The SS451A is an Omni-polar Digital Hall-effect Sensor IC designed to respond to either a north-pole or a south-pole. This sensor IC is small and versatile digital hall-effect devices operated by the magnetic field from a permanent magnet or an electromagnet. This product has a typical operating point of 85G at 25°C. Because it can be operated by a north-pole or a south-pole, this do not require the magnet polarity to be identified. This Omni-polar sensor is sensitive and flexible device designed to meet a wide range of potential applications.