1.6 mOhm high-side switch for automotive power distribution
The Infineon BTS500101TADATMA1 is a single-channel automotive high-side power switch from the Reversave family, qualified to AEC-Q100. It integrates an N-channel MOSFET with a typical on-resistance of 1.6 mOhm, capable of switching continuous loads up to 40 A from an 8 V to 18 V supply bus. The TO-263-7 D²Pak (P/PG-TO-263-7-10) surface-mount package with an exposed tab is designed for thermal transfer to the PCB copper plane — essential for dissipating heat at 40 A continuous current.
Protection suite and output stage
Fault protection covers over-temperature, over-voltage, reverse battery, and short-circuit events, which reduces the need for external clamp or sense circuitry in an automotive load-switching node. The output is configured as a high-side N-channel with a 1:1 input-to-output ratio. No external Vcc supply is needed — the gate drive is derived from the load supply rail.
Obsolete — sourcing via independent distribution
Infineon lists the BTS500101TADATMA1 as obsolete. Procurement must rely on the independent surplus channel.