SDZ4V3F Semiconductor Zener Diode Features * Compact type * Radiation size 1.6mm x 2.9mm * Surface mount lead configuration Ordering Information Type NO. SDZ4V3F Marking Package Code W9 SOT-23F Outline Dimensions unit : mm 2.40.1 1.60.1 1.90 BSC KSD-2041-000 3 1 0.90.1 0.150.05 2 0.40.05 3 0~0.1 2.90.1 1 2 PIN Connections 1. Anode 2. NC 3. Cathode 1 SDZ4V3F Absolute maximum ratings (Ta=25C) Characteristic Symbol Ratings Unit Power dissipation PD 200 mW Junction temperature Tj 150 C Storage temperature Tstg -55~150 C Electrical Characteristics Characteristic (Ta=25C) Symbol Test Condition Min. Typ. Max. Unit Zener voltage VZ IZ=5mA 4.11 - 4.49 V Dynamic impedance ZZT IZ=5mA - - 88 KNEE dynamic impedance ZZK IZ=0.25mA - - 2500 VR=1V - - 5 A Reverse current IR KSD-2041-000 2 SDZ4V3F Electrical Characteristic Curves Fig. 1 PD-Ta Fig. 2 IZ-VZ KSD-2041-000 3