Litz Wire Strand Size Recommended Frequency
| 28 AWG | 60 Hz - 1 KHz | 
| 30 AWG | 1 KHz - 10 KHz | 
| 36 AWG | 20 KHz - 50 KHz | 
| 38 AWG | 50 KHz - 100 KHz | 
| 40 AWG | 100 KHz - 200 KHz | 
| 42 AWG | 200 KHz - 350 KHz | 
| 44 AWG | 350 KHz - 850 KHz | 
| 46 AWG | 850 KHz - 1.4 MHz | 
| 48 AWG | 1.4 MHz - 2.8 MHz | 
Litz Wire will perform below and above the optimal frequencies listed above.
The chart is just for reference only.