0.2mmx66 Class 155 180 Stranded Copper Litz Wire

(Single-strand wire is used as the sample) Take 3 samples with a length of about 15cm from the same spool, and immerse one end of the sample with a length of about 4cm into the solder (tin 50, lead 50) tank specified in Table 1, and immerse them for the time in Table 1. After tinning, take it out and observe the soldering condition. The deep part should be completely soldered (the upper end of the immersed part is 10mm away from the test object), check whether the soldering tin is evenly attached, and there is no carbonized black shavings attached; the diameter should be less than 0.10mm When it is a conductor, use a winding tool to immerse the sample coil for about 50mm, and then determine the center of about 30mm.