J
John Larkin
Guest
There are wire and pcb trace fusing calculators online, and in the
Saturn software and such. They use the Onderdonk or Preeces
equations.
Onderdonk assumes no heat loss, so in theory 1 mA will melt #10 wire
if you wait long enough. Preeces equation (from 1884!) assumes heat
loss from a round wire, presumably not insulated.
A PCB trace is wide and thin and loses heat to air and adjacent planes
(microstrip) or to two planes (stripline). Does anyone know of a
calculator for real-life PCB traces?
Saturn software and such. They use the Onderdonk or Preeces
equations.
Onderdonk assumes no heat loss, so in theory 1 mA will melt #10 wire
if you wait long enough. Preeces equation (from 1884!) assumes heat
loss from a round wire, presumably not insulated.
A PCB trace is wide and thin and loses heat to air and adjacent planes
(microstrip) or to two planes (stripline). Does anyone know of a
calculator for real-life PCB traces?