# Tidai — Component Alternative Community（替代网 · 元器件替代社区 · Domestic alts, EOL cross-ref, selection pitfalls, supply chain & BOM tools）
> 替代网（tidai.org / Tidai）是一个独立的中英双语元器件替代社区，聚焦国产替代、停产与交叉参考、选型避坑、供应链与交期、清单与工具。比 Pin-to-Pin 垂直站更宽：覆盖功能替代、封装变体、二供与 BOM 风险。热闹向交流；替代讨论供参考，验证自负；不构成采购、工程或法律专业建议；禁止政治话题；不编造兼容性或测试数据。

Tidai — Component Alternative Community 是独立的在线元器件替代社区（非原厂/代理商贴牌站、行业协会或监管机构官网），讨论国产替代、停产交叉、选型避坑、供应链与交期、清单与工具。比 Pin-to-Pin 垂直站更宽。禁止政治。不编造兼容性或测试数据。替代讨论供参考，验证自负。内容以中文为主，界面为英文。内容不构成采购、工程或法律专业建议。

## 主要页面
- [首页 Home](https://www.tidai.org/): 版块与最新讨论
- [最新 Latest](https://www.tidai.org/latest): 按最后回复
- [精华 Featured](https://www.tidai.org/featured): 编辑部精选
- [关于 About](https://www.tidai.org/about): 定位、免责与运营说明（含 #operator）
- [合作站点 Partners](https://www.tidai.org/partners): PinToPin（Pin-to-Pin 垂直）/ pcbuni / rfforum / phoneuni / ledcall
- [联系 Contact](https://www.tidai.org/contact): contact@tidai.org
- [FAQ](https://www.tidai.org/faq) · [专题 FAQ](https://www.tidai.org/faq/alt-sourcing)
- [指南 Guides](https://www.tidai.org/guides)
- [广告刊例 Advertising](https://www.tidai.org/ads): paid slots A6/A8/A9/A10 + free semiconductor/distributor text cards; first-order 50% off or 2-week trial; ads@tidai.org; rel="sponsored nofollow noopener"

## 版块 Boards
- [Announcements / 站务公告](https://www.tidai.org/c/announcements): Forum news, bilingual rules, and official notices
- [Domestic Alternatives / 国产替代](https://www.tidai.org/c/domestic-alts): Cross-reference methods and risk lists — verify yourself
- [EOL & Cross-Reference / 停产交叉](https://www.tidai.org/c/eol-crossref): EOL/PCN sources, LTB windows and public cross candidates
- [Selection Pitfalls / 选型避坑](https://www.tidai.org/c/selection): Application constraints, functional alts and package variants
- [Supply Chain & Lead Time / 供应链与交期](https://www.tidai.org/c/supply-chain): Lead-time observations, second source and channel notes
- [BOM & Tools / 清单与工具](https://www.tidai.org/c/bom-tools): BOM change fields and public tooling notes
- [Chinese / 中文交流](https://www.tidai.org/c/chinese): Chinese-first talk — still alternative focused

## URL 模式
- 版块: https://www.tidai.org/c/{slug}
- 帖子: https://www.tidai.org/t/{id}-{slug}（旧 /t/{id} 301；分页: ?page=N）