31 AWG wire specifications: 0.2268 mm diameter, 0.0404 mm² area. Resistance, weight, and common uses.
| Diameter | 0.2268 mm · 0.008928" · 8.93 mils |
| Cross-sectional area | 0.0404 mm² · 80 circular mils |
| Resistance (copper, 20°C) | 426.8788 Ω/km · 130.1127 Ω/1000ft |
| Resistance (aluminum, 20°C) | 656.1652 Ω/km · 199.9992 Ω/1000ft |
| Ampacity — copper 60°C | — A |
| Ampacity — copper 75°C | — A |
| Ampacity — copper 90°C | — A |
| Ampacity — aluminum 75°C | — A |
| Weight (copper) | 0.362 kg/km · 0.243 lbs/1000ft |
| Weight (aluminum) | 0.109 kg/km · 0.073 lbs/1000ft |
| Closest metric size | 0.0 mm² |
| Skin depth at 60 Hz | 8.531 mm |
| Type | Temperature | Description |
|---|---|---|
| PVC | 60-105°C | General purpose insulation |
| Teflon (PTFE) | 200°C | High temperature applications |
| Silicone | 200°C | Flexible, high temperature |
| Enamel | 155-220°C | Magnet wire coating |