Allegro MicroSystems Inc. Two-Wire Unipolar Vertical Hall-Effect Switch With Advanced Diagnostics A1130LUA-X-T

The A1130LUA-X-T is a discontinued two-wire unipolar vertical Hall-effect switch with advanced diagnostics, designed for automotive applications. It features a 3-pin SIP through-hole package with dimensions of 3.00 mm ±0.05 mm width, 3.10 mm maximum height, and 14.99 mm ±0.25 mm length. The device operates with a junction temperature up to 165 °C and ambient temperatures from -40 °C to 150 °C. It is ISO 26262:2011 compliant and achieves ASIL B as a stand-alone component, with integrated diagnostics covering the signal path, voltage regulator, sensing element, and digital subsystem. The package senses magnetic fields parallel to the X-axis. It includes reverse-battery and overvoltage protection, and supports load dump up to 40 V. The output is compatible with two-wire systems and provides diagnostic feedback via a low-current state. The device is RoHS-compliant and lead-free.