FR4 thickness
|
Tolerance |
|
Thickness |
Class 2 ( L ) |
Cu thickness in micron |
Glassstyle |
|
mm |
% |
|
|
0,100 |
0,018 |
18 |
18-35-70 |
1 X 1633 |
0,150 |
0,025 |
16 |
18-35-70 |
1 X 1651 |
0,200 |
0,038 |
19 |
18-35-70 |
1 X 7628 |
0,250 |
0,038 |
15 |
18-35-70 |
2 X 2165 |
0,300 |
0,038 |
13 |
18-35-70 |
2 X 1651 |
0,360 |
0,051 |
14 |
18-35-70 |
2 X 7628 |
0,510 |
0,051 |
10 |
18-35-70 |
3 X 7628 |
0,710 |
0,063 |
9 |
18 |
4 X 7628 |
0,760 |
0,063 |
8 |
35-70 |
4 X 7628 |
|
|
|
|
|
0,80 |
0,10 |
12 |
18-35 |
4 X 7628 |
1,00 |
0,10 |
10 |
18-35 |
5 X 7628 |
1,20 |
0,13 |
11 |
18 |
6 X 7628 |
1,60 |
0,13 |
8 |
18-35-70 |
8 X 7628 |
2,00 |
0,18 |
9 |
18-70 |
10 X 7628 |
2,40 |
0,18 |
8 |
18-70 |
12 X 7628 |
3,20 |
0,23 |
7 |
18-35 |
16 X 7628 |
NB!
Thickness under or equal to 0,80mm is specified without copper.
Thickness over 0,80mm is specified with copper cladding on both sides.