1N4728A-G~1N4764A-G SILICON ZENER DIODE VOLTAGE 3.3 to 100 Volts POWER 1.0 Watts FEATURES • Low profile package • Built-in strain relief • Low inductance • High temperature soldering : 260°C /10 seconds at terminals • Glass package has Underwriters Laboratory Flammability Classification • Pb free product are available : 99% Sn above can meet RoHS environment substance diective request MECHANICALDATA • Case: Molded Glass DO-41G • Terminals: Axial leads, solderable per MIL-STD-750, Method 2026 guaranteed • Polarity: Color band denotes positive end • Mounting position:Any • Weight: 0.012 ounce, 0.336 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. Parameter Power Dissipation at Tamb = 25 O C Junction Temperature Storage Temperature Range Symbol Value Units PTOT 1* W TJ 150 O C TSTG -65 to + 200 O C *Valid provided that leads at a distance of 10mm from case are kept at ambient temperature. Parameter Thermal Resi stance Juncti on to Ambi ent Ai r Forward Voltage at IF = 200mA Symbol Min. Typ. Max. Uni ts RθJA -- -- 170* K/W VF -- -- 1.2 V *Vali d provi ded that leads at a di stance of 10mm from case are kept at ambi ent temperature. STAD-MAY.17.2006 PAGE . 1 1N4728A-G~1N4764A-G N o m i n a l Ze n e r Vo l t a g e Part Number M a x . Ze n e r I m p e d a n c e V Z @ I ZT N o m. V Z ZT @ I ZT M a x i m u m Leakage Current Z ZK @ I ZK I R @ VR Min . V Ma x . V Ω mA Ω mA µA V Marking C ode P a cka g e 1.0 Watt Zener Diodes 1N4728A-G 3.3 3.14 3.47 10.0 76.00 400 1.00 100.00 1.00 1N4728A DO-41G 1N4729A-G 3.6 3.42 3.78 10.0 69.00 400 1.0 100.00 1.00 1N4729A DO-41G 1N4730A-G 3.9 3.71 4.10 9.0 64.00 400 1.0 50.00 1.00 1N4730A DO-41G 1N4731A-G 4.3 4.09 4.52 9.0 58.00 400 1.0 10.00 1.00 1N4731A DO-41G 1N4732A-G 4.7 4.47 4.94 8.0 53.00 500 1.0 10.00 1.00 1N4732A DO-41G 1N4733A-G 5.1 4.85 5.36 7.0 49.00 550 1.0 10.00 1.00 1N4733A DO-41G 1N4734A-G 5.6 5.32 5.88 5.0 45.00 600 1.0 10.00 2.00 1N4734A DO-41G 1N4735A-G 6.2 5.89 6.51 2.0 41.00 700 1.0 10.00 3.00 1N4735A DO-41G 1N4736A-G 6.8 6.46 7.14 3.5 37.00 700 1.0 5.00 4.00 1N4736A DO-41G 1N4737A-G 7.5 7.13 7.88 4.0 34.00 700 0.5 5.00 5.00 1N4737A DO-41G 1N4738A-G 8.2 7.79 8.61 4.5 31.00 700 0.5 5.00 6.00 1N4738A DO-41G 1N4739A-G 9.1 8.65 9.56 5.0 28.00 700 0.5 0.50 7.00 1N4739A DO-41G 1N4740A-G 10.0 9.50 10.50 7.0 25.00 700 0.25 0.50 7.60 1N4740A DO-41G 1N4741A-G 11.0 10.45 11.55 8.0 23.00 700 0.25 0.10 8.40 1N4741A DO-41G 1N4742A-G 12.0 11.40 12.60 9.0 21.00 700 0.25 0.10 9.10 1N4742A DO-41G 1N4743A-G 13.0 12.35 13.65 10 19.00 700 0.25 0.10 9.90 1N4743A DO-41G 1N4744A-G 15.0 14.25 15.75 14 17.00 700 0.25 0.10 11.40 1N4744A DO-41G 1N4745A-G 16.0 15.20 16.80 16 15.50 700 0.25 0.10 12.20 1N4745A DO-41G 1N4746A-G 18.0 17.10 18.90 20 14.00 750 0.25 0.10 13.70 1N4746A DO-41G 1N4747A-G 20.0 19.00 21.00 22 12.50 750 0.25 0.10 15.20 1N4747A DO-41G 1N4748A-G 22.0 20.90 23.10 23 11.50 750 0.25 0.10 16.70 1N4748A DO-41G 1N4749A-G 24.0 22.80 25.20 25 10.50 750 0.25 0.10 18.20 1N4749A DO-41G 1N4750A-G 27.0 25.65 28.35 35 9.50 750 0.25 0.10 20.60 1N4750A DO-41G 1N4751A-G 30.0 28.50 31.50 40 8.50 1000 0.25 0.10 22.80 1N4751A DO-41G 1N4752A-G 33.0 31.35 34.65 45 7.50 1000 0.25 0.10 25.10 1N4752A DO-41G 1N4753A-G 36.0 34.20 37.80 50 7.00 1000 0.25 0.10 27.40 1N4753A DO-41G 1N4754A-G 39.0 37.05 40.95 60 6.50 1000 0.25 0.10 29.70 1N4754A DO-41G 1N4755A-G 43.0 40.85 45.15 70 6.00 1500 0.25 0.10 32.70 1N4755A DO-41G 1N4756A-G 47.0 44.65 49.35 80 5.50 1500 0.25 0.10 35.80 1N4756A DO-41G 1N4757A-G 51.0 48.45 53.55 95 5.00 1500 0.25 0.10 38.80 1N4757A DO-41G 1N4758A-G 56.0 53.20 58.80 110 4.50 2000 0.25 0.10 42.60 1N4758A DO-41G 1N4759A-G 62.0 58.90 65.10 125 4.00 2000 0.25 0.10 47.10 1N4759A DO-41G 1N4760A-G 68.0 64.60 71.40 150 3.70 2000 0.25 0.10 51.70 1N4760A DO-41G 1N4761A-G 75.0 71.25 78.75 175 3.30 2000 0.25 0.10 56.00 1N4761A DO-41G 1N4762A-G 82.0 77.90 86.10 200 3.00 3000 0.25 0.10 62.20 1N4762A DO-41G 1N4763A-G 91.0 86.45 95.55 250 2.80 3000 0.25 0.10 69.20 1N4763A DO-41G 1N4764A-G 100 95.00 105.00 350 2.50 3000 0.25 0.10 76.00 1N4764A DO-41G STAD-MAY.17.2006 PAGE . 2 1N4728A-G~1N4764A-G 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 P D , MAXIMUM POWER DISSIPATION (WATTS) RATING AND CHARACTERISTICS CURVES 1.0 L=LEAD LENGTH TO HEAT SINK 0.75 0.5 0.25 0 0 20 40 60 80 100 120 140 160 180 200 O 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-MAY.17.2006 PAGE . 3 1N4728A-G~1N4764A-G FIGURE.3TYPICAL THERMAL RESISTANCE versus LEAD LENGTH FIGURE.4 EFFECT OF ZENER CURRENT FIGURE.5 MAXIMUM SURGE POWER FIGURE.6 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE STAD-MAY.17.2006 FIGURE.7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE PAGE . 4 1N4728A-G~1N4764A-G Vz, ZENER VOLTAGE (VOLTS) m FIGURE.9 TYPICAL CAPACITANCE versus Vz FIGURE.8 TYPICAL LEAKAGE CURRENT STAD-MAY.17.2006 FIGURE.10 TYPICAL FORWARD CHARACTERISTICS PAGE . 5