Re: Tables Required for 70Amp PCB's| 15 April, 1999
| Can anyone suggest or identifiy standards which tabulate the following: | | Conductor width, cross sectional and area conductor thickness for PCB's carrying up to 70 Amps? | Barry: Check:
1 Printed Circuits Handbook (Clyde F. Coombs) 2 Microelectronics Packaging Handbook (Tummala, Rymaszewski) 3 IPC-D-275 (now 2222, I think), figure 3-4 on page 10
Concerns I have are:
1 If using vias, how should they be designed, given that plated thickness is usually thinner and tougher to control. Earl where are you? 2 Etching 2oz copper a half inch wide (or whatever) doesn't seem to be a problem, but getting the current on and off the board seems more difficult.