PROFET high-side switch — obsolete, but still in demand for repair and legacy BOMs
The BTS307E3062ABUMA1 is an Infineon PROFET high-side power switch with a single N-channel output, rated for loads from 5.8 V to 58 V and delivering up to 1.4 A continuously. The typical on-resistance of 220 mOhm means at 1 A load the conduction loss is about 220 mW — manageable in the TO-263-5 (D²Pak) package with the exposed tab soldered to a copper plane.
220 mOhm Rds(on) and 1.4 A output — what drives the thermal design
Built-in fault protection covers current limiting, open load detection, over-temperature, and over-voltage — no external clamp diode needed for inductive loads up to the rated current.
Availability is limited to surplus and broker inventory. Each lot should be verified for date-code consistency and marking authenticity — the TO-263-5 package is a common target for re-marked parts.
