Quantity per case: 1. Dielectric structure: Anode-Cathode. Semiconductor material: silicon. Function: Zener diode. Number of terminals: 2. Dimensions: 2.6x4.8mm. Pd (Power Dissipation, Max): 1.3W. RoHS: yes. Assembly/installation: PCB through-hole mounting. Housing: DO-41. Housing (according to data sheet): DO-41. Tolerance: 5%. Zener voltage: 11V