1N4736A~1N4757A
SILICON ZENER DIODE VOLTAGE 6.8 to 51 Volts
FEATURES
• Low profile package
1.0(25.4)MIN.
POWER
1.0 Watts
DO-41
Unit: inch(mm)
• Built-in strain relief • Low inductance • High temperature soldering : 260°C /10 seconds at terminals • Plastic package has Underwriters Laboratory Flammability Classification 94V-O • In compliance with EU RoHS 2002/95/EC directives
.034(.86) .028(.71)
MECHANICALDATA
• Case: Molded plastic DO-41 • Epoxy:UL 94V-O rate flame retardant • Terminals: Axial leads, solderable per MIL-STD-750, Method 2026 guaranteed • Polarity: Color band denotes positive end • Mounting position:Any • Weight: 0.012 ounce, 0.3 gram • Packing information B - 1K per Bulk box T/R - 5K per 13" paper Reel T/B - 2.5K per horiz. tape & Ammo box
.205(5.2) .160(4.1)
.107(2.7)
1.0(25.4)MIN.
.080(2.0)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Parameter Power Dissipation at Tamb = 25 Junction Temperature Storage Temperature Range
O
Symbol
Value 1* -55 to + 150 -55 to + 150
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.
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PAGE . 1
1N4736A~1N4757A
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 1N4736A 1N4737A 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A 1N4743A 1N4744A 1N4745A 1N4746A 1N4747A 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A 1N4753A 1N4754A 1N4755A 1N4756A 1N4757A 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 6.46 7.13 7.79 8.65 9.5 10.45 11.4 12.35 14.25 15.2 17.1 19 20.9 22.8 25.65 28.5 31.35 34.2 37.05 40.85 44.65 48.45 7.14 7.88 8.61 9.56 10.5 11.55 12.6 13.65 15.75 16.8 18.9 21 23.1 25.2 28.35 31.5 34.65 37.8 40.95 45.15 49.35 53.55 3.5 4 4.5 5 7 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 V Z @ I ZT Min . V Ma x . V Ω
M a x i m u m Ze n e r I m p e d a n c e Z ZT @ I ZT mA Ω Z ZK @ I ZK mA
M a x i m u m Leakage Current I R @ VR uA V
Marking C ode D O-4 1
37 34 31 28 25 23 21 19 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7 6.5 6 5.5 5
700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500
1 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
5 5 5 0.5 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
4 5 6 7 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8
1N4736A 1N4737A 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A 1N4743A 1N4744A 1N4745A 1N4746A 1N4747A 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A 1N4753A 1N4754A 1N4755A 1N4756A 1N4757A
STAD-JUN.15.2009 2
PAGE . 2
1N4736A~1N4757A
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
0.75
0.5
0.25
0 0 20 40 60 80 100 120 140 160 180
O
200
T A , AMBIENT TEMPERATURE ( C)
FIGURE.1 POWER TEMPERATURE DERATING CURVE
a.RAMGE FOR UNITS TO 12 VOLTS
b.RAMGE FOR UNITS 12 TO 51 VOLTS
FIGURE.2 TEMPERATURE COEFICIENTS O O (-55 C TO +150 C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.)
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PAGE . 3
1N4736A~1N4757A
FIGURE.3TYPICAL THERMAL RESISTANCE versus LEAD LENGTH
FIGURE.4 EFFECT OF ZENER CURRENT
FIGURE.5 MZXIMUM SURGE POWER
FIGURE.6 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE
FIGURE.7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
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PAGE . 4
1N4736A~1N4757A
FIGURE.9 TYPICAL CAPACITANCE versus Vz
FIGURE.8 TYPICAL LEAKAGE CURRENT
STAD-JUN.15.2009 2
m
FIGURE.10 TYPICAL FORWARD CHARACTERISTICS
PAGE . 5
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