Rail-to-rail steering for HDMI and Ethernet port protection
The Texas Instruments TPD2E009DRTR is a steering (rail-to-rail) TVS diode array that protects two high-speed differential signal lines — exactly the count needed for one HDMI or Ethernet port. Its two unidirectional channels clamp transients to the supply rails rather than to ground, which preserves signal integrity on fast edges while shunting ESD events away from the downstream PHY or receiver IC.
Clamp voltage and standoff — fit to the protected rail
The 8 V clamping maximum at 1 A peak pulse (8/20 µs waveform) keeps the voltage seen by the protected IC below the typical absolute maximum of 5.5 V PHY devices, leaving margin for the IC's own breakdown threshold.
45 W peak pulse — ESD, not surge
It meets IEC 61000-4-2 ESD requirements for the interface connector — the typical application is protecting the HDMI or RJ-45 jack from human-body-model and machine-model discharges that occur during cable handling.
SOT-3 package — footprint and placement
Placement directly at the port — between the connector and the PHY — minimises the inductive loop that would otherwise reduce clamp effectiveness on fast ESD edges.
Listed with an active product status, the TPD2E009DRTR is current-production and carries no end-of-life notice.