LM431ACZ. Assembly/installation: PCB through-hole mounting. Function: Adjustable Precision Zener. Housing (according to data sheet): TO-92. Housing: TO-92. Operating temperature: 0...+70°C. Pd (Power Dissipation, Max): 0.78W. Reference voltage: 2.495V. RoHS: yes. Temperature stability: 50ppm/°C. Tolerance: 2%. Original product from manufacturer: National Semiconductor. Quantity in stock updated on 14/11/2025, 00:51