1.http://www.alldatasheet.com 2.www.datasheet4u.net 3.http://www.datasheetcatalog.com 4.http://www.datasheet5.com
3D下载地址:
http://www.3dcontentcentral.cn/
封装下载地址:
https://www.snapeda.com/home/ https://componentsearchengine.com/index.html AD官网库（新） https://designcontent.live.altium.com/#UnifiedComponents AD官网库（旧）-适用于含AD10在内的之前的版本 https://techdocs.altium.com/display/ADOH/Download+Libraries