WHDQ96504P2 Quad Ports 2.5G/5G DIP 96PIN LAN Transformer
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Per-port capability is defined; simultaneous full load on all four has to be measured in the finished system.Each magnetic channel of the WHDQ96504P2 supports 900 mA and one port's full channels support 1800 mA. The stated PoE Support 90W is the power class at the PSE port output – the power finally available at the PD is reduced by cable loss and set by system classification and power management. Concurrency is a separate question: measure the actual component temperature at the highest planned internal temperature and worst airflow, then set the concurrency strategy.
Four contiguous blocks: Port 1 uses chip-side pins 1–12 and cable-side 85–96; Port 2 uses 13–24 and 73–84; Port 3 uses 25–36 and 61–72; Port 4 uses 37–48 and 49–60.Route each port's differential pairs and PoE returns along that partition, and keep port numbering aligned with the PHY channels and the front-panel RJ45 order, otherwise fault isolation during production test becomes difficult. The WHDQ96504P2 schematic is labelled by pin number, so build the netlist directly against pin numbers.
No. The 2.60 mm on the drawing is the pin length from the underside of the body; how far the pin actually protrudes below the PCB depends on board thickness and insertion depth.Calculate rear-side component placement and enclosure stack-up against your own board stack rather than quoting 2.60 mm. Likewise, 14.50 mm is the maximum component body height of the WHDQ96504P2, and assembled board-side clearance must still allow for board thickness and process tolerance. Related multi-gig options are in the2.5G/5G BASE-T range.
