WHSG24701ATG Single Port SMD Gigabit Base-T PIN24 PoE LAN Transformer
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Both are rated -40 °C to +85 °C operating; what differs is storage range and lead width — the WHSG24701ATG stores at -40 °C to +85 °C against -40 °C to +125 °C for theWHSG24701TG, and its leads are 0.50 mm wide against 0.46 mm.
The two share one recommended land pattern. Where stock sits for long periods or transport conditions are demanding, that 40 °C of storage headroom is worth checking on its own — storage grades vary across the100/1000 BASE-T range.
Not for placement. Leads on the WHSG24701ATG are 0.50 mm wide against 0.46 mm on some family members, while the recommended pad is 0.76 mm wide, so both sit inside the pad, and coplanarity is 0.100 mm either way.
What does need checking on a change are the other items: storage grade, internal element count, and the target part's own pin assignment. Lead width only matters when writing the acceptance criteria for incoming dimensional inspection.
Two temperature grades of one package: the WHSG24701ATG is rated -40 °C to +85 °C, theWHSG24701AG0 °C to +70 °C.
Body size, pitch and recommended land pattern match. Select on the temperature at the transformer's own location rather than the cabinet ambient — a surface-mount part sits on the board surface and runs well above inlet temperature near a power supply or downstream in the airflow. Cold start-up below 0 °C, or long running above +70 °C, calls for the WHSG24701ATG.
