The Infineon BTS410E2NKSA1 is a single-channel PROFET high-side power switch in a through-hole PG-TO220-5-3 package. It switches a resistive, inductive, or lamp load on the high side with a typical on-resistance of 190 mOhm, delivering up to 1.6 A continuous output current. The load supply range spans 4.7 V to 42 V, covering nominal 12 V and 24 V automotive and industrial rails with margin for load-dump transients.
Built-in fault protection simplifies the BOM
The switch also features auto-restart and a status flag output, allowing the system controller to distinguish a temporary over-current event from a hard fault without polling the load current.
Infineon lists the BTS410E2NKSA1 as obsolete. The through-hole PG-TO220-5-3 package (five formed leads) is a legacy footprint. If the board is being redesigned, a surface-mount PROFET in the same current class may be a more practical fit for automated assembly, but no pin-compatible drop-in replacement is documented.
