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257 points voxadam | 1 comments | 16 Oct 25 14:09 UTC | HN request time: 0.202s | source

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willis936 ◴[22 Oct 25 02:40 UTC] No.45664343[source]▶

Other stuff engineers should know:

- PoE endpoints should have isolation barriers, factor this into cost and size estimates

- Don't skimp on TVS

- ideal diode full bridge rectifiers are really cool and you should use them (in more power entries than just PoE)

1. jwr ◴[22 Oct 25 08:04 UTC] No.45666107[source]▶

> Don't skimp on TVS

This. I know from a friend (ahem) that if you do, you will discover problems in production deployments, when it's too late to fix things.

Power over Ethernet (PoE) basics and beyond