1N4678...1N4717Vishay Telefunken 1.) Toleranzing and voltage designation (VZ). The type numbers shown have a standard tolerance of ± 5% on the nominal zener voltage. 2.) Maximum zener current ratings (IZM). Maximum zener current ratings are based on maximum zener voltage of the individual units. 3.) Reverse leakage current (IR). Reverse leakage currents are guaranteed and measured at VR as shown on the table. 4.) Maximum voltage change (DVZ). Voltage change is equal to the difference between VZ at 100mA and VZ at 10mA. Characteristics (Tj = 25_C unless otherwise specified) 600 1.3 ) VZtn=VZt/VZ(25°C) 500 1.2 Change TKVZ=10 10–4/K 400 8 10–4/K 6 10–4/K oltage 1.1 V 4 10–4/K 300 2 10–4/K 1.0 0 200 –2 10–4/K otal Power Dissipation ( mW T –4 10–4/K – Relative Ztn 0.9 100 V – P tot 0 0.8 0 40 80 120 160 200 –60 0 60 120 180 240 95 9602 Tamb – Ambient Temperature ( °C ) 95 9599 Tj – Junction Temperature ( °C ) Figure 1. Total Power Dissipation vs. Figure 3. Typical Change of Working Voltage vs. Ambient Temperature Junction Temperature ) 1000 15 –4 ) ( 10 /K Z V mV Tj = 25°C 10 ( 100 ficient of Change 5 I Coef Z=5mA oltage V 10 IZ=5mA – Z 0 V D emperature T VZ 1 –5 0 5 10 15 20 25 TK – 0 10 20 30 50 40 95 9598 VZ – Z-Voltage ( V ) 95 9600 VZ – Z-Voltage ( V ) Figure 2. Typical Change of Working Voltage Figure 4. Temperature Coefficient of Vz vs. under Operating Conditions at Tamb=25°C Z–Voltage Document Number 85586 www.vishay.de • FaxBack +1-408-970-5600 Rev. 2, 01-Apr-99 3 (6)