Diodes SMD Type Zener Diodes 1SMA4728~4764 ■ Features Unit: mm ● Low profile package 4.32 4.12 4.597 3.988 2.126 1.397 ● Typical IR less than 5.0 μA above 11V 1 2 2.896 2.22 2.489 2.02 2.75 2.55 5.87 5.67 5.668 4.925 2.438 1.981 1.524 0.762 0.203 0.051 Recommended Land Pattern 0.305 0.152 ■ Absolute Maximum Ratings Ta = 25℃ Parameter Symbol Rating Unit Peak forward surge current IFM 10 A Power Dissipation Pd 1.0 W Junction Temperature TJ 150 Tstg -55 to 150 Storage temperature range ℃ 1 Diodes SMD Type 1SMA4728~4764 ■ Electrical Characteristics Ta = 25℃ Maximum Zener Impedance V Z @ IZT Part Number Nom. V Min. V Maximum Leakage Current IR @V R Marking Code Package 1.0 728B SMA ZZT @ IZT ZZK @ IZK Max. V O mA O mA uA V 3.5 10.0 76.0 400 1.00 100 1.0 Watt ZENER Diodes -- continued 1SMA4728 2 3.3 3.1 1SMA4729 3.6 3.4 3.8 10.0 69.0 400 1.00 100 1.0 729B SMA 1SMA4730 3.9 3.7 4.1 9.0 64.0 400 1.00 50 1.0 730B SMA 1SMA4731 4.3 4.1 4.5 9.0 58.0 400 1.00 10 1.0 731B SMA 1SMA4732 4.7 4.5 4.9 8.0 53.0 500 1.00 10 1.0 732B SMA 1SMA4733 5.1 4.8 5.4 7.0 49.0 550 1.00 10 1.0 733B SMA 1SMA4734 5.6 5.3 5.9 5.0 45.0 600 1.00 10 2.0 734B SMA 1SMA4735 6.2 5.9 6.5 2.0 41.0 700 1.00 10 3.0 735B SMA 1SMA4736 6.8 6.5 7.1 3.5 37.0 700 1.00 10 4.0 736B SMA 1SMA4737 7.5 7.1 7.9 4.0 34.0 700 0.50 10 5.0 737B SMA 1SMA4738 8.2 7.8 8.6 4.5 31.0 700 0.50 10 6.0 738B SMA 1SAM4739 9.1 8.6 9.6 5.0 28.0 700 0.50 10 7.0 739B SMA 1SMA4740 10.0 9.5 10.5 7.0 25.0 700 0.25 10 7.6 740B SMA 1SMA4741 11.0 10.5 11.6 8.0 23.0 700 0.25 0.1 8.4 741B SMA 1SMA4742 12.0 11.4 12.6 9.0 21.0 700 0.25 0.1 9.1 742B SMA 1SMA4743 13.0 12.4 13.7 10.0 19.0 700 0.25 0.1 9.9 743B SMA 1SMA4744 15.0 14.3 15.8 14.0 17.0 700 0.25 0.1 11.4 744B SMA 1SMA4745 16.0 15.2 16.8 16.0 15.5 700 0.25 0.1 12.2 745B SMA 1SMA4746 18.0 17.1 18.9 20.0 14.0 750 0.25 0.1 13.7 746B SMA 1SMA4747 20.0 19.0 21.0 22.0 12.5 750 0.25 0.1 15.2 747B SMA 1SMA4748 22.0 20.9 23.1 23.0 11.5 750 0.25 0.1 16.7 748B SMA 1SMA4749 24.0 22.8 25.2 25.0 10.5 750 0.25 0.1 18.2 749B SMA 1SMA4750 27.0 25.7 28.4 35.0 9.5 750 0.25 0.1 20.6 750B SMA 1SMA4751 30.0 28.5 31.5 40.0 8.5 1000 0.25 0.1 22.8 751B SMA 1SMA4752 33.0 31.4 34.7 45.0 7.5 1000 0.25 0.1 25.1 752B SMA 1SMA4753 36.0 34.2 37.8 50.0 7.0 1000 0.25 0.1 27.4 753B SMA 1SMA4754 39.0 37.1 41 60.0 6.5 1000 0.25 0.1 29.7 754B SMA 1SMA4755 43.0 40.9 45.2 70.0 6.0 1500 0.25 0.1 32.7 755B SMA 1SMA4756 47.0 44.7 49.4 80.0 5.5 1500 0.25 0.1 35.8 756B SMA 1SMA4757 51.0 48.5 53.6 95.0 5.0 1500 0.25 0.1 38.8 757B SMA 1SMA4758 56.0 53.2 58.8 110 4.5 2000 0.25 0.1 42.6 758B SMA 1SMA4759 62.0 58.9 65.1 125 4.0 2000 0.25 0.1 47.1 759B SMA 1SMA4760 68.0 64.6 71.4 150 3.7 2000 0.25 0.1 51.7 760B SMA 1SMA4761 75.0 71.3 78.8 175 3.3 2000 0.25 0.1 56.0 761B SMA 1SMA4762 82.0 77.9 86.1 200 3.0 3000 0.25 0.1 62.2 762B SMA 1SMA4763 91.0 86.5 95.6 250 2.8 3000 0.25 0.1 69.2 763B SMA 1SMA4764 100 95.0 105 350 2.5 3000 0.25 0.1 76.0 764B SMA Diodes SMD Type 1SMA4728~4764 P D , M A X IM U M P O W E R D IS S IP A T IO N (W A T T S ) ■ Typical Characterisitics 1.0 L=LEAD LENGTH TO HEAT SINK 0.75 0.5 0.25 0 0 20 40 60 80 100 120 140 160 180 T L, LEAD TEMPERATURE ( C) 200 O FIGURE.1 POWER TEMPERATURE DERATING CURVE a.RANGE FOR UNITS TO 12 VOLTS b.RANGE FOR UNITS 12 TO 100 VOLTS 3 Diodes SMD Type 1SMA4728~4764 ■ Typical Characterisitics FIGURE.3TYPICAL THERMAL RESISTANCE FIGURE.4 EFFECT OF ZENER CURRENT FIG U R E.5 MAXIMUM SURGE POWER 4 Diodes SMD Type 1SMA4728~4764 ■ Typical Characterisitics m Vz, ZENER VOLTAGE (VOLTS) FIGURE.10 TYPICAL FORWARD CHARACTERISTICS 5