WHSQ48001G 2.5G/5GBASE-T LAN Transformer

The WHSQ48001G suits indoor dual-port 2.5G/5G equipment where the component temperature stays between 0 °C and +70 °C. The WHSQ48001G is a 48-pin dual-port SMD 2.5G/5G BASE-T transformer covering two ports in one package, without PoE, so both ports are powered by the equipment itself. Typical uses are switch uplinks, dual-port NICs in NAS units and workstations, and the non-powered ports of wireless access points.

Where the component temperature may fall below 0 °C or rise above +70 °C, or where either port has to deliver power, send VOOHU the temperature range, the steady current expected in each centre-tap path and the footprint constraint, and VOOHU will re-select against those requirements. Other options are listed in the 2.5G/5G BASE-T range.

No. The datasheet assigns no DC balance current capability to the centre taps of the WHSQ48001G – there is no current item among the eleven electrical entries, so the taps on neither port can be used as a supply path. Terminate the centre taps as the reference design for the target PHY requires.

Where either port has to deliver power, the WHSQ48004-1PG publishes 720 mA per magnetic channel and the WHSQ48002-1PG publishes 1000 mA, both in the same 48-pin dual-port outline with the same body size and pad layout as the WHSQ48001G. Check the choice against the steady current and the temperature range of the target port before fixing it.

There is no published difference to choose on: the WHSQ48001G and the WHSQ48002G share operating and storage temperature, an OCL of 200 μH minimum with no stated DC bias, DCR, insertion and return loss, crosstalk, common-mode rejection, the isolation test, body size, pad layout and reel quantity, and neither supports PoE. The decision therefore sits outside the electrical block.

Both drawings show pin numbers only, without net names or side labels, so ask VOOHU for drawings carrying the net names and confirm that the pin assignment matches before treating the WHSQ48001G as a substitute for the other part. Until that is confirmed, do not list them as alternates in an AVL; otherwise decide on availability and on what is already in the bill of materials.