Omnipolar Hall switch with ±17mT trip point
The BU52737GWZ-E2: The BU52737GWZ- is an omnipolar Hall effect switch from ROHM Semiconductor, meaning it responds to both north and south pole magnetic fields with equal sensitivity. The trip point is ±17mT (typical at 25°C), with a release point of ±11mT — the 6mT hysteresis prevents output chatter near the switching threshold. Output is a CMOS digital signal, so it interfaces directly with microcontroller GPIOs or logic inputs without a pull-up resistor. The 2.5V supply rail matches low-voltage portable and battery-powered designs, and the 0.5mA max output current drives small loads or logic inputs directly.
Package and temperature grade for embedded systems
The temperature range does not extend to under-hood or high-temp industrial zones, so confirm the ambient thermal profile before committing to the BOM.