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1N4728A-G~1N4764A-G
SILICON ZENER DIODE
VOLTAGE
FEATURES
3.3 to 100 Volts
POWER
1.0 Watts
* Low profile package * Built-in strain relief * Low inductance * High temperature soldering : 260C /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 25C ambient temperature unless otherwise specified.
Parameter Power Dissipation at Tamb = 25 Junction Temperature Storage Temperature Range
O
Symbol
Value 1* 150 -65 to + 200
Units W
O
C
PTOT TJ TSTG
C C
O
*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. 170* 1.2
Uni ts K/W V
RJA VF
---
*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 N o m. V 1.0 Watt Zener Diodes 1N4728A-G 1N4729A-G 1N4730A-G 1N4731A-G 1N4732A-G 1N4733A-G 1N4734A-G 1N4735A-G 1N4736A-G 1N4737A-G 1N4738A-G 1N4739A-G 1N4740A-G 1N4741A-G 1N4742A-G 1N4743A-G 1N4744A-G 1N4745A-G 1N4746A-G 1N4747A-G 1N4748A-G 1N4749A-G 1N4750A-G 1N4751A-G 1N4752A-G 1N4753A-G 1N4754A-G 1N4755A-G 1N4756A-G 1N4757A-G 1N4758A-G 1N4759A-G 1N4760A-G 1N4761A-G 1N4762A-G 1N4763A-G 1N4764A-G 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 3.14 3.42 3.71 4.09 4.47 4.85 5.32 5.89 6.46 7.13 7.79 8.65 9.50 10.45 11.40 12.35 14.25 15.20 17.10 19.00 20.90 22.80 25.65 28.50 31.35 34.20 37.05 40.85 44.65 48.45 53.20 58.90 64.60 71.25 77.90 86.45 95.00 3.47 3.78 4.10 4.52 4.94 5.36 5.88 6.51 7.14 7.88 8.61 9.56 10.50 11.55 12.60 13.65 15.75 16.80 18.90 21.00 23.10 25.20 28.35 31.50 34.65 37.80 40.95 45.15 49.35 53.55 58.80 65.10 71.40 78.75 86.10 95.55 105.00 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 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350 76.00 69.00 64.00 58.00 53.00 49.00 45.00 41.00 37.00 34.00 31.00 28.00 25.00 23.00 21.00 19.00 17.00 15.50 14.00 12.50 11.50 10.50 9.50 8.50 7.50 7.00 6.50 6.00 5.50 5.00 4.50 4.00 3.70 3.30 3.00 2.80 2.50 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 1.00 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 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 0.25 100.00 100.00 50.00 10.00 10.00 10.00 10.00 10.00 5.00 5.00 5.00 0.50 0.50 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 1.00 1.00 1.00 1.00 1.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 7.60 8.40 9.10 9.90 11.40 12.20 13.70 15.20 16.70 18.20 20.60 22.80 25.10 27.40 29.70 32.70 35.80 38.80 42.60 47.10 51.70 56.00 62.20 69.20 76.00 1N4728A 1N4729A 1N4730A 1N4731A 1N4732A 1N4733A 1N4734A 1N4735A 1N4736A 1N4737A 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A 1N4743A 1N4744A 1N4745A 1N4746A 1N4747A 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A 1N4753A 1N4754A 1N4755A 1N4756A 1N4757A 1N4758A 1N4759A 1N4760A 1N4761A 1N4762A 1N4763A 1N4764A DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G DO-41G V Z @ IZT Min . V Ma x . V M a x . Ze n e r I m p e d a n c e ZZT @ IZT mA ZZK @ IZK mA A M a x i m u m Leakage Current IR @ VR V Marking C ode P a cka g e
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
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-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
FIGURE.7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
STAD-MAY.17.2006
PAGE . 4
1N4728A-G~1N4764A-G
Vz, ZENER VOLTAGE (VOLTS) FIGURE.9 TYPICAL CAPACITANCE versus Vz
FIGURE.8 TYPICAL LEAKAGE CURRENT
STAD-MAY.17.2006
m
FIGURE.10 TYPICAL FORWARD CHARACTERISTICS
PAGE . 5

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