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JIS standard Class 3

DIMENSIONS FOR MAGNET WIRE JIS STANDARD

JIS C-3211-1978

Class 3

Conductor

Minimum film thickness

(mm)

Maximum conductor resistance

(mm)

Maximum conductor resistance

(20℃) Ω/km

Diameter (mm)

Tolerance (mm)

0.020
0.025
0.03
0.04
0.05

0.06
0.07
0.08
0.09
0.10

0.11
0.12
0.13
0.14
0.15

0.16
0.17
0.18
0.19
0.20

0.21
0.22
0.23
0.24
0.25

0.26
0.27
0.28
0.29
0.30

0.32
0.35
0.37
0.40
0.45

0.50
0.55
0.60

±0.002
±0.002
±0.002
±0.002
±0.003

±0.003
±0.003
±0.003
±0.003
±0.003

±0.003
±0.003
±0.003
±0.003
±0.003

±0.003
±0.003
±0.003
±0.003
±0.003

±0.003
±0.004
±0.004
±0.004
±0.004

±0.004
±0.004
±0.004
±0.004
±0.005

±0.005
±0.005
±0.005
±0.005
±0.006

±0.006
±0.006
±0.008

0.002
0.002
0.002
0.002
0.003

0.003
0.003
0.003
0.003
0.003

0.003
0.004
0.004
0.004
0.004

0.005
0.005
0.005
0.005
0.005

0.005
0.005
0.006
0.006
0.006

0.006
0.006
0.006
0.006
0.007

0.007
0.007
0.007
0.007
0.007

0.008
0.008
0.008

0.028
0.034
0.040
0.052
0.064

0.075
0.085
0.097
0.107
0.118

0.128
0.139
0.149
0.159
0.169

0.181
0.191
0.202
0.212
0.222

0.232
0.243
0.255
0.265
0.275

0.285
0.295
0.305
0.315
0.327

0.347
0.377
0.397
0.429
0.479

0.531
0.581
0.632

69850
42780
28870
15670
10240

6966
4990
3778
2959
2381

1957
1636
1386
1193
1037

908.8
803.2
715.0
640.6
577.2

522.8
480.1
438.6
402.2
370.2

341.8
316.6
294.1
273.9
254.0

222.8
185.7
165.9
141.7
112.1

89.95
74.18
62.64


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