AEC-Q101 automotive line-fit gate
The USBLC6-2SC6Y carries explicit AEC-Q101 qualification. For any automotive ECU design — whether under-hood, cabin, or chassis-domain — this is the hard gate: capable is not qualified. The OEM auditor will ask for the AEC-Q101 certificate and PPAP documentation. Without this tick, the part is rejected at the sourcing review, regardless of electrical performance.
5.25 V standoff — protection window for 5 V rails
This window is sized for a 5 V supply rail.
Steering (rail-to-rail) topology for high-speed lines
This is a steering (rail-to-rail) TVS array with two unidirectional channels. The steering architecture steers overvoltage events to the supply rails rather than clamping them to ground, which keeps signal integrity on high-speed differential pairs — in this case, Ethernet. The low capacitance inherent to this topology avoids degrading the 100BASE-T1 or BroadR-Reach eye diagram. The SOT-23-6 package keeps the trace length from the connector to the protection short, which is critical for clamping response time.
This covers the full automotive temperature envelope including hot engine bay soak and cold-crank conditions.
The base product number USBLC6 covers the family; the -2SC6Y suffix identifies the automotive-grade SOT-23-6 variant with the rail-to-rail steering topology.