Mechanical tolerances

Mechanical tolerances

Mechanical and electrical tolerances

Contour tolerances:

  • Contour milling +/-0.1mm

Hole tolerances:

  • NPTH holes: +/- 0.05mm
  • PTH holes: +/- 0.076mm

Electrical tolerance

  • Controlled impedance: +/- 10%

Tolerance for scoring cut (V-cut)

If you have scoring on the outline of the printed circuit board, the following tolerances apply:

  • Notch angle: 30° 45° 60° 90°
  • Thickness of the central blade: 0.4 +/ -0.1mm
  • Offset from the scoring line: +/- 0.025 mm
  • Offset from the contour line: +/- 0.15 mm
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Printed circuit board construction

layers. PCBs mechanically support electronic components using pads for Mechanical tolerances bonding the component terminals and electrically connect them using traces of one or more layers of copper sheets laminated on and/or between layers of conductive substrate sheets. A printed circuit board can have several layers of copper which

Methods of using the printed circuit board

circuits. Technology has penetrated more and more areas of our lives and required modernization, and the printed circuit through its tolerances Mechanical continuous improvement was one of the first aids that allowed this modernization. The smaller and smaller dimensions and the flexibility of the printed circuit board made in recent years have greatly

Printed circuit board silkscreen

and text on a circuit board's PCB are usually printed with a non-conductive permanent epoxy ink. The color is usually white, although other colors are available: yellow, tolerances Mechanical black, blue, red. Screen printing is used to render useful information on the PCB board that can help users during assembly. It is used to mark

Contact:
SADELEC PCB
Address:
Moldova Street no. 15,
Pașcani, Postal code 705200
 

Phone:
0722480131
0726349074
 

E-mail:
contact@sadelec-pcb.com
cad@sadelec-pcb.com