WHDQ48201N0 Dual Ports DIP 2.5/5G BASE-T PIN48 LAN Transformers
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No. The WHDQ48201N0 does not support PoE, and its datasheet assigns no DC balance current capability to the centre taps.CMT1 to CMT8 is simply the net-name prefix used on this part's drawing, differing from the MCT form used elsewhere in the range, but that difference does not change the conclusion: these taps are not qualified to carry direct current.
The part targets data-only dual-port 2.5G/5G links with locally powered ports, and the taps should be terminated according to the reference design for the target PHY. Other options are listed in the2.5G/5G BASE-T range.
The pin length below the board – the WHDQ48201N0 drawing gives the length from the underside of the body to the pin tip, not how far the pin protrudes once soldered.Actual protrusion depends on board thickness and insertion depth, so rear-side component placement and enclosure stack-up have to be calculated against your own stack. Likewise, the maximum height is the component body height; assembled clearance also has to allow for board thickness and process tolerance.
For a long DIP body of this size, list insertion support, warpage and thermal shadowing as first-article and process-qualification items, and start the process window from the wave-solder condition the datasheet recommends rather than an SMD reflow profile.
Industrial equipment that needs two 2.5G/5G data ports, powers them locally, and has to operate across -40 °C to +85 °C.Typical directions are the uplink and downlink ports of industrial multi-gigabit gateways and protocol converters, high-bandwidth links in machine-vision and data-acquisition systems, and the dual uplinks of edge controllers.
A DIP package is usually chosen over a surface-mount one for its mechanical retention under vibration and mechanical stress, though the datasheet makes no vibration qualification statement – raise it during selection if your project has to sign off against a vibration standard. Local port power is a precondition, since the WHDQ48201N0 does not support PoE.
