The Honeywell SS400 Series and SS500 Series are small and versatile digital Hall-effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet, and are designed to respond to alternating north and south poles, or to a South pole only. They are available in bipolar, latching or unipolar magnetics. On-board regulation provides stable operation over a 3.8 Vdc to 30 Vdc supply voltage range. These sensors are capable of continuous 20 mA sinking output and may be cycled as high as 50 mA max. The 3.8 V capability allows for use in many potential low voltage applications.

Quad hall IC design minimizes mechanical stress effects
Temperature-compensated magnetics help provide stable operation over a wide temperature range of -40°C to 150°C
Digital, open collector sinking output for easy interfacing with a variety of common el