1N4728A~1N4761A Zener diode Voltage Range 3.3 to 75 Volts DO-41 Features 1.High reliability 2.Very sharp reverse characteristic 3.Low reverse current level 4.Vz-tolerance*5% 1.0(25.4) MIN. .107(2.7) .080(2.0) DIA. Applications Voltage stabilization .205(5.2) .166(4.2) 1.0(25.4) MIN. Absoluto Maximum Ratings 0 .034(.86) .028(.71) DIA. Tj=25 C Dimensions in inches and (millimeters) Symbol Value Unit PD 1 W Z-current lz PD/Vz mA Junction temperature Tj 200 0C Tstg -65~+175 0C Parameter Test Conditions Type Tamb*500C Power dissipation Storage temperature range Maximum Thermal Resistance Tj=250C Parameter Junction ambient Test Condltions Symbol Value Unit I=9.5mm(3/8") TL=constant RthJA 100 K/W Electrcal Characteristics Tj=250C Parameter Forward voltage Test Conditions lF=200mA Type Symbol VF Min Typ Max Unit 1.2 V Type 1N4728A 1N4729A 1N4730A 1N4731A 1N4732A 1N4733A 1N4734A 1N4735A 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 Vznom V 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 lzt for Vzt and r mA * 76 <10 69 <10 64 <9 58 <9 53 <8 49 <7 45 <5 41 <2 37 <3.5 34 <4.0 31 <4.5 28 <5.0 25 <7 23 <8 21 <9 19 <10 17 <14 15.5 <16 14 <20 12.5 <22 11.5 <23 10.5 <25 9.5 <35 8.5 <40 7.5 <45 7.0 <50 6.5 <60 6.0 <70 5.5 <80 5.0 <95 4.5 <110 4.0 <125 3.7 <150 3.3 <175 Rzk * <400 <400 <400 <400 <500 <550 <600 <700 <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 at lzk mA 1 1 1 1 1 1 1 1 1 0.5 0.5 0.5 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 lR at VR uA <100 <100 <50 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 1)Based on DC-measurement at thermal equilibrium while maintaining the temperature (TL)at 300C, 9.5mm(3/8") from the diode body. V 1 1 1 1 1 1 2 3 4 5 6 7 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56