1N4728G ~ 1N4764G ZENER DIODES DO-41 Glass (DO-204AL) VZ : 3.3 to 100V PD : 1.0 Watt FEATURES : 1.00 (25.4) min. 0.102(2.6 )max. • Silicon planar power zener diodes. • For use in stabilizing and clipping circuits with high power rating. • Standard zener voltage tolerance is ± 10% • Other tolerances are available upon request. • Pb / RoHS Free 0.161 (4.1) max. Cathode Mark 1.00 (25.4) min. 0.034 (0.86)max. MECHANICAL DATA : Case: DO-41 Glass Case Weight: approx. 0.35g Dimensions in inches and ( millimeters ) Maximum Ratings and Thermal Characteristics Rating at 25 °C ambient temperature unless otherwise specified. Parameter Symbol Value Maximum Forward Voltage at IF = 200 mA. VF 1.2 Power Dissipation PD Unit Zener Current see Table "Characteristics" Thermal Resistance Junction to Ambient Air RθJA 1.0 (1) V W 100(1) K/W Junction temperature TJ 175 °C Storage temperature range TS -55 to + 175 °C Note: (1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature. Page 1 of 2 Rev. 03 : March 25, 2005 ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified Nominal Zener (3) Type No. Voltage VZ @ IZT IZT (V) (mA) (1) Maximum Zener Impedance ZZT @ IZT ZZK @ IZK IZK (Ω) (Ω) (mA) Maximum Reverse Maximum Maximum Leakage Current Regulator Current Surge Current IR @ VR IZM(2) IRM (mA) (mA) (µA) (V) 1N4728G 3.3 76.0 10 400 1.0 100 1.0 276 1380 1N4729G 3.6 69.0 10 400 1.0 100 1.0 252 1260 1N4730G 3.9 64.0 9.0 400 1.0 50 1.0 234 1190 1N4731G 4.3 58.0 9.0 400 1.0 10 1.0 217 1070 1N4732G 4.7 53.0 8.0 500 1.0 10 1.0 193 970 1N4733G 5.1 49.0 7.0 550 1.0 10 1.0 178 890 1N4734G 5.6 45.0 5.0 600 1.0 10 2.0 162 810 1N4735G 6.2 41.0 2.0 700 1.0 10 3.0 146 730 1N4736G 6.8 37.0 3.5 700 1.0 10 4.0 133 660 1N4737G 7.5 34.0 4.0 700 0.5 10 5.0 121 605 1N4738G 8.2 31.0 4.5 700 0.5 10 6.0 110 550 1N4739G 9.1 28.0 5.0 700 0.5 10 7.0 100 500 1N4740G 10 25.0 7.0 700 0.25 10 7.6 91 454 1N4741G 11 23.0 8.0 700 0.25 5.0 8.4 83 414 1N4742G 12 21.0 9.0 700 0.25 5.0 9.1 76 380 1N4743G 13 19.0 10 700 0.25 5.0 9.9 69 344 1N4744G 15 17.0 14 700 0.25 5.0 11.4 61 305 1N4745G 16 15.5 16 700 0.25 5.0 12.2 57 285 1N4746G 18 14.0 20 750 0.25 5.0 13.7 50 250 1N4747G 20 12.5 22 750 0.25 5.0 15.2 45 225 1N4748G 22 11.5 23 750 0.25 5.0 16.7 41 205 1N4749G 24 10.5 25 750 0.25 5.0 18.2 38 190 1N4750G 27 9.5 35 750 0.25 5.0 20.6 34 170 1N4751G 30 8.5 40 1000 0.25 5.0 22.8 30 150 1N4752G 33 7.5 45 1000 0.25 5.0 25.1 27 135 1N4753G 36 7.0 50 1000 0.25 5.0 27.4 25 125 1N4754G 39 6.5 60 1000 0.25 5.0 29.7 23 115 1N4755G 43 6.0 70 1500 0.25 5.0 32.7 22 110 1N4756G 47 5.5 80 1500 0.25 5.0 35.8 19 95 1N4757G 51 5.0 95 1500 0.25 5.0 38.8 18 90 1N4758G 56 4.5 110 2000 0.25 5.0 42.6 16 80 1N4759G 62 4.0 125 2000 0.25 5.0 47.1 14 70 1N4760G 68 3.7 150 2000 0.25 5.0 51.7 13 65 1N4761G 75 3.3 175 2000 0.25 5.0 56.0 12 60 1N4762G 82 3.0 200 3000 0.25 5.0 62.2 11 55 1N4763G 91 2.8 250 3000 0.25 5.0 69.2 10 50 1N4764G 100 2.5 350 3000 0.25 5.0 76.0 9.0 45 Notes: (1) The Zener impedance is derived from the 1kHZ 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 electrodes at a distance of 10mm from case are kept at ambient temperature (3) Measured under thermal equilibrium and DC test conditions. (4) Standard Zener voltage tolerance is ± 10% tolerance. Other Zener voltages and tolerances are available upon request. Page 2 of 2 Rev. 03 : March 25, 2005