The A1213EUA-T is a Hall Effect sensor manufactured by Allegro MicroSystems, LLC. It has a sensing range of 20mT trip and -20mT release and has an open drain output type. The sensor is designed to operate with a supply voltage of 3.8V to 24V and has a maximum output current of 25mA. It is packaged in a 3-SIP package and has a temperature range of -40°C to 85°C. The A1213EUA-T is commonly used in industrial applications as a latch sensor due to its polarization to the south pole. Although it is an obsolete product, it is still in balance in terms of supply and demand.