Copper foil coils
Mundorf
Copper foil coils
Mundorf VLCU12-8.2 Copper Foil Coil, 8.2 mH | DCR 0.63 Ω
Free shipping
8.2 mH
0.63 Ω
2 pieces in stock
Nov 3.
Mundorf
Copper foil coils
Mundorf CFC10-3.3 Copper Foil Coil, 3.3 mH | DCR 0.27 Ω | ±2%
Free shipping
3.3 mH
0.27 Ω
2 pieces in stock
Nov 3.
Mundorf
Copper foil coils
Mundorf VLCU12-10 Copper Foil Coil, 10 mH | DCR 0.71 Ω
Free shipping
10 mH
0.71 Ω
2 pieces in stock
Nov 3.
Mundorf
Copper foil coils
Mundorf CFC10-3.9 Copper Foil Coil, 3.9 mH | DCR 0.28 Ω | ±2%
Free shipping
3.9 mH
0.28 Ω
2 pieces in stock
Nov 3.
Mundorf
Copper foil coils
Mundorf CFC10-5.6 Copper Foil Coil, 5.6 mH | DCR 0.36 Ω | ±2%
Free shipping
5.6 mH
0.36 Ω
2 pieces in stock
Nov 3.
Mundorf
Copper foil coils
Mundorf CFC10-6.8 Copper Foil Coil, 6.8 mH | DCR 0.41 Ω | ±2%
Free shipping
6.8 mH
0.41 Ω
2 pieces in stock
Nov 3.
Mundorf
Copper foil coils
Mundorf CFC10-8.2 Copper Foil Coil, 8.2 mH | DCR 0.47 Ω
Free shipping
8.2 mH
0.47 Ω
2 pieces in stock
Nov 3.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7305 | 0.25 mH | 0.11 Ω | 2% | 14 AWG | Copper Foil Coil
0.25 mH
0.11 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7307 | 0.27 mH | 0.12 Ω | 2% | 14 AWG | Copper Foil Coil
0.27 mH
0.12 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7749 | 0.61 mH | 0.27 Ω | 2% | 16 AWG | Copper Foil Coil
0.61 mH
0.27 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7755 | 0.63 mH | 0.27 Ω | 2% | 16 AWG | Copper Foil Coil
0.63 mH
0.27 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7760 | 0.65 mH | 0.28 Ω | 2% | 16 AWG | Copper Foil Coil
0.65 mH
0.28 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7766 | 0.68 mH | 0.29 Ω | 2% | 16 AWG | Copper Foil Coil
0.68 mH
0.29 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7768 | 0.69 mH | 0.29 Ω | 2% | 16 AWG | Copper Foil Coil
0.69 mH
0.29 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7770 | 0.70 mH | 0.30 Ω | 2% | 16 AWG | Copper Foil Coil
0.7 mH
0.3 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-8291 | 0.28 mH | 0.13 Ω | 2% | 14 AWG | Wax Coil
0.28 mH
0.13 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-8009 | 0.07 mH | 0.05 Ω | 2% | 12 AWG | Impregnated Copper Foil Coil
0.07 mH
0.05 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-8598 | 0.65 mH | 0.27 Ω | 2% | 16 AWG | Wax Coil
0.65 mH
0.27 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-8586 | 0.52 mH | 0.25 Ω | 2% | 16 AWG | Impregnated Copper Foil Coil
0.52 mH
0.25 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7752 | 0.62 mH | 0.26 Ω | 2% | 16 AWG | Cross Coil
0.62 mH
0.26 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-8588 | 0.54 mH | 0.26 Ω | 2% | 16 AWG | Impregnated Copper Foil Coil
0.54 mH
0.26 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-8591 | 0.58 mH | 0.27 Ω | 2% | 16 AWG | Impregnated Copper Foil Coil
0.58 mH
0.27 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-7764 | 0.67 mH | 0.28 Ω | 2% | 16 AWG | Cross Coil
0.67 mH
0.28 Ω
Orderable
Dec 22.
Jantzen Audio
Copper foil coils
Jantzen Audio 000-8010 | 0.1 mH | 0.05 Ω | 2% | 12 AWG | Wax Coil
0.1 mH
0.05 Ω
Orderable
Dec 22.
Read more: Copper foil coils
A copper foil inductor is wound in layers from flat copper strip. At the same inductance it offers lower DCR than a round-wire coil, and high-frequency skin effect has less influence on it.
You gain most in the bass section, where every tenth of an ohm of series resistance costs bass control. Given its size and price it is usually found in high-end crossovers, where the benefits of an air core are wanted with as little loss as possible.