1W SURFACE MOUNT ZENER DIODES DL4728A THRU DL4764A Features * 1.0W Power Dissipation * 3.9V - 100V Nominal Zener Voltages * Standard VZ Tolerance is 5% MELF (DO-41) SOLDERABLE ENDS 0.024(0.60) 0.018(0.46) Mechanical Data 0.105(2.70) 0.095(2.40) 0.205(5.20) 0.190(4.80) * Case : MELF(DO-41) glass * Terminals : Solderable per MIL-STD-202, method 208 * Polarity : Cathode band Dimensions in inches and (millimeters) * Approx. Weight : 0.25 grams Absolute Maximum Ratings (Limiting Values) (TA=25) Symbols Value Units Zener current see table "Characteristics" Iz Pd/Vz mA Power dissipation at TA=25 (Note 1) Pd 1 W RJA VF 170 K/W 1.2 V TJ, TSTG -65 to +200 Thermal resistance - Junction to ambient air (Note 1) Forward voltage at IF=200 mA Operating & storage temperature range Notes : (1) Valid provided that electrodes of the case ard kept at ambient temperature. (2) Measured under thermal equilibrium and DC (IZT) test conditions. (3) The Zener impedance is derived from the 60Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current (IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. ELECTRICAL CHARACTERISTIC at (TA=25 unless other specified) T ype Number Nominal Zener V oltage (2) T es t C urrent V Z @ I ZT I ZT V Maximum Zener Impedanc e (3) Maximum R evers e L eakage C urrent Max S urge Maximum C urrent Zener 8.3ms C urrent Z ZT @ I ZT Z ZK @ I ZK I ZK IR @ VR I ZS I ZM m mA A V mA mA 276 DL4728A 3.3 76 10 400 1.0 100 1.0 1380 DL4729A 3.6 69 10 400 1.0 100 1.0 1260 252 DL4730A 3.9 64 9.0 400 1.0 50 1.0 1190 234 DL4731A 4.3 58 9.0 400 1.0 10 1.0 1070 217 DL4732A 4.7 53 8.0 500 1.0 10 1.0 970 193 DL4733A 5.1 49 7.0 550 1.0 10 1.0 890 178 DL4734A 5.6 45 5.0 600 1.0 10 2.0 810 162 DL4735A 6.2 41 2.0 700 1.0 10 3.0 730 146 DL4736A 6.8 37 3.5 700 1.0 10 4.0 660 133 DL4737A 7.5 34 4.0 700 0.5 10 5.0 605 121 DL4738A 8.2 31 4.5 700 0.5 10 6.0 550 110 DL4739A 9.1 28 5.0 700 0.5 10 7.0 500 100 DL4740A 10 25 7.0 700 0.25 10 7.6 454 91 DL4741A 11 23 8.0 700 0.25 5.0 8.4 414 83 DL4742A 12 21 9.0 700 0.25 5.0 9.1 380 76 DL4743A 13 19 10 700 0.25 5.0 9.9 344 69 DL4744A 15 17 14 700 0.25 5.0 11.4 304 61 DL4745A 16 15.5 16 700 0.25 5.0 12.2 285 57 DL4746A 18 14 20 750 0.25 5.0 13.7 250 50 DL4747A 20 12.5 22 750 0.25 5.0 15.2 225 45 DL4748A 22 11.5 23 750 0.25 5.0 16.7 205 41 DL4749A 24 10.5 25 750 0.25 5.0 18.2 190 38 DL4750A 27 9.5 35 750 0.25 5.0 20.6 170 34 DL4751A 30 8.5 40 1000 0.25 5.0 22.8 150 30 DL4752A 33 7.5 45 1000 0.25 5.0 25.1 135 27 DL4753A 36 7.0 50 1000 0.25 5.0 27.4 125 25 DL4754A 39 6.5 60 1000 0.25 5.0 29.7 115 23 DL4755A 43 6.0 70 1500 0.25 5.0 32.7 110 22 DL4756A 47 5.5 80 1500 0.25 5.0 35.8 95 19 DL4757A 51 5.0 95 1500 0.25 5.0 38.8 90 18 DL4758A 56 4.5 110 2000 0.25 5.0 42.6 80 16 DL4759A 62 4.0 125 2000 0.25 5.0 47.1 70 14 DL4760A 68 3.7 150 2000 0.25 5.0 51.7 65 13 DL4761A 75 3.3 175 2000 0.25 5.0 56.0 60 12 DL4762A 82 3.0 200 3000 0.25 5.0 62.2 55 11 DL4763A 91 2.8 250 3000 0.25 5.0 69.2 50 10 DL4764A 100 2.5 350 3000 0.25 5.0 76.0 45 9.0 RATINGS AND CHARACTERISTIC CURVES DL4728A THRU DL4764A 1.0 Pd , P OWER DISSIPAT ION ( W) 0.8 0.6 0.4 0.2 0 1 100 T A , AMBIENT TEMPERA TURE (C) Fig. 1, Power Derating Curve 200