CE 1N4728 THRU 1N4764
CHENYI ELECTRONICS 1W SILICON PLANAR ZENER DIODES
FEATURES
. Silicon planar power zener diodes
For use in stabilizing and clipping circuits with high power rating.
. Standaards Zener voltage toerance is 10%
Add suffix"A" for 5% tolerance Other tolerance available upon
request
MECHANICAL DATA
. Case: DO-41 glass case
.weight: Approx. 0.35 gram
ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES)(TA=25 )
Symbols Value Units
Zener current see table "Characteristics"
Power dissipation at TA=25 Ptot mW
Junction temperature TJ
Storage temperature range TSTG
1)Valid provided that a distance of 8mm from case are kept at ambient temperature
ELECTRCAL CHARACTERISTICS(TA=25 )
Symbols Min Typ Max Units
Thermal resistance junction to ambient RthA 170 1) /W
Forward voltage at IF=200mA VF1.2 V
1) Valid provided that a distance at 8mm from case are kept at ambient temperature
1 1)
175
-65 to +175
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD Page 1 of 3
CE 1N4728 THRU 1N4764
CHENYI ELECTRONICS 1W SILICON PLANAR ZENER DIODES
1N4728…1N4764 SILICON PLANAR ZENER DIODES
Nominal Test Surge Maximum
Zener Current current regulator
Type Voltage 3) Current 2)
at at at at TA=0.25
IZT IZT ZZK IZK at VRIR IZM
VZ VIZT mA ZZT mA IR A V mA mA
1N4728 3.3 76 10 1.0 1380 276
1N4729 3.6 69 10 1.0 1260 252
1N4730 3.9 64 9 50 1.0 1190 234
1N4731 4.3 58 9 1.0 1070 217
1N4732 4.7 53 8 500 1.0 970 193
1N4733 5.1 49 7 550 1.0 890 178
1N4734 5.6 45 5 600 2.0 810 162
1N4735 6.2 41 2 3.0 730 146
1N4736 6.8 37 3.5 4.0 660 133
1N4737 7.5 34 4.0 5.0 605 121
1N4738 8.2 31 4.5 6.0 550 110
1N4739 9.1 28 5.0 7.0 500 100
1N4740 10 25 7 7.6 454 91
1N4741 11 23 8 8.4 414 83
1N4742 12 21 9 9.1 380 76
1N4743 13 19 10 9.9 344 69
1N4744 15 17 14 11.4 304 61
1N4745 16 15.5 16 12.2 285 57
1N4746 18 14 20 13.7 250 50
1N4747 20 12.5 22 15.2 225 45
1N4748 22 11.5 23 16.7 205 41
1N4749 24 10.5 25 18.2 190 38
1N4750 27 9.5 35 20.6 170 34
1N4751 30 8.5 40 22.8 150 30
1N4752 33 7.5 45 25.1 135 27
1N4753 36 7.0 50 27.4 125 25
1N4754 39 6.5 60 29.7 115 23
1N4755 43 6.0 70 32.7 110 22
1N4756 47 5.5 80 35.8 95 19
1N4757 51 5.0 95 38.8 90 18
1N4758 56 4.5 110 42.6 80 16
1N4759 62 4.0 125 47.1 70 14
1N4760 68 3.7 150 51.7 65 13
1N4761 75 3.3 175 56.0 60 12
1N4762 82 3.0 200 62.2 55 11
1N4763 91 2.8 250 69.2 50 10
1N4764 100 2.5 350 76.0 45 9
Notes:1) The Zener impedance is derived from the 1KHz AC voltage which results when an AC current having an RMS calue 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.
2)Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
3)Measured under thermal equilibriun and DC test conditions.
100
10
5
Maximum Zener Impedance 1) Maximum
reverse leakage current
1500
2000
3000
1.0
5.0
0.25
400
700
750
1000
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD Page 2 of 3
CE 1N4728 THRU 1N4764
CHENYI ELECTRONICS 1W SILICON PLANAR ZENER DIODES
RATINGS AND CHARACTERISTIC CURVES 1N4728 THRI 1N4764
Admissible power dissipation versus ambient temperature
(Valid provided that leads at a distance of 10mm from case
are kept at ambient temperature)
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD Page 3 of 3
