Please help, I cannot remember. In IPC-D-275, the current carrying charts, I have it on page 10 in case it has changed, I do not remember what the horizontal axis is in Figure 3-4b represents. Is it current for the wieght of copper? I am trying to veryify the trace width for 200mA in .5oz copper external. Thanks in advance for help a trivial question. Scott ################################################################ DesignerCouncil E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE DesignerCouncil <your full name> To unsubscribe: SIGNOFF DesignerCouncil ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################