8 mOhm Rds(on) at the junction — not just 25 °C
The BTS3160DAUMA1 is a single-channel low-side N-channel power switch from the HITFET® family, rated 7.8 A continuous output with a typical on-resistance of 8 mOhm.
Load voltage and protection envelope
The switch handles a load supply from 6 V to 45 V, covering nominal 12 V and 24 V automotive rails as well as industrial 24 V and 36 V bus voltages. Fault protection includes current limiting (fixed threshold), over-temperature shutdown, over-voltage clamp, and under-voltage lockout — the device self-protects without an external sense resistor or watchdog. Operating junction temperature spans -40 °C to 150 °C, which aligns with AEC-Q100 Grade 0-class ambient for under-hood or engine-bay deployment, though the part itself is not explicitly AEC-qualified in the listed evidence. The input is logic-level compatible and does not require a separate Vcc supply — the gate drive is self-biased from the load voltage.
The BTS3160DAUMA1 comes in a TO-252-5 (DPak) surface-mount package with four leads plus a tab — the supplier device package is PG-TO252-5-13. A four-layer board with thermal vias under the tab keeps the junction below 150 °C at the full 7.8 A load.