| Property |
Value |
| Gauge 19 Diameter (in) |
0.0359 in |
| Gauge 19 Diameter (mm) |
0.912 mm |
| Gauge 19 Turns of Wire (per inch) |
27.9 turns/in |
| Gauge 19 Turns of Wire (per cm) |
11.0 turns/cm |
| Gauge 19 Cross-Sectional Area (kcmil) |
1.29 kcmil |
| Gauge 19 Cross-Sectional Area (mm²) |
0.653 mm² |
| Copper Resistance (Ω/km or mΩ/m) |
26.42 mΩ/m |
| Copper Resistance (Ω/kft or mΩ/ft) |
8.051 mΩ/ft |
| NEC Copper Wire Ampacity (60°C) |
0 A |
| NEC Copper Wire Ampacity (75°C) |
0 A |
| NEC Copper Wire Ampacity (90°C) |
0 A |
| Fusing Current (10 s) |
70.0 A |
| Fusing Current (1 s) |
198.0 A |
| Fusing Current (32 ms) |
1100.0 A |
Frequently Asked Questions (FAQs) About 19 AWG Wire
What does AWG stand for?
AWG stands for American Wire Gauge, a standardized system for measuring wire sizes. The smaller the AWG number, the larger the wire diameter.
How does 19 AWG compare to 18 AWG?
19 AWG wire is smaller than 18 AWG, with a diameter of 0.912 mm compared to 1.024 mm for 18 AWG. It has a lower ampacity (0 A at 90°C vs. 14 A for 18 AWG) and higher resistance.
What applications are suitable for 19 AWG wire?
19 AWG wire is typically used for extremely low-current applications, such as fine electronics, hobby projects, or small signal wiring, due to its limited ampacity.
What happens if the fusing current is exceeded?
If the fusing current is exceeded (e.g., 70 A for 10 seconds in 19 AWG), the wire will overheat and melt, potentially causing a fire hazard or circuit failure.
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