1N4728 THRU 1N4764 SILICON PLANAR POWER ZENER DIODES Features Silicon Planar Power Zener Diodes for use in stabilizing and clipping circuits with high power rating. Standard Zener voltage tolerance is 10%. Add suffix A for 5% tolerance. Other tolerances available upon request. DIM ENSIONS inches DIM Absolute Maximum Ratings (Ta=25 mm Min. Max. Min. Max. A - 0.169 - 4.3 B - 0.110 - 2.8 C - 0.031 - 0.8 D 1.102 - 28.0 - ) Symbols Values Units Zener current see Table "Characteristics" Power dissipation at Tamb=25 Ptot 1 W Junction temperature Tj 200 Storage temperature range TS -65 to +200 1) Note: (1) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. Characteristics at Tamb=25 Symbols Min. Typ. Thermal resistance junction to ambient Air RthA - - 170 Forward voltage at IF=200mA VF - - 1.2 Note: (1) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. 1 Max. 1) Units K/W V Note Zener voltage range 3) Type Maximum Zener Impedance 1) Vznom IZT V mA 1N4728 3.3 76 10 1N4729 3.6 69 10 1N4730 3.9 64 1N4731 4.3 1N4732 4.7 1N4733 Reverse leakage current rzjT and rzjk at IZK Surge current at TA=25 IR at VR Maximum regulator current IR IZM mA uA V mA mA 400 1.0 150 1 1375 275 400 1.0 100 1 1260 252 9 400 1.0 100 1 1190 234 58 9 400 1.0 50 1 1070 217 53 8 500 1.0 10 1 970 193 5.1 49 7 550 1.0 10 1 890 178 1N4734 5.6 45 5 600 1.0 10 2 810 162 1N4735 6.2 41 2 700 1.0 10 3 730 146 1N4736 6.8 37 3.5 700 1.0 10 4 660 133 1N4737 7.5 34 4.0 700 0.5 10 5 605 121 1N4738 8.2 31 4.5 700 0.5 10 6 550 110 1N4739 9.1 28 5.0 700 0.5 10 7 500 100 1N4740 10 25 7 700 0.25 10 7.6 454 91 1N4741 11 23 8 700 0.25 5 8.4 414 83 1N4742 12 21 9 700 0.25 5 9.1 380 76 1N4743 13 19 10 700 0.25 5 9.9 344 69 1N4744 15 17 14 700 0.25 5 11.4 304 61 1N4745 16 15.5 16 700 0.25 5 12.2 285 57 1N4746 18 14 20 750 0.25 5 13.7 250 50 1N4747 20 12.5 22 750 0.25 5 15.2 225 45 1N4748 22 11.5 23 750 0.25 5 16.7 205 41 1N4749 24 10.5 25 750 0.25 5 18.2 190 38 1N4750 27 9.5 35 750 0.25 5 20.6 170 34 1N4751 30 8.5 40 1000 0.25 5 22.8 150 30 1N4752 33 7.5 45 1000 0.25 5 25.1 135 27 1N4753 36 7.0 50 1000 0.25 5 27.4 125 25 1N4754 39 6.5 60 1000 0.25 5 29.7 115 23 1N4755 43 6.0 70 1500 0.25 5 32.7 110 22 1N4756 47 5.5 80 1500 0.25 5 35.8 95 19 1N4757 51 5.0 95 1500 0.25 5 38.8 90 18 1N4758 56 4.5 110 2000 0.25 5 42.6 80 16 1N4759 62 4.0 125 2000 0.25 5 47.1 70 14 1N4760 68 3.7 150 2000 0.25 5 51.7 65 13 1N4761 75 3.3 175 2000 0.25 5 56.0 60 12 1N4762 82 3.0 200 3000 0.25 5 62.2 55 11 1N4763 91 2.8 250 3000 0.25 5 69.2 50 10 1N4764 100 2.5 350 3000 0.25 5 76.0 45 9 Notes: (1) The Zener Impedance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current (IZT or IZK) is superimposed on IZT or IZK. Zener Impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. (2) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. (3) Measured under thermal equilibrium and DC test conditions. 2 2) RATINGS AND CHARACTERISTIC CURVES 3