1.一种低镉银钎料,其特征在于,按质量百分数由以下组分组成:13.5%~16.0%的Ag,45.0%~49.0%的Cu,0.05%~0.13%的Cd,0.001%~0.005%的In,0.001%~0.005%的Ga,0.001%~0.005%的Sn,0.001%~0.005%的RE,余量为Zn,所述的RE为La和/或Ce。