SMA4728A THRU SMA4764A 1W SURFACE MOUNT SILICON ZENER DIODE VZ : 3.3 ~ 100 Volts PD : 1 Watt SMA(DO-214AC) FEATURES : .062(1.60) .055(1.40) * Complete Voltage Range 3.3 to 100 Volts * High peak reverse power dissipation * High reliability * Low leakage current .114(2.90) .098(2.50) .181(4.60) .157(4.00) .012(.305) .006(.152) MECHANICAL DATA * Case : SMA (DO-214AC) Molded plastic * Epoxy : UL94V-O rate flame retardant * Lead : Lead formed for Surface mount * Polarity : Color band denotes cathode end * Mounting position : Any * Weight : 0.064 gram .103(2.62) .079(2.00) .060(1.52) .030(0.76) .208(5.28) .188(4.80) .008(.203) .002(.051) Dimensions in inches and (millimeters) MAXIMUM RATINGS Rating at 25 ° C ambient temperature unless otherwise specified Rating Symbol Value Unit DC Power Dissipation at TL = 50 °C (Note1) PD 1.0 Watt Maximum Forward Voltage at IF = 200 mA VF 1.2 Volts Junction Temperature Range TJ - 55 to + 150 °C Storage Temperature Range Ts - 55 to + 150 °C Note : (1) TL = Lead temperature at 5.0 mm2 ( 0.013 mm thick ) copper land areas. PD, MAXIMUM DISSIPATION (WATTS) Fig. 1 POWER TEMPERATURE DERATING CURVE 1.25 5.0 mm2 ( 0.013 mm thick ) copper land areas. 1.00 0.75 0.50 0.25 0 0 25 50 75 100 125 TL, LEAD TEMPERATURE (°C) 150 175 SMA4728A THRU SMA4764A 1W EPITAXIAL ZENER DIODE Nominal Zener voltage Test current VZ (1)at IZT IZT ZZT at IZT ZZK at IZK IZK IR Test voltage VR IRM(2) V mA Ω Ω mA μA V mA SMA4728A 3.3 76 10 400 1 100 1 1380 SMA4729A 3.6 69 10 400 1 100 1 1260 SMA4730A 3.9 64 9 400 1 50 1 1190 SMA4731A 4.3 58 9 400 1 10 1 1070 SMA4732A 4.7 53 8 500 1 10 1 970 SMA4733A 5.1 49 7 550 1 10 1 890 SMA4734A 5.6 45 5 600 1 10 2 810 SMA4735A 6.2 41 2 700 1 10 3 730 SMA4736A 6.8 37 3.5 700 1 10 4 660 SMA4737A 7.5 34 4 700 0.5 10 5 605 SMA4738A 8.2 31 4.5 700 0.5 10 6 550 SMA4739A 9.1 28 5 700 0.5 10 7 500 SMA4740A 10 25 7 700 0.25 10 7.6 454 SMA4741A 11 23 8 700 0.25 5 8.4 414 SMA4742A 12 21 9 700 0.25 5 9.1 380 SMA4743A 13 19 10 700 0.25 5 9.9 344 SMA4744A 15 17 14 700 0.25 5 11.4 304 SMA4745A 16 15.5 16 700 0.25 5 12.2 285 SMA4746A 18 14 20 750 0.25 5 13.7 250 SMA4747A 20 12.5 22 750 0.25 5 15.2 225 SMA4748A 22 11.5 23 750 0.25 5 16.7 205 SMA4749A 24 10.5 25 750 0.25 5 18.2 190 SMA4750A 27 9.5 35 750 0.25 5 20.6 170 SMA4751A 30 8.5 40 1000 0.25 5 22.8 150 SMA4752A 33 7.5 45 1000 0.25 5 25.1 135 SMA4753A 36 7 50 1000 0.25 5 27.4 125 SMA4754A 39 6.5 60 1000 0.25 5 29.7 115 SMA4755A 43 6 70 1500 0.25 5 32.7 110 SMA4756A 47 5.5 80 1500 0.25 5 35.8 95 SMA4757A 51 5 95 1500 0.25 5 38.8 90 SMA4758A 56 4.5 110 2000 0.25 5 42.6 80 SMA4759A 62 4 125 2000 0.25 5 47.1 70 SMA4760A 68 3.7 150 2000 0.25 5 51.7 65 SMA4761A 75 3.3 175 2000 0.25 5 56 60 SMA4762A 82 3.0 200 3000 0.25 5 62.2 55 SMA4763A 91 2.8 250 3000 0.25 5 69.2 50 SMA4764A 100 2.5 350 3000 0.25 5 76.0 45 Part Number Maximum dynamic impedance resistance Maximum reverse leakage current Max Surge current Notes : (1) The type number listed have a standard tolerance on the nominal zener voltage of ± 5%. (2) The revese surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC Method