1N4746A

1N4728A-Z1330A Axial Lead Zener Diodes VZ: 3.3 to 330 V PD: 1 W Features DO-41 Glass passivated chip ● Low leakage ● Built-in strain relief ● Low inductance ● High peak reverse power dissipation ● Lead (Pb)-free component ● For use in stabilizing and clipping circuits with high power rating ● DIA. 0.033 0.84 0.028 0.71 1.000 [25.40] MIN [ ] [ ] 0.205 5.21 0.165 4.19 Mechanical Data Case: Molded plastic ● Epoxy: UL 94V-0 rate flame retardant ● Lead: Axial leads,Solderable per MILSTD-202, method 208 guranteed ● Polarity: Color band denotes cathode end ● Mounting position: Any ● DIA. 0.117 2.97 0.090 2.29 [ ] 1.000 [25.40] MIN Dimensions : inch [ mm ] Maximum Ratings(TA=25℃ unless otherwise noted) Parameter DC power dissipation at TL = 75 °C(1) Maximum forward voltage at IF = 200 mA Maximum thermal resistance junction to ambient air Junction temperature range (2) Storage temperature range Symbol PD Value 1 Unit W VF 1.2 V RӨJA 170 °C/W TJ - 55 to + 175 °C TSTG - 55 to + 175 °C Note: (1) TL = Lead temperature at 3/8 " (9.5mm) from body (2) Valid provided that leads are kept at ambient temperature at a distance of 10 mm from case 0571-87006810 www.dowosemi.cn 第 1 页，共 3 页 1N4728A-Z1330A Ratings and Characteristics Curves (TA=25℃ unless otherwise noted) 100 0.8 Temperature Coefficient,ӨVz, (mV/°C) Maximum Power Dissipation, PD (W) 1.0 0.6 0.4 0.2 0.0 0 25 50 75 100 125 150 175 Range 10 1 200 10 100 Zener Voltage, Vz, (V) Lead Temperature ,TL (℃) Fig. 1 - Power Temperature Derating Curve Fig. 2 - Temperature Coefficients v.s. Zener Voltage Junction to Lead Thermal Resistance, ӨJL, (°C/W) 175 150 125 100 75 50 25 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Lead Length to Heatsink , L, (inches) Fig. 3 - Typical Thermal Resistance v.s. Lead Length Peak Surge Power, Ppk, (W) 100 5% Duty Cycle 10 11V-91V Non-Repetitive Rectangular Waveform TJ=25°C Prior to Initial Pulse 10% Duty Cycle 20% Duty Cycle 1 0.01 0.1 1 10 100 1000 Pulse Width, PW, (s) Fg. 4 - Maximum Surge Power 0571-87006810 www.dowosemi.cn 第 2 页，共 3 页 1N4728A-Z1330A Electrical Characteristics(TA=25℃ unless otherwise noted) Part Number 1N4728A 1N4729A 1N4730A 1N4731A 1N4732A 1N4733A 1N4734A 1N4736A 1N4737A 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A 1N4743A 1N4744A 1N4745A 1N4746A 1N4747A 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A 1N4753A 1N4754A 1N4755A 1N4756A 1N4757A 1N4758A 1N4759A 1N4760A 1N4761A 1N4762A 1N4763A 1N4764A Z1110A Z1120A Z1130A Z1150A Z1160A Z1180A Z1200A Z1220A Z1240A Z1250A Z1270A Z1300A Z1330A Nominal Zener Voltage VZ @ IZT (V) 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.8 7.5 8.2 9.1 10.0 11.0 12.0 13.0 15.0 16.0 18.0 20.0 22.0 24.0 27.0 30.0 33.0 36.0 39.0 43.0 47.0 51.0 56.0 62.0 68.0 75.0 82.0 91.0 100.0 110.0 120.0 130.0 150.0 160.0 180.0 200.0 220.0 240.0 250.0 270.0 300.0 330.0 IZT (mA) 76.0 69.0 64.0 58.0 53.0 49.0 45.0 37.0 34.0 31.0 28.0 25.0 23.0 21.0 19.0 17.0 15.5 14.0 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 2.3 2.0 1.9 1.7 1.6 1.4 1.2 1.0 0.9 0.9 0.8 0.8 0.7 Maximum Zener Impedance ZZT @ IZT (Ω) 10 10 9.0 9.0 8.0 7.0 5.0 3.5 4.0 4.5 5.0 7.0 8.0 9.0 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350 450 550 700 1000 1100 1200 1900 1600 1800 2000 2100 2300 2500 ZZK @ IZK (Ω) 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 4000 4500 5000 6000 6500 7000 9990 8000 8500 9000 9000 9500 9500 IZK (mA) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.50 0.50 0.50 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 Maximum Reverse Leakage Current IR @ VR (V) (μA) 100 1.0 100 1.0 50 1.0 10 1.0 10 1.0 10 1.0 10 2.0 5.0 4.0 5.0 5.0 5.0 6.0 0.5 7.0 0.5 7.6 0.1 8.4 0.1 9.1 0.1 9.9 0.1 11.4 0.1 12.2 0.1 13.7 0.1 15.2 0.1 16.7 0.1 18.2 0.1 20.6 0.1 22.8 0.1 25.1 0.1 27.4 0.1 29.7 0.1 32.7 0.1 35.8 0.1 38.8 0.1 42.6 0.1 47.1 0.1 51.7 0.1 56.0 0.1 62.2 0.1 69.2 0.1 76.0 0.1 83.6 0.1 91.2 0.1 98.8 0.1 114.0 0.1 121.6 0.1 136.8 0.1 152.0 0.1 167.2 0.1 182.4 0.1 190.0 0.1 205.0 0.1 228.0 0.1 250.2 Maximum Maximum DC Zener Surge Current Current Notes : (1) The type number listed have a standard tolerance on the nominal zener voltage of ± 5 % (2) The revese surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC method 0571-87006810 www.dowosemi.cn IZM (mA) 274 251 232 210 192 177 161 133 121 110 100 91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 11 10 9.0 8.6 7.8 7.0 6.4 5.8 5.2 4.7 4.0 3.8 3.6 3.3 3.0 2.7 IRM (mApk) 1370 1255 1160 1050 960 885 805 660 605 550 500 454 414 380 344 305 285 250 225 205 190 170 150 135 125 115 110 95 90 80 70 65 60 55 50 45 40 37 34 30 28 25 22 20 19 18 16 15 13 第 3 页，共 3 页