DL4728A~DL4764A Zener diode Features 1. High reliability 2. Very sharp reverse characteristic 3. Low reverse current level 4. VZ-tolerance5% Applications Voltage stabilization Absolute Maximum Ratings Tj=25 Parameter Test Conditions Type Symbol Value Unit PV 1 W Z-current IZ PV/VZ mA Junction temperature Tj 200 Tstg -65~+175 Symbol Value Unit RthJA 100 K/W Tamb50 Power dissipation Storage temperature range Maximum Thermal Resistance Tj=25 Parameter Junction ambient Test Conditions I=9.5mm(3/8") TL=constant Electrical Characteristics Tj=25 Parameter Forward voltage Test Conditions Type IF=200mA Symbol VF Min Typ Max Unit 1.2 V Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3d, 1-Jan-2006 1/4 DL4728A~DL4764A VZnom1) IZT for rzjT rzjK at IZK IR at VR V mA mA A V DL4728A 3.3 76 <10 <400 1 <100 1 DL4729A 3.6 69 <10 <400 1 <100 1 DL4730A 3.9 64 <9 <400 1 <50 1 DL4731A 4.3 58 <9 <400 1 <10 1 DL4732A 4.7 53 <8 <500 1 <10 1 DL4733A 5.1 49 <7 <550 1 <10 1 DL4734A 5.6 45 <5 <600 1 <10 2 DL4735A 6.2 41 <2 <700 1 <10 3 DL4736A 6.8 37 <3.5 <700 1 <10 4 DL4737A 7.5 34 <4.0 <700 0. 5 <10 5 DL4738A 8.2 31 <4.5 <700 0. 5 <10 6 DL4739A 9.1 28 <5.0 <700 0. 5 <10 7 DL4740A 10 25 <7 <700 0.25 <10 7.6 DL4741A 11 23 <8 <700 0.25 <5 8.4 DL4742A 12 21 <9 <700 0.25 <5 9.1 DL4743A 13 19 <10 <700 0.25 <5 9.9 DL4744A 15 17 <14 <700 0.25 <5 11.4 DL4745A 16 15.5 <16 <700 0.25 <5 12.2 DL4746A 18 14 <20 <750 0.25 <5 13.7 DL4747A 20 12.5 <22 <750 0.25 <5 15.2 DL4748A 22 11.5 <23 <750 0.25 <5 16.7 DL4749A 24 10.5 <25 <750 0.25 <5 18.2 DL4750A 27 9.5 <35 <750 0.25 <5 20.6 DL4751A 30 8.5 <40 <1000 0.25 <5 22.8 DL4752A 33 7.5 <45 <1000 0.25 <5 25.1 DL4753A 36 7.0 <50 <1000 0.25 <5 27.4 DL4754A 39 6.5 <60 <1000 0.25 <5 29.7 DL4755A 43 6.0 <70 <1500 0.25 <5 32.7 DL4756A 47 5.5 <80 <1500 0.25 <5 35.8 DL4757A 51 5.0 <95 <1500 0.25 <5 38.8 DL4758A 56 4.5 <110 <2000 0.25 <5 42.6 DL4759A 62 4.0 <125 <2000 0.25 <5 47.1 DL4760A 68 3.7 <150 <2000 0.25 <5 51.7 DL4761A 75 3.3 <175 <2000 0.25 <5 56 DL4762A 82 3.0 <200 <3000 0.25 <5 62.2 DL4763A 91 2.8 <250 <3000 0.25 <5 69.2 DL4764A 100 2.5 <350 <3000 0.25 <5 76 1) Based on DC-measurement at thermal equilibrium while maintaining the lead temperature(TL)at 30, Type 9.5mm(3/8") from the diode body. Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3d, 1-Jan-2006 2/4 DL4728A~DL4764A Characteristics (Tj=25 unless otherwise specified) Symbol Parameter Vz Reverse zener voltage @ IZT IZT Reverse current ZZT Maximum zener impedance @ IZT IZK Reverse current ZZK Maximum zener impedance @ IZK IR Reverse leakage current @ VR VR Breakdown voltage IF Forward current VF Forward voltage @ IF Figure 1. Zener voltage regulator Figure 2. Temperature coefficients (-55 to +150 temperature range; 90% of the units are in the ranges indicated) Figure 3. Effect of zener current on zener impedance Figure 4. Effect of zener voltage on zener impedance Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3d, 1-Jan-2006 3/4 DL4728A~DL4764A Dimensions in mm Cathode identification 0.4 2.60.2 0.4 5.00.2 2.8max Standard Glass Case JEDEC LL 41 Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3d, 1-Jan-2006 4/4