1N4728(A)-1N4764(A) 1 WATT ZENER DIODES High-reliability discrete products and engineering services since 1977 FEATURES Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number. Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix. MAXIMUM RATINGS Characteristics Value Power dissipation @ 25°C 1W Junction temperature 175°C Operating and storage temperature range -65 to +175°C Maximum thermal resistance, junction to lead @ 3/8 inch lead length from body 80°C/W Maximum thermal resistance, junction to ambient when mounted on FR4 PC board with 4mm2 copper pads and track width 1mm, length 25mm 140°C/W Steady state power @ 3/8 inch lead length from body when mounted on FR4 PC board with 4mm2 copper pads and track width 1mm, length 25mm 1.0W @ TL ≤ 95°C 1.0W @ TA ≤ 35°C Forward voltage @ 200mA 1.2 volts maximum Solder temperatures 260°C for 10 s maximum ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified) Zener Voltage(4) (VZ) Test Current (lZT) Maximum Dynamic Impedance(2) (ZZT @ lZT) Maximum Reverse Current (lR @ VR) Test Voltage (VR) Maximum Regulator Current (lZM) TA = 50°C Maximum Knee Impedance(2) (ZZK @ lZK) Test Current (lZK) Maximum (Surge) Current(3) (lS) VOLTS mA OHMS μA VOLTS mA OHMS mA mA 1N4728 3.3 76 10 100 1 276 400 1.0 1380 1N4729 3.6 69 10 100 1 252 400 1.0 1260 1N4730 3.9 64 9.0 50 1 234 400 1.0 1190 1N4731 4.3 58 9.0 10 1 217 400 1.0 1070 1N4732 4.7 53 8.0 10 1 193 500 1.0 970 1N4733 5.1 49 7.0 10 1 178 550 1.0 890 1N4734 5.6 45 5.0 10 2 162 600 1.0 810 1N4735 6.2 41 2.0 10 3 146 700 1.0 730 1N4736 6.8 37 3.5 10 4 133 700 1.0 660 1N4737 7.5 34 4.0 10 5 121 700 0.5 605 1N4738 8.2 31 4.5 10 6 110 700 0.5 550 1N4739 9.1 28 5.0 10 7 100 700 0.5 500 1N4740 10 25 7.0 10 7.6 91 700 0.25 454 1N4741 11 23 8.0 5 8.4 83 700 0.25 414 1N4742 12 21 9.0 5 9.1 76 700 0.25 380 1N4743 13 19 10 5 9.9 69 700 0.25 344 1N4744 15 17 14 5 11.4 61 700 0.25 304 Type Number Rev. 20120912 1N4728(A)-1N4764(A) 1 WATT ZENER DIODES High-reliability discrete products and engineering services since 1977 ELECTRICAL CHARACTERISTICS Type Number Zener Voltage (VZ) Test Current (lZT) Maximum Dynamic Impedance (ZZT @ lZT) Maximum Reverse Current (lR @ VR) Test Voltage (VR) Maximum Regulator Current (lZM) TA = 50°C Maximum Knee Impedance (ZZK @ lZK) Test Current (lZK) Maximum (Surge) Current (lS) VOLTS mA OHMS μA VOLTS mA OHMS mA mA 1N4745 16 15.5 16 5 12.2 57 700 0.25 285 1N4746 18 14 20 5 13.7 50 750 0.25 250 1N4747 20 12.5 22 5 15.2 45 750 0.25 225 1N4748 22 11.5 23 5 16.7 41 750 0.25 205 1N4749 24 10.5 25 5 18.2 38 750 0.25 190 1N4750 27 9.5 35 5 20.6 34 750 0.25 170 1N4751 30 8.5 40 5 22.8 30 1000 0.25 150 1N4752 33 7.5 45 5 25.1 27 1000 0.25 135 1N4753 36 7.0 50 5 27.4 25 1000 0.25 125 1N4754 39 6.5 60 5 29.7 23 1000 0.25 115 1N4755 43 6.0 70 5 32.7 22 1500 0.25 110 1N4756 47 5.5 80 5 35.8 19 1500 0.25 95 1N4757 51 5.0 95 5 38.8 18 1500 0.25 90 1N4758 56 4.5 110 5 42.6 16 2000 0.25 80 1N4759 62 4.0 125 5 47.1 14 2000 0.25 70 1N4760 68 3.7 150 5 51.7 13 2000 0.25 65 1N4761 75 3.3 175 5 56.0 12 2000 0.25 60 1N4762 82 3.0 200 5 62.2 11 3000 0.25 55 1N4763 91 2.8 250 5 69.2 10 3000 0.25 50 1N4764 100 2.5 350 5 76.0 9 3000 0.25 45 Rev. 20120912 High-reliability discrete products and engineering services since 1977 1N4728(A)-1N4764(A) 1 WATT ZENER DIODES MECHANICAL CHARACTERISTICS Case: DO-41 Marking: Body painted, alpha-numeric Polarity: Cathode band Rev. 20120912 High-reliability discrete products and engineering services since 1977 1N4728(A)-1N4764(A) 1 WATT ZENER DIODES Rev. 20120912