Wirelaid Design Rules

The following Design Rules apply to the flat wire type:

  • F 14: 1,4 x 0,35 mm2 / Cross-section area Ø 0,49 mm2
Wirelaid Design Rules for flat wire type F 14
  Dimensions (Minimum) F 14 (350 x 1400 μm2)
LB Track width above wire 1.9 mm
A1 Distance of pitch between wires of separate potentials (considering the positioning of the pad) 1.9 mm + Iso distance*
A2 Distance of pitch between wires of same potentials 1.8 mm
Smax Max. length of wire between welding points 100 mm
Smin Min. length of wire between welding points 7.5 mm
IL Isolation distance between wire and inner layer Dependent on the specific stack-up of the customer, which we are pleased to create for you.
*Dependent on the thickness of copper layer according to the current Basic Design Guide of Würth Elektronik.
  Dimensions (Minimum) F 14 (350 x 1400 μm2)
L1 x B1 Pad size 3.5 x 3.0 mm²
  Dimensions (Minimum) F 14 (350 x 1400 μm2)
L2 x B2 Pad size for angled tracks 6.3 x 3.6 mm²
D Min. wire separation distance 0.8 mm