目 录
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-24标注方法 4
-96标注方法 5
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参考文献 16
致谢 17
贴片元件的识别与焊接
XXX
南京信息工程大学电子与信息工程学院,江苏 南京
摘要:现代生活已离不开电子产品,我们每个人都必须掌握一定的电工操作技能。通过电工实****可使我们学会一些常用电工工具、仪表、开关元件等的使用方法及工作原理。接触电学知识,实现理论联系实际,并为后续课程的学****打下一定的基础。尤其是现代科技的不断进步,贴片元器件渐渐的开始取代直插式的元件,焊接技术是电工的基本操作技能之一,通过实****初步掌握这一技术的同时,培养自己在工作中耐心细致,一丝不苟的工作作风。
关键词:电子产品;贴片元件;识别;焊接
Welding and recognition of the patch element
XXX
Electronics and Information Engineering,NUIST,Nanjing ,China
Abstract:Modern life is cannot do without the electronic products, each of us must master certain skills of electrician. The electrician practice can enable us to learn to use some common methods of electrical tools, instrument, switch components and working principle. The contact electrical knowledge, realize the theory with practice, and follow-up courses to learn to lay a solid foundation for certain. Especially the development of modern technology, SMD components gradually began to replace the inline elements, welding technology is one of the basic skills of electrician, through the practice preliminary mastered this technology at the same time, develop their own in the work of patient and meticulous work style, be strict in one's demands
Key words:electronic product; SMD components; Distinguish; Welding
贴片电阻有矩形和圆柱形两种,其中矩形贴片电阻基体为黄棕色,其阻值代码用白色字母或数字标注
图 1-1
常见的有两种标注方法
-24标注方法
E-24标注法有两位有效数字,精度在±2%(-G),±5%(-J),±10%(-K),±20%(-M)
怎么看电阻的阻值
方法1. 常用电阻标注
XXY XX代表底数,Y代表指数
例如
470 = 47W
103 = 10kW
224 = 22
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