Pd (Power Dissipation, Max): 0.5W. Housing: DO-35 ( SOD27 ). Housing (according to data sheet): DO-35. Zener voltage: 9.1V. Quantity per case: 1. Dielectric structure: Anode-Cathode. Semiconductor material: silicon. Function: Zener diode. MRI (max): 2uA. MRI (min): 0.1uA. Equivalents: 1N5239B, BZX79C9V1, ZPD9.1. Number of terminals: 2. RoHS: yes. Assembly/installation: PCB through-hole mounting. Tolerance: 5%. Operating temperature: -65...+175°C. Threshold voltage Vf (max): 1.5V. Forward voltage Vf (min): 1.5V