BZX79B20

BZX79B Series VZ : 2.4 to 75V PD : 500mW FEATURES : • Higher zener voltages available on request. • Standard zener voltage tolerance is ± 2% • Other tolerances are available upon request. • Pb / RoHS Free ZENER DIODES DO - 35 Glass (DO-204AH) 0.079(2.0 )max. 1.00 (25.4) min. Cathode Mark 0.150 (3.8) max. 0.020 (0.52)max. MECHANICAL DATA : Case: DO-35 Glass Case Weight: approx. 0.13g 1.00 (25.4) min. Dimensions in inches and ( millimeters ) Rating at 25 °C ambient temperature unless otherwise specified. Maximum Ratings and Thermal Characteristics Parameter Zener Current see Table "Characteristics" Forward Voltage at IF = 10 mA. Power Dissipation at TL = 25°C Thermal Resistance Junction to Ambient Air Continuous Forward Current Peak reverse power dissipation (non-repetitive) tp = 100µs square wave Junction temperature Storage temperature range VF PD RθJA IF PZSM TJ TS 0.9 500 (1) Symbol Value Unit V mW °C/W mA W °C °C 300(1) 250 40 -65 to + 200 -65 to + 200 Notes: (1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature. Page 1 of 2 Rev. 02 : March 25, 2005 ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified Zener Voltage Type Number BZX79B2V4 BZX79B2V7 BZX79B3V0 BZX79B3V3 BZX79B3V6 BZX79B3V9 BZX79B4V3 BZX79B4V7 BZX79B5V1 BZX79B5V6 BZX79B6V2 BZX79B6V8 BZX79B7V5 BZX79B8V2 BZX79B9V1 BZX79B10 BZX79B11 BZX79B12 BZX79B13 BZX79B15 BZX79B16 BZX79B18 BZX79B20 BZX79B22 BZX79B24 BZX79B27 BZX79B30 BZX79B33 BZX79B36 BZX79B39 BZX79B43 BZX79B47 BZX79B51 BZX79B56 BZX79B62 BZX79B68 BZX79B75 VZ @ IZT Nom1) (V) 2.4 2.7 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 Maximum Zener Impedance , f = 1kHz Maximum Reverse Temp. coefficient Leakage Current IR (µA) 50 20 10 5 5 3 3 3 2 1 3 2 1 0.7 0.5 0.2 0.1 0.1 0.1 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 at VR (V) 1 1 1 1 1 1 1 1 1 1 2 3 5 6 7 7.5 8.5 9 10 11 12 14 15 17 18 20 22 24 27 28 32 35 38 39 43 48 53 Admissible IZ (mA) 167 135 125 115 105 95 90 85 80 70 64 58 53 47 43 40 36 32 29 27 24 21 20 18 16 14 13 12 11 10 9.2 8.5 7.8 7.1 6.4 5.8 5.3 Maximum Capacitance VR=0, f=1MHz (pF) 450 450 450 450 450 450 450 300 300 300 200 200 150 150 150 90 85 85 80 75 75 70 60 60 55 50 50 45 45 45 40 40 40 40 35 35 35 of Zener Voltage Zener Current αmvz(% / °C) -0.08...-0.06 -0.08...-0.06 -0.08...-0.05 -0.08...-0.05 -0.08...-0.04 -0.07...-0.03 -0.04...-0.01 -0.03...+0.01 -0.02...+0.05 -0.01...+0.06 0.00...0.07 0.01...0.08 0.01...0.09 0.01...0.09 0.02...0.10 0.03...0.11 0.03...0.11 0.03...0.11 0.03...0.11 0.03...0.11 0.03...0.11 0.03...0.11 0.03...0.11 0.03...0.11 0.04...0.12 0.04...0.12 0.04...0.12 0.04...0.12 0.04...0.12 0.04...0.12 0.04...0.12 0.04...0.12 0.04...0.12 0.1(typ.) 0.1(typ.) 0.1(typ.) 0.1(typ.) IZT ZZT @ IZT ZZk @ IZK IZK (mA) (Ohms) (Ohms) (mA) 5 100 600 1 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 2 2 2 2 2 2 2 2 2 2 2 2 100 95 95 90 90 90 80 60 40 10 15 15 15 15 20 20 25 30 30 40 45 55 55 70 80 80 80 90 130 150 170 180 200 215 240 255 600 600 600 600 600 600 500 480 400 150 80 80 80 100 150 150 150 170 200 200 225 225 250 250 300 300 325 350 350 375 375 400 425 450 475 500 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Notes (1) Tested with pulses tp = 5 ms (2) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case. (3) The type number listed have a standard tolerance on the nominal zener voltage of ± 2.0%. Page 2 of 2 Rev. 02 : March 25, 2005