Round
Litz
Litz
constructions
Types
1
through
6
are
all
designed
to be
round
and
vary
from a
simple
bunch
of
conductors
(Type 1) to
complex
designs
utilizing
multiple
cores
and
several
manufacturing
operations
(Type
6).
The
smaller
constructions
of
Litz
Types
1
and
2
are
typically
used in
High
Q
circuitry,
such as
toroidal
coils
and
transformers.
The
larger
Type
2
and
3
Litz
designs
have
greater
current
carrying
capacities
necessary
for
high
frequency
power
supply,
inverter
and
grounding
applications.
Type
4, 5
and
6
Litz
constructions
all
utilize
at
least
one
inert
core
and
are
used
primarily
in
tuning
circuitry
for
high
power
radio
transmitters.
Direct
Current
Equivalent
Circular
Number
of
AWG
of
Film
Construction
Outer
Nominal
Nominal
Resistance
Wire
Coating1
Insulation2
AWG
Mil
Area
Wires
Type
OD
LBS./1000
FT.
Construction
OHM/1000
FT^
RECOMMENDED OPERATING FREQUENCY - 60 HZ TO 1 KHZ
24
476
3
28
S
1
-
.027
1.49
22.570
3/28
22
794
5
28
S
1
-
.035
2.49
13.540
5/28
20
1112
7
28
S
1
-
.042
3.49
9.670
7/28
18
1588
10
28
S
1
-
.050
4.99
6.770
10/28
16
2700
17
28
S
1
SN
.065
8.68
3.980
17/28
14
4129
26
28
S
1
SN
.080
13.23
2.600
26/28
12
6670
42
28
S
1
SN
.102
21.28
1.610
42/28
10
10480
66
28
S
2
SN
.140
34.02
1.060
3X22/28
8
16674
105
28
S
2
SN
.177
54.01
.660
3X35/28
6
26202
165
28
S
2
SN
.222
86.59
.420
5X33/28
4
42240
266
28
S
2
DN
.285
141.87
.260
7X38/28
2
66696
420
28
S
2
DN
.431
227.39
.170
5X3X28/28
1/0
105602
665
28
S
2
SNB
.537
366.00
.110
7X5X19/28
2/0
133392
840
28
S
5
SNB
.657
480.00
.084
6(5X28/28)
3/0
171504
1080
28
S
5
SNB
.787
634.00
.065
9(5X24/28)
4/0
217238
1368
28
S
5
SNB
.941
828.00
.051
12(3X38/28)
RECOMMENDED OPERATING FREQUENCY - 1 HZ TO 10 KHZ
35.980
.95
.022
-
1
S
30
3
300
26
3/30
21.590
1.58
.028
-
1
S
30
5
500
24
5/30
15.420
2.21
.033
-
1
S
30
7
700
22
7/30
9.810
3.47
.045
-
1
S
30
11
1100
20
11/30
6.350
5.52
.055
SN
1
S
30
17
1700
18
17/30
4.150
8.38
.064
SN
1
S
30
26
2600
16
26/30
2.570
13.48
.082
SN
1
S
30
42
4200
14
42/30
1.710
21.21
.112
SN
2
S
30
65
6500
12
5X13/30
1.010
35.75
.145
SN
2
S
30
110
11000
10
5X22/30
.660
55.03
.191
-
2
H
30
168
16800
8
7X24/30
.430
84.83
.237
-
2
H
30
259
25900
7
7X37/30
.420
87.13
.240
-
2
H
30
266
26600
6
7X38/30
.270
138.27
.300
-
2
H
30
413
41300
4
7X59/30
.210
171.96
.338
-
2
H
30
525
52500
3
7X75/30
.170
217.81
.380
-
2
H
30
665
66500
2
7X95/30
.140
272.95
.421
DN
2
H
30
805
80500
2
7X115/30
.090
435.00
.631
SNB
2
S
30
1250
125000
1/0
5X5X50/30
.083
486.00
.667
SNB
5
S
30
1350
135000
2/0
6(5X45/30)
.057
697.00
.794
SNB
5
S
30
1950
195000
3/0
6(5X5X13/30)
.045
916.00
.981
SNB
5
S
30
2520
252000
4/0
6(5X3X28/30)
1
S =
single-film
coating
thickness
^
Not
for
specification
purposes.
H =
heavy-film
coating
thickness
2
SN =
single
nylon
serving
DN =
double
nylon
serving
SNB
=
single
nylon
braid
PVC
=
extruded
polyvinylchloride
All
measurements
are
in
inches
unless
otherwise stated.
132
