IPC-TM-650 EN 2022 试验方法1.pdf - 第590页
T able 1 Equivalent Resisti vity V alues For Copper T able 2 Density and T emperatu re Coeffic ient of Resistance for Elect rical Materials IPC-TM-650 Page 3 of 3
IPC-TM-650
Page 2 of 3
Table 1 Equivalent Resistivity Values For Copper
Table 2 Density and Temperature Coefficient of
Resistance for Electrical Materials
IPC-TM-650
Page 3 of 3
Page 1 of 5