Products Printed circuit boards Standard PCBs:

Double-sided

Solid materials


Standard

Material type

FR4 (Tg 135 °C), CEM3

FR4 (Tg 150°C), FR4 (Tg 170 °C), FR5

Thickness without the basic copper

FR4

0.8mm ± 0.10mm

1.0mm ± 0.10mm

1.2mm ± 0.13mm

1.5/1.6mm ± 0.13mm

2.0mm ± 0.18mm

2.4mm ± 0.18mm



CEM
3
1.5mm ± 0.13mm

FR
4
0.5mm ± 0.06mm

3.2mm ± 0.23mm

Basic copper
18µm; 35µm
70µm; 105µm, 140µm, 175µm
Thickness tolerance including basic copper
MIL-S-13949H tolerance,
last edition, grade II
IPC 4101A grade B

Material characteristics

Permittivity er at 1MHz

Dielectric loss tand at 1MHz
Resistance to current leakage CTI

Electrical strength (min.)

Fire-retardant class

4.6 - 4.9

0.019–0.027

250 degree
45kV/mm

UL 94V-0

Min. final copper depending on basic copper and PCB thickness


Standard

Final copper /

Basic copper /

PCB thickness

43µm / 18µm / 0.8 ÷ 2.0mm

60µm / 35µm / 0.8 ÷ 3.2mm"

95µm / 70µm / 0.8 ÷ 2.0mm

130µm / 105µm / 0.8 ÷ 2.0mm

130µm / 105µm / 2.1 ÷ 3.2mm

165µm / 140µm / 0.8 ÷ 2.0mm

165µm / 140µm / 2.1 ÷ 3.2mm

200µm / 175µm / 0.8 ÷ 2.0mm

200µm / 175µm / 2.1 ÷ 3.2mm

Tolerance

±10%

±10%