WHSG24F05P0 Single Port SMD Gigabit Base-T PIN24 PoE 720mA LAN Transformer

The WHSG24F05P0 datasheet states both scopes: each channel supports 360 mA of DC balance current and full channels support 720 mA, corresponding to the 30 W PoE class.

A Gigabit port is built from four differential pairs, and each differential pair is one channel; two channels, one out and one back, make a pairset, so a port is two pairsets — which is exactly why the full-channel figure is twice the per-channel one. Budget port power from these two numbers as printed, and do not multiply 360 mA by the number of channels: the current follows the port's return loop, not a count of windings. The same convention applies across the 100/1000 BASE-T range.

A component figure. The WHSG24F05P0 drawing annotates the operating temperature line as including the part's own temperature rise, so self-heating is already inside the range.

Thermal design can compare against the measured component temperature directly, without setting aside a further margin. Only a few parts in the 100/1000 BASE-T range carry that annotation, so the conclusion does not transfer to others — where the scope is not stated, read it conservatively.

Each part wins one criterion: only the WHSG24F05P0 can deliver power, and only the WHSG24F01ATG can start below freezing.

The WHSG24F05P0 supplies 360 mA per channel and 720 mA full channels, the 30 W class. On temperature, the WHSG24F05P0 is rated 0 °C to +70 °C and the WHSG24F01ATG -40 °C to +85 °C. Where both conditions apply at once, no part in this batch covers them and the requirement needs to be confirmed separately.