View czrv5221b-thru-czrv5267b datasheet:

SMD Zener Diode SMD Diodes Specialist CZRV5221B-G Thru CZRV5267B-G Voltage: 2.4 to 75 Volts Power: 200 mWatts RoHS Device SOD-323 Features For surface mounted applications. 0.071(1.80) 0.063(1.60) 200mW Power Dissipation. 0.014(0.35) 0.055(1.40) 0.010(0.25) 0.047(1.20) Ideally suited for automated assembly processes. 0.106(2.70) 0.098(2.50) Pb free product. 0.006(0.15) Mechanical data 0.039(1.00)MAX. 0.003(0.08) 0.004(0.10)MAX. Case: SOD-323, Molded plastic. 0.019(0.475)REF. Terminals: Solder Plated,solderable per MIL-STD-750,method 2026. Polarity: Cathode band. Dimensions in inches and (millimeter) Weight: 0.008 gram(approx.). Maximum Rating AND Electrical Characteristics Parameter Symbol Value Unit Maximum Power Dissipation,TA = 25°C PD 200 m