Bipolar Hall switch with temperature compensation
The TLV4961-1M is a bipolar Hall-effect switch from Infineon, meaning it toggles its output state only when the magnetic field polarity alternates between a south pole and a north pole — it does not latch on a single pole like a unipolar device. This makes it suitable for speed and position sensing in rotating assemblies where the magnet passes the sensor with alternating poles. The open-drain output lets you pull up to any voltage up to the absolute maximum rating and allows multiple open-drain outputs to share a single pull-up resistor in a wired-OR configuration.
3 V supply and -40°C to 125°C range
Rated for a 3 V supply, this hall switch operates from a single low-voltage rail. The -40°C to 125°C temperature range covers underhood automotive, industrial motor drives, and outdoor enclosures — the sensor keeps working when the ambient hits 125°C, though the output current capability (25 mA max) limits the load to a logic input or a small relay coil. The temperature-compensated feature reduces the variation in magnetic switch points across the temperature range, so the mechanical air gap and magnet strength don't need to be overdesigned for cold-start versus hot-running conditions.
Active production — no LTB pressure
Sourced per RFQ against BOM quantities.