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| DATA SHEET 1SMA4728~1SMA4764 SURFACE MOUNT SILICON ZENER DIODE VOLTAGE FEATURES * For surface mounted applications in order to optimize board space. * Low profile package * Built-in strain relief * Glass passivated junction * Low inductance * Typical IR less than 5.0A above 11V * Plastic package has Underwriters Laboratory Flammability Classification 94V-O * High temperature soldering : 260C /10 seconds at terminals .096(2.44) .062(1.60) .047(1.20) .114(2.90) .098(2.50) 3.3 to 100 Volts POWER 1.0 Watts SMA/DO-214AC Unit: inch (mm) .181(4.60) .157(4.00) environment substance directive request MECHANICALDATA Case: JEDEC DO-214AC,Molded plastic over passivated junction. Terminals: Solder plated,solderable per MIL-STD-202G, Method 208 Polarity: Color band denotes positive end (cathode) Standard Packaging:12mm tape (EIA-481) Weight: 0.002 ounce, 0.064 gram .060(1.52) .030(0.76) .078(2.00) * Pb free product are available : 99% Sn above can meet Rohs .012(.305) .006(.152) .008(.203) .002(.051) .208(5.28) .188(4.80) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25C ambient temperature unless otherwise specified. P ar m et r a e Ne P w ak P ul e P ow erD i si aton on TA =50 C ( ot s A ) s spi D er t above 50O C ae P eak For ar S ur e C urent8. m s si gl hal si e- ave wd g r 3 ne fnw superm posed on r t d l ad ( E D E C m et od) i ae o J h O per tng Juncton and S t r ge Tem per t r R ange ai i oa aue O S ym bol Val e u 1. 0 6. 7 6 10 - 5 t + 150 5o U nis t W ats t m W /O C A m ps O PD I FSM TJ, STG T C NOTES: A. Mounted on 5.0mm2 (.013mm thick) land areas. B. Measured on8.3ms, and single half sine-wave or equivalent square wave ,duty cycle=4 pulses per minute maximum. C. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of 5%. STAD-JAN.27.2005 PAGE . 1 Part Number Nom. V V Z @ IZT Maximum Zener Impedance ZZT @ IZT ZZK @ IZK O mA Maximum Leakage Current IR @V R uA V Marking Code Package Min. V Max. V O mA 1.0 Watt ZENER Diodes -- continued 1SMA4728 1SMA4729 1SMA4730 1SMA4731 1SMA4732 1SMA4733 1SMA4734 1SMA4735 1SMA4736 1SMA4737 1SMA4738 1SAM4739 1SMA4740 1SMA4741 1SMA4742 1SMA4743 1SMA4744 1SMA4745 1SMA4746 1SMA4747 1SMA4748 1SMA4749 1SMA4750 1SMA4751 1SMA4752 1SMA4753 1SMA4754 1SMA4755 1SMA4756 1SMA4757 1SMA4758 1SMA4759 1SMA4760 1SMA4761 1SMA4762 1SMA4763 1SMA4764 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10.0 11.0 12.0 13.0 15.0 16.0 18.0 20.0 22.0 24.0 27.0 30.0 33.0 36.0 39.0 43.0 47.0 51.0 56.0 62.0 68.0 75.0 82.0 91.0 100 3.1 3.4 3.7 4.1 4.5 4.8 5.3 5.9 6.5 7.1 7.8 8.6 9.5 10.5 11.4 12.4 14.3 15.2 17.1 19.0 20.9 22.8 25.7 28.5 31.4 34.2 37.1 40.9 44.7 48.5 53.2 58.9 64.6 71.3 77.9 86.5 95.0 3.5 3.8 4.1 4.5 4.9 5.4 5.9 6.5 7.1 7.9 8.6 9.6 10.5 11.6 12.6 13.7 15.8 16.8 18.9 21.0 23.1 25.2 28.4 31.5 34.7 37.8 41 45.2 49.4 53.6 58.8 65.1 71.4 78.8 86.1 95.6 105 10.0 10.0 9.0 9.0 8.0 7.0 5.0 2.0 3.5 4.0 4.5 5.0 7.0 8.0 9.0 10.0 14.0 16.0 20.0 22.0 23.0 25.0 35.0 40.0 45.0 50.0 60.0 70.0 80.0 95.0 110 125 150 175 200 250 350 76.0 69.0 64.0 58.0 53.0 49.0 45.0 41.0 37.0 34.0 31.0 28.0 25.0 23.0 21.0 19.0 17.0 15.5 14.0 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.50 0.50 0.50 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 0.25 0.25 0.25 100 100 50 10 10 10 10 10 10 10 10 10 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.0 1.0 1.0 1.0 1.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 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 56.0 62.2 69.2 76.0 728B 729B 730B 731B 732B 733B 734B 735B 736B 737B 738B 739B 740B 741B 742B 743B 744B 745B 746B 747B 748B 749B 750B 751B 752B 753B 754B 755B 756B 757B 758B 759B 760B 761B 762B 763B 764B SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA SMA STD-JAN.27.2005 PAGE . 2 NOTE: 1. Tolerance and Type Number Designation. The type umbers listed have a standard tolerance on the nominal zener voltage of + 5% 2. Specials Available Include: A. Nominal zener voltages between the voltages shown and tighter voltage tolerances. B. Matched sets. 3. Zener Voltage (Vz) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining o o the lead temperature (T L ) at 30 C + 1 C, from the diode body. 4. Zener Impedance (Zz) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (Izt or Izk) is superimposed on Izt or Izk. 5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 RATING AND CHARACTERISTICS CURVES P D , MAXIMUM POWER DISSIPATION (WATTS) 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 O 200 T L , LEAD TEMPERATURE ( C) FIGURE.1 POWER TEMPERATURE DERATING CURVE a.RANGE FOR UNITS TO 12 VOLTS b.RANGE FOR UNITS 12 TO 100 VOLTS FIGURE.2 TEMPERATURE COEFICIENTS (-55 OC TO +150 OC TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.) STAD-JAN.27.2005 PAGE . 3 FIGURE.3TYPICAL THERMAL RESISTANCE versus LEAD LENGTH FIGURE.4 EFFECT OF ZENER CURRENT FIGU R E.5 MAXIMUM SURGE POWER FIGURE.6 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE FIGURE.7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE STAD-JAN.27.2005 PAGE . 4 Vz, ZENER VOLTAGE (VOLTS) FIGURE.9 TYPICAL CAPACITANCE versus Vz FIGURE.8 TYPICAL LEAKAGE CURRENT m FIGURE.10 TYPICAL FORWARD CHARACTERISTICS STAD-JAN.27.2005 PAGE . 5 |
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