Active-production high-side switch for 5–34 V rails
Infineon BTS409L1E3062AAUMA1 is a single-channel high-side N-channel power switch in the TO-263-5 D2PAK package. The 160 mOhm typical Rds(on) and 2.3 A continuous output rating suit it for switching resistive and inductive loads on 12 V and 24 V automotive or industrial supply rails.
On-resistance and load voltage range
Rds(on) of 160 mOhm typical means ~370 mV drop at 2.3 A — the conduction loss is 0.85 W at full current, manageable with the D2PAK tab soldered to a copper plane. Load voltage range spans 5 V to 34 V, covering 12 V and 24 V nominal systems with margin for load-dump transients.
Integrated fault protection — six events covered
The switch integrates current limiting (fixed threshold), open-load detection, over-temperature shutdown, over-voltage clamp, reverse-current blocking, and short-circuit protection. No external sense resistor or comparator needed — the open-load detect is a differentiator for lamp or solenoid diagnostics.
Junction temperature and package thermal path
The PG-TO263-5-2 package exposes a large copper tab — PCB thermal vias under the tab drop RthJA significantly versus a standard SOIC.
Lifecycle status is Active. Sourced to order against your BOM line; confirm quantity and date-code preference at quote.