元器件相關：

https://www.bilibili.com/video/BV1v54y1n7ot/

https://www.yageo.com/zh-CN/Download/Index/technical_documents?target=target_title#r_chip

https://ds.murata.co.jp/simsurfing/mlcc.html?lcid=zh-cn

https://ds.murata.co.jp/simsurfing/index.html?lcid=zh-cn

https://easydatasheet.cn/

https://www.indiemicro.com/cn/

https://www.onsemi.com/

https://www.elecfans.com/about/sitemap.html

https://mp.weixin.qq.com/s?__biz=MzA5NzI4MDAzMw==&mid=2651456539&idx=3&sn=fadd5f6d7bb829ab8f2012fc072575c2&chksm=8b5ded55bc2a64436d25fde61e8f2b167cb1e2ddb89d956d70251fc0030a423095ef25a743fd&scene=132#wechat_redirect

https://mp.weixin.qq.com/s?__biz=MzA5NzI4MDAzMw==&mid=2651434166&idx=1&sn=1277f753e25ba58ada2fd4542dd2aba1&chksm=8b5e45f8bc29cceee7e0eff6de9056bec36d50db31b2beaa1a95f09bd3e45224b7ea7c3a268d&scene=178&cur_album_id=2157302137989529602#rd

https://www.eda365.com/forum.php

https://m.elecfans.com/article/760885.html

https://wenku.baidu.com/view/e794d21d75232f60ddccda38376baf1ffd4fe31b.html?_wkts_=1687660426115&bdQuery=SBL%E8%BD%A6%E7%81%AF

allegro相關：

https://blog.csdn.net/transistor0/article/details/16885979?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162884448416780264055811%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=162884448416780264055811&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~sobaiduend~default-2-16885979.pc_search_similar&utm_term=package+to+place+keepout&spm=1018.2226.3001.4187

https://www.bilibili.com/video/BV1ma4y1i7yE/?p=2&;vd_source=9e5cf6dfd07cb14c0a0a3c382ba00c41

https://www.mr-wu.cn/

https://wenku.baidu.com/view/24c71a7ab42acfc789eb172ded630b1c59ee9b2a.html?fr=search-1-wk_es_paddle-income3&fixfr=W5CQWZbtYl3WqgH2uUin6w%3D%3D&_wkts_=1687658034654

https://zhuanlan.zhihu.com/p/352828082

https://www.csdn.net/?spm=1001.2101.3001.5359

https://www.eda365.com/forum-2-1.html

https://bbs.eetop.cn/forum-300-1.html

http://forum.eepw.com.cn/thread/339111/1

https://mp.weixin.qq.com/s?__biz=MzU2MjU4NzQ1MA==&mid=2247483951&idx=1&sn=57f6dbe37a7d638374719e80bf68ce54&chksm=fc66707acb11f96c9b454a2016312279150f432beadfc2e8ef68b5a1afa9fbf97c8e1a06d76c&scene=21#wechat_redirect