pcb-trace-current-capcity-testing/readme.md

tests

all traces will be 10mm wide - each track should handle around 6.5A of current @ 10c internal and 12.7A external all pcbs will be 1oz copper all pcbs will be 4 layer FR4 all other areas of the PCB will have a ground plane all traces will be 100mm after the start of the connector

atturbes to test

• VARIBLES (independent):

  • EXPOSED SOLDER MASK
    • thin layer of solder
    • thick layer of solder
  • VIA STICHED
  • GROUND PLANE(S)

• TRACES:

  • TOP LAYER
    • 12.7
  • MIDDLE LAYER
    • 6.5
  • TOP 2
    • 19.2
  • MIDDLE 2
    • 15
  • TOP AND BOTTOM
    • 25.4
  • 3 LAYER NO TOP
    • 25.7
  • 3 LAYER NO MIDDLE
    • 31.9
  • ALL LAYERS
    • 38.4

what to measure:

• 4 probe test for resistance
• current until trace has heated up by 10c above ambient