact with flame. MIL-W-25038/3 (Thermazone IIIG) also meets or exceeds the requirements of MIL-W-25038/3 and provides these work at a lower cost in innovative independent systems.
Structure：
Conductor：12-18 AWG: 27% stranded nickel-plated copper conductor
20-22 AWG: 27% stranded nickel plated high strength copper alloy
Insulation： Thermazone IIIK:
Outer layer：Polytetrafluoroethylene/polyimide adhesive tape
Inner layer：Inorganic medium
Thermazone IIIG:
Outer layer：Polytetrafluoroethylene glass fiber
Inner layer：Inorganic medium
Sheath：Fused high performance polytetrafluoroethylene (PTFE) with sheath
Identification：Surface printing MIL-W-25038
Characteristics：
Rated temperature：-55°C +260°C
Rated voltage：600 volts
Color Code：MIL-STD-104
Size and weight：
|
|
M25038/3 THERMAZONE IIIK |
|
AWG |
Conductor stranding |
Conductor diameter
|
Wire diameter（Max）
|
wire diameter（Min）
|
Maximum resistance@
20°C OHMS/ MFT |
Weight 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 |
Conductor stranding |
Conductor diameter
|
wire diameter
（Max）
|
wire diameter
（Min）
|
Maximum resistance @
20°C OHMS/ MFT |
Weight 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 |
