ere FAIRCHILD ee DISCRETE POWER AND SIGNAL SEMICONDUCTOR mw BZX84C4V3 TECHNO NOGIES 5% TOLERANCE Absolute Maximum Rating$ (note 1) TA = 25C unless otherwise noted Parameter Value Units Storage Temperature -55 to +150 C Maximum Junction Temperature +150 C Total Power Dissipation at 25C 350 mw Derate above 25C 1.8 mW/C Thermal Resistance - Junction to Ambient 357 OC/W Repetitive Peak Forward Current (I-ay) 250 mA Repetitive Peak Working Current (lay) 250 mA Dvz/DTt @ 5.0 mA Min -3.5 mvV/K Max 0.0 mvV/K Nominal Zener Voltage (V;) at 5.0 mA 4.3 V Note 1: These ratings are limiting values above which the serviceability of any semiconductor device may be impaired MECHANICAL CHARACTERISTICS Case: JEDEC SOT-23AB (Low Profile) (Plastic 3 Leaded Surface Mount Device) Lead Finish: Solder Plate 85/15 (Sn/Pb) 200 um Min Polarity: Cathode = Pin 1. When operated in zener mode, cathode will be positive with respect Electrical Characteristics to anode. CONNECTION DIAGRAM [3] 2NC TA = 25C unless otherwise noted Ly [2] SYM CHARACTERISTICS MIN MAX UNITS TEST CONDITIONS Vz Zener Voltage 3.30 4.00 V lr = 1.0 MA Pulse 26 ms 4.00 4.60 V Pan = 5.0 mA Pulse 26 mS 4.40 5.10 V lr = 20.0 mMAD.c Zz Zener Impedance 600 Ohms | Il, = 1.0mA In Reverse Leakage 3.0 uA Ve = 1.0V Ve Forward Voltage 900 mV If = 10mA Cr Capacitance 450 pF Ve = O00 V 1997 Fairchild Semiconductor Corporation Revision B - October 15, 1998ee FAIRCHILD ee SEMICONDUCTOR m DISCRETE POWER AND SIGNAL TECHNOLOGIES Zener devices only The pin identification shown below is for Diode and 0.019 (0.483) > < 0.015 (0.381) 0.098 (2.489) 0.083 (2.108) 3 CHARACTERS MAX {, 0.055 (1.397) 0.047 (1.194) v 1 2 0.024 (0.810) 0.018 (0.457) Vv 0.040 (1.016) 0.035 (0.889) < 0.080 (2.032) 0.070 (1.778) 0.120 (3.048) tt _ 0110 (2.794) A (49) 0.030 (0.762) LOW PROFILE (49) 0.0040 (0.102) 0.0005 (0.013) SOT-23 350 MILLIWATT ZENER Pin 3 LOW PROFILE 0.041__ (1.041) 0.0059__ (0.150) 0.0035 (0.089) Diode vs Bipolar Pinout Diode Bipolar Pin 1 Pin 2 Pin 2 Pin 3 Pin 1ere FAIRCHILD ee SEMICONDUCTOR m DISCRETE POWER AND SIGNAL TECHNOLOGIES 0.030 +/- 0.005 (0.762 +/- 0.127) 0.120 MINIMUM (3.048) >< Q.035 Typical [| q > (0.889) 0.060 _+/- 0.005 (1.524 +/- 0.127) RECOMMENDED SOLDER PADS FOR SOT-23