Why the temperature range matters for this latch
The TLE49613MXTSA1 is a south-pole sensitive Hall-effect latch with an open-drain output, rated from -40°C to 170°C. That upper limit is unusual for a SOT23-3 package — it means the die and the plastic compound are qualified for engine-bay or exhaust-adjacent positions where standard 125°C parts would drift off their trip points. The magnetic switching is specified at 25°C: a 10.4 mT operate point and -10.4 mT release. The temperature compensation keeps the magnetic thresholds stable across the full range, so the latch does not lose its hysteresis when the ambient climbs.
Supply voltage and output drive
The device runs on a 3 V supply and sinks 2.5 mA switching current with a maximum output current of 25 mA. The open-drain output lets you pull up to a higher rail — useful if the downstream controller runs at 5 V — but the latch itself is a 3 V part, so confirm the pull-up voltage does not exceed the absolute maximum of the output transistor.
Sourcing and lifecycle status
The part ships in Tape & Reel or Cut Tape — the MXTSA1 suffix indicates the SOT23-3 package on 7-inch reel.