Disclosure: I build PartsPlan, the tool mentioned at the end. The cases below are real answers I checked against the manufacturer's pages. If you ask a chat AI for a component value, you get a confident number, and a wrong value looks exactly like a right one.
Source: [Dev.to](https://dev.to/_30b2d57c3ad69af356f64/7-real-cases-where-chatgpt-and-claude-got-datasheet-values-wrong-and-how-to-check-them-55bm)