SML4728 - SML4764 SURFACE MOUNT SILICON ZENER DIODES VZ : 3.3 - 100 Volts PD : 1 Watt SMA-L 5.4 ± 0.2 4.4 ± 0.2 1.3 ± 0.2 FEATURES : * Complete Voltage Range 3.3 to 100 Volts * High peak reverse power dissipation * High reliability * Low leakage current * Pb / RoHS Free 1.8 ± 0.2 2.3 ± 0.2 2.7 ± 0.2 MECHANICAL DATA : * Case : SMA-L Molded plastic * Epoxy : UL94V-O rate flame retardant * Polarity : Color band denotes cathode end * Mounting position : Any * Weight : 0.060 gram (Approximately) 1.8 ± 0.2 Dimensions in millimeter MAXIMUM RATINGS Rating at 25 °C ambient temperature unless otherwise specified Rating Symbol Value Unit DC Power Dissipation at TL = 75 °C (Note1) PD 1.0 W Maximum Forward Voltage at IF = 200 mA VF 1.2 V Junction Temperature Range TJ - 55 to + 150 °C Storage Temperature Range Ts - 55 to + 150 °C Note : (1) P.C.B. Mounted on 0.31x0.31x0.08" (8x8x2mm) copper areas pads. PD, MAXIMUM DISSIPATION (WATTS) Fig. 1 MAXIMUM CONTINUOUS POWER DERATING 1.25 1.00 0.75 0.50 P.C.B. Mounted on 0.31x0.31x0.08" (8x8x2mm) copper areas pads 0.25 0 0 25 50 75 100 125 150 175 TL, LEAD TEMPERATURE (°C) Page 1 of 2 Rev. 04 : November 9, 2005 ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified Nominal Zener Maximum Zener Voltage Impedance Type IZT ZZT @ IZT ZZK @ IZK IZK VZ (1) @ IZT (V) (mA) (mA) (Ω ) (Ω ) Maximum Reverse Leakage Current IR @ VR (V) (µA) Maximum DC Zener Current IZM (mA) Maximum Surge Current IRM(2) (mApk) SML4728 3.3 76.0 10 400 1.0 100 1.0 276 1380 SML4729 3.6 69.0 10 400 1.0 100 1.0 252 1260 SML4730 3.9 64.0 9.0 400 1.0 50 1.0 234 1190 SML4731 4.3 58.0 9.0 400 1.0 10 1.0 217 1070 SML4732 4.7 53.0 8.0 500 1.0 10 1.0 193 970 SML4733 5.1 49.0 7.0 550 1.0 10 1.0 178 890 SML4734 5.6 45.0 5.0 600 1.0 10 2.0 162 810 SML4735 6.2 41.0 2.0 700 1.0 10 3.0 146 730 SML4736 6.8 37.0 3.5 700 1.0 50 4.0 133 660 SML4737 7.5 34.0 4.0 700 0.5 50 5.0 121 605 SML4738 8.2 31.0 4.5 700 0.5 50 6.0 110 550 SML4739 9.1 28.0 5.0 700 0.5 50 7.0 100 500 SML4740 10 25.0 7.0 700 0.25 50 7.6 91 454 SML4741 11 23.0 8.0 700 0.25 50 8.4 83 414 SML4742 12 21.0 9.0 700 0.25 5.0 9.1 76 380 SML4743 13 19.0 10 700 0.25 5.0 9.9 69 344 SML4744 15 17.0 14 700 0.25 5.0 11.4 61 305 SML4745 16 15.5 16 700 0.25 5.0 12.2 57 285 SML4746 18 14.0 20 750 0.25 5.0 13.7 50 250 SML4747 20 12.5 22 750 0.25 5.0 15.2 45 225 SML4748 22 11.5 23 750 0.25 5.0 16.7 41 205 SML4749 24 10.5 25 750 0.25 5.0 18.2 38 190 SML4750 27 9.5 35 750 0.25 5.0 20.6 34 170 SML4751 30 8.5 40 1000 0.25 5.0 22.8 30 150 SML4752 33 7.5 45 1000 0.25 5.0 25.1 27 135 SML4753 36 7.0 50 1000 0.25 5.0 27.4 25 125 SML4754 39 6.5 60 1000 0.25 5.0 29.7 23 115 SML4755 43 6.0 70 1500 0.25 5.0 32.7 22 110 SML4756 47 5.5 80 1500 0.25 5.0 35.8 19 95 SML4757 51 5.0 95 1500 0.25 5.0 38.8 18 90 SML4758 56 4.5 110 2000 0.25 5.0 42.6 16 80 SML4759 62 4.0 125 2000 0.25 5.0 47.1 14 70 SML4760 68 3.7 150 2000 0.25 5.0 51.7 13 65 SML4761 75 3.3 175 2000 0.25 5.0 56.0 12 60 SML4762 82 3.0 200 3000 0.25 5.0 62.2 11 55 SML4763 91 2.8 250 3000 0.25 5.0 69.2 10 50 SML4764 100 2.5 350 3000 0.25 5.0 76.0 9 45 Notes : (1) Standard voltage tolerance is 10%, Suffix A ± 5% (2) Surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC Method (3) " SML " will be omitted in marking on the diode. Page 2 of 2 Rev. 04 : November 9, 2005