WHDG24102G Gigabit LAN Transformer

Gigabit, single port.

The WHDG24102G holds four 1CT:1CT units forming four channels across two pairsets — two pairsets per port is the Gigabit-and-above structure, where a 100M port has only two channels in one pairset. The drawing title reads 100/1000 BASE-TX. Counting transformer units is the most direct check: four units in a single-port part means Gigabit, two means 100M. Other single-port parts are listed in the 100/1000 BASE-T range.

No. The WHDG24102G electrical block runs to eleven items and none states a current capability or an IEEE power class.

The 8 mA in the datasheet is the DC bias applied while measuring open-circuit inductance to verify magnetising behaviour — it is not current available to a load. Whether a part can deliver power is decided by a separate line stating current capability and the applicable IEEE class, not by the test condition on the inductance line. PoE parts are listed in the 100/1000 BASE-T range.

0 °C to +70 °C, a commercial grade; storage is quoted separately as -40 °C to +85 °C.

The two have to be read separately — the storage range is the unpowered limit and must not be used as an operating range, and reading its -40 °C as an available cold end is a common mistake. Where equipment will power up below 0 °C, choose a part whose operating range reaches -40 °C. Isolation on the WHDG24102G is 1500 VAC / 1 mA / 60 s. Wide-temperature options are listed in the 100/1000 BASE-T range.