NOT RECOMMENDED FOR NEW DESIGNS M C C 1N4728 1N4728A Micro Commercial Components TM 20736 Marilla Street Chatsworth Micro Commercial Components THRTHRUU CA 91311 Phone: (818) 701-4933 1N4761A 1N476 Fax: (818) 701-4933 Features 1.0 Watt Hermetic Glass Package Silicon Planar Zener Diodes Zener Diode Lead Free Finish/Rohs Compliant (Note2) Suffix designates Compliant. See ordering information) 3.3 to 75 Volts Moisture Sensitivity: Level 1 Mechanical Data DO-41G Case: DO-41 Glass Package Marking : Cathode band and type number Weight: 0.309 grams (Approx.) D Maximum Ratings o o Operating Temperature: -65 C to +200 C o o Storage Temperature: -65 C to +200 C A For capacitive load, derate current by 20% Cathode Mark B o D Electrical Characteristics 25 C Unless Otherwise Specified DC Power O P 1.0W T 50 C d A Dissipation C Forward VF 1.2V Voltage Drop Thermal R 100K/W Note 1 thJA Resistance DIMENSIONS Power Derating o INCHES M M o P 10mW/ C tot DIM NOTE from 100 C MIN MAX MIN MAX A ----- 0.177 ----- 4.50 2.80 ----- 0.110 ----- Diameter Note: (1) Valid provided that electrodes at a distance B C 0.026 0.034 0.70 0.90 Diameter of 10mm from case are kept at ambient D 1.000 ----- 25.40 ----- temperature. (2). Lead in Glass Exemption Applied, see EU Directive Annex 7(C)-I w w w mme s c c i mo c . Revision: B 2012/08/23 1 of 41N4728A thru 1N4761A M M C C C C TM Micro Commercial Components Electrical Characteristics (T = 25C unless otherwise noted). Maximum V = 1.2V at I = 200mA A F F Maximum Dynamic Impedance Maximum Reverse MCC Zener Test Surge Maximum Regulator Leakage Current Part Number Voltage Current Current Current V I I Z I Z I I I V V I I Z ZT ZT ZT ZT ZK ZK ZK R R R R ZM Volts mA OHMS OHMS mA A Volts mA mA 1N4728A 3.3 76 10 4001 100 1 1380 276 1N4729A 3.6 69 10 4001 100 1 1260 252 1N4730A 3.9 64 9 400 1 50 1 1190 234 1N4731A 4.3 58 9 400 1 10 1 1070 217 1N4732A 4.7 53 8 500 1 10 1 970 193 1N4733A 5.1 49 7 550 1 10 1 890 178 1N4734A 5.6 45 5 600 1 10 2 810 162 1N4735A 6.2 41 2 700 1 10 3 730 146 1N4736A 6.8 37 3.5 700 1 10 4 660 133 1N4737A 7.5 34 4 700 0.5 10 5 605 121 1N4738A 8.2 31 4.5 700 0.5 10 6 550 110 1N4739A 9.1 28 5 700 0.5 10 7 500 100 1N4740A 10 25 7 700 0.25 10 7.6 454 91 1N4741A 11 23 8 700 0.25 5 8.4 414 83 1N4742A 12 21 9 700 0.25 5 9.1 380 76 1N4743A 13 19 10 700 0.25 5 9.9 344 69 1N4744A 15 17 14 700 0.255 11.4 304 61 1N4745A 16 15.5 16 700 0.255 12.2 285 57 1N4746A 18 14 20 750 0.255 13.7 250 50 1N4747A 20 12.5 22 750 0.255 15.2 225 45 1N4748A 22 11.5 23 750 0.255 16.7 205 41 1N4749A 24 10.5 25 750 0.255 18.2 190 38 1N4750A 27 9.5 35 750 0.255 20.6 170 34 1N4751A 30 8.5 40 1000 0.255 22.8 150 30 1N4752A 33 7.5 45 1000 0.255 25.1 135 27 1N4753A 36 7 50 1000 0.255 27.4 125 25 1N4754A 39 6.5 60 1000 0.255 29.7 115 23 1N4755A 43 6 70 1500 0.255 32.7 110 22 1N4756A 47 5.5 80 1500 0.255 35.8 95 19 1N4757A 51 5 95 1500 0.255 38.8 90 18 1N4758A 56 4.5 110 2000 0.255 42.6 80 16 1N4759A 62 4 125 2000 0.255 47.1 70 14 1N4760A 68 3.7 150 2000 0.255 51.7 65 13 1N4761A 75 3.3 175 2000 0.25 5 56 60 12 Note 1: The JEDEC type number shown with an A suffix have a 5% tolerance on nominal zener voltage. C signifies 2%. 2: 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 DC Zener current(I or I ) is superimposed on I or I . Zener ZT ZK ZT ZK impedance is measured at two points to insure a sharp knee on the breakdown curve and eliminate unstable units. o 3: The reverse surge current is measured at 25 C ambient using a 1/2 square wave or equivalent sine wave pulse 1/120 second duration superimposed on I . ZT 4: Voltage measurements tobe performed 90 seconds after application of DC current. 5: RoHs Compliant already and Pb-free sticker on reel , box & carton indicated RoHs compliant w w w mme s c c i mo c . Revision: B 2012/08/23 2 of 4