In the field of precision electronics, 42 AWG enameled copper wire represents the pinnacle of microfabrication. This ultra-fine enameled copper wire, with a nominal diameter of approximately 0.063 mm (finer than a human hair), is designed for high-density winding where space is limited and performance requirements are extremely high.
1. Dimensions and Electrical Properties
42 AWG corresponds to a wire diameter of 0.063mm (±0.002mm tolerance), a current carrying capacity of approximately 50mA, and a resistivity of 0.535 Ω/m (at 20°C).
Its copper purity is ≥99.97%, ensuring low-resistance transmission, while the insulating coating thickness is only 3-8μm, yet it can withstand dielectric strengths exceeding 500V.
Application：
1. Precision Sensors: Ideal for high-sensitivity inductors and electromagnetic sensors used in automotive and industrial automation.
2. Miniature Motors: Essential material for the ultra-fine windings of vibration motors in smartphones and medical devices.
3. Audio Equipment: Used in high-end guitar pickups, headphones, and miniature speakers to achieve specific impedance and tonal characteristics.
- Relays and Solenoids: Facilitates the manufacture of compact, low-power switching elements for PCB mounting.
We understand that even the slightest deviation within a precision range of 0.063 mm can lead to coil failure. Our manufacturing process focuses on pinhole-free insulation and diameter consistency to ensure your production yield remains consistently high.