Uploaded March 2024 | Updated September 2026, 3 weeks ago
I just paid high dollar for a lesson in Litz wire (litzendraht). Thought you might want to know (for free) what I learned (for $50).
INFORMATION ON LITZ ======================================
Frequency Range: Number of Strands / Per Strand AWG size (mm size / strand)
1.4 MHZ to 2.8 MHZ: 180/48, 300/48, 420/48, 675/48, 1100/48, 1725/48 (0.03 mm)
850 KHZ to 1.4 MHZ: 10/46, 20/46, 30/46, 40/46, 60/46, 66/46, 100/46, 175/46***, 270/46, 330/46, 420/46, 660/46, 924/46, 1050/46, 1162/46 (0.04 mm)
350 KHZ to 850 KHZ: 10/44, 20/44, 30/44, 40/44, 60/44, 100/44, 125/44, 160/44, 255/44, 405/44, 650/44, 1050/44 (0.05 mm)
200 KHZ to 350 KHZ: 16/42, 26/42, 40/42, 66/42, 105/42, 165/42, 270/42, 420/42, 660/42, 1050/42 (0.06 mm)
100 KHZ to 200 KHZ: 17/40, 27/40, 42/40, 66/40, 105/40, 108/40, 170/40, 270/40, 435/40, 700/40, 1100/40 (0.08 mm)
50 KHZ to 100 KHZ: 16/38, 25/38, 40/38, 66/38, 100/38, 162/38, 200/38, 260/38, 280/38, 420/38, 660/38, 1050/38, 1650/38 (0.10 mm)
20 KHZ to 50 KHZ: 16/36, 27/36, 41/36, 65/36, 105/36, 165/36, 265/36, 420/36 (0.13 mm)
10 KHZ to 20 KHZ: 13/33, 21/33, 32/33, 53/33, 82/33, 100/33, 150/33, 210/33, 329/33 (0.18 mm)
1 KHZ to 10 KHZ: 7/30, 11/30, 17/30, 26/30, 42/30, 65/30, 110/30 (0.25 mm)
60 HZ to 1 KHZ: 5/28, 7/28, 10/28, 18/28, 27/28, 42/28, 66/28 (0.31 mm)
Q factor (460–1500 KHz) vs copper
505 KHz 525 555
605 KHz 594 632
705 KHz 652 696
805 KHz 702 751
905 KHz 731 786
1005 KHz 748 804
1105 KHz 855 838
1205 KHz 760 820
1305 KHz 755 814
1405 KHz 741 799
1505 KHz 720 784
== Chapters ===
00:00 Intro/What is Litz Wire?
03:10 Pros of Litz
06:18 Cons 1 Soldering is a bear
09:50 Cons 2 Each size has a range
12:42 Cons 3 Confusing Types
13:22 Cons 4 Getting efficiencies
14:00 Summary
I just paid high dollar for a lesson in Litz wire (litzendraht). Thought you might want to know (for free) what I learned (for $50).
INFORMATION ON LITZ ======================================
Frequency Range: Number of Strands / Per Strand AWG size (mm size / strand)
1.4 MHZ to 2.8 MHZ: 180/48, 300/48, 420/48, 675/48, 1100/48, 1725/48 (0.03 mm)
850 KHZ to 1.4 MHZ: 10/46, 20/46, 30/46, 40/46, 60/46, 66/46, 100/46, 175/46***, 270/46, 330/46, 420/46, 660/46, 924/46, 1050/46, 1162/46 (0.04 mm)
350 KHZ to 850 KHZ: 10/44, 20/44, 30/44, 40/44, 60/44, 100/44, 125/44, 160/44, 255/44, 405/44, 650/44, 1050/44 (0.05 mm)
200 KHZ to 350 KHZ: 16/42, 26/42, 40/42, 66/42, 105/42, 165/42, 270/42, 420/42, 660/42, 1050/42 (0.06 mm)
100 KHZ to 200 KHZ: 17/40, 27/40, 42/40, 66/40, 105/40, 108/40, 170/40, 270/40, 435/40, 700/40, 1100/40 (0.08 mm)
50 KHZ to 100 KHZ: 16/38, 25/38, 40/38, 66/38, 100/38, 162/38, 200/38, 260/38, 280/38, 420/38, 660/38, 1050/38, 1650/38 (0.10 mm)
20 KHZ to 50 KHZ: 16/36, 27/36, 41/36, 65/36, 105/36, 165/36, 265/36, 420/36 (0.13 mm)
10 KHZ to 20 KHZ: 13/33, 21/33, 32/33, 53/33, 82/33, 100/33, 150/33, 210/33, 329/33 (0.18 mm)
1 KHZ to 10 KHZ: 7/30, 11/30, 17/30, 26/30, 42/30, 65/30, 110/30 (0.25 mm)
60 HZ to 1 KHZ: 5/28, 7/28, 10/28, 18/28, 27/28, 42/28, 66/28 (0.31 mm)
Q factor (460–1500 KHz) vs copper
505 KHz 525 555
605 KHz 594 632
705 KHz 652 696
805 KHz 702 751
905 KHz 731 786
1005 KHz 748 804
1105 KHz 855 838
1205 KHz 760 820
1305 KHz 755 814
1405 KHz 741 799
1505 KHz 720 784
== Chapters ===
00:00 Intro/What is Litz Wire?
03:10 Pros of Litz
06:18 Cons 1 Soldering is a bear
09:50 Cons 2 Each size has a range
12:42 Cons 3 Confusing Types
13:22 Cons 4 Getting efficiencies
14:00 Summary
