BZX85-SeriesVISHAYVishay Semiconductors Partnumber Zener Voltage Dynamic Resistance Temperature Reverse Leakage Admissible Zener Range1) Coefficient Current Current 2) of Zener Voltage V 3) 3) Z @ IZT r @ I @ I ZT ZT rZK ZK αVZ @ IZ = IZT @ IR @ VR IZ V Ω mA Ω mA %/°C µA V mA min max min max BZX85B160 157 163 < 1100 1.5 < 6500 0.25 0.055 0.095 < 0.5 120 5.8 BZX85B180 176 184 < 1200 1.5 < 7000 0.25 0.055 0.095 < 0.5 130 5.2 BZX85B200 196 204 < 1500 1.5 < 8000 0.25 0.055 0.095 < 0.5 150 4.7 1) Measured with pulses tp = 5 ms 2) Valid provided that leads are kept at ambient temperature at a distance of 10 mm from case 3) Measured with f = 1 kHz Typical Characteristics (Tamb = 25 °C unless otherwise specified) 18458 18460 Figure 1. Pulse Thermal Resistance vs. Pulse Duration Figure 3. Dynamic Resistance vs. Zener Current 18459 18461 Figure 2. Dynamic Resistance vs. Zener Current Figure 4. Thermal Resistance vs. Lead Length Document Number 85607 www.vishay.com Rev. 1.7, 14-Jun-04 5 Document Outline Zener Diodes Features Applications Mechanical Data Typical Characteristics (Tamb = 25 °C unless otherwise specified) Package Dimensions in mm (Inches)