1N4728 thru 1N4764
Vishay Semiconductors
formerly General Semiconductor
Document Number 88304 www.vishay.com
25-Jul-02 1
Zener Diodes VZRange 3.3 to 100V
Power Dissipation 1.0W
min. 1.102 (28.0)min. 1.102 (28.0)
max. .161 (4.1)
max. ∅
Cathode
0.034 (0.86)
Mark
max. ∅
0.102 (2.6)
Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Parameter Symbol Value Unit
Zener Current See Next Page
Power Dissipation at Tamb = 50°C PD1.0(1) W
Thermal Resistance Junction to Ambient Air RθJA 170(1) °C/W
Junction Temperature TJ200 °C
Storage Temperature Range TS–65 to +200 °C
Note: (1) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature.
DO-204AL
(DO-41 Glass)
Dimensions in inches
and (millimeters)
Features
• Silicon Planar Power Zener Diodes
• For use in stabilizing and clipping circuits with high
power rating.
• Standard Zener voltage tolerance is ±10%. Add suffix
“A” for ±5% tolerance. Other Zener voltages and toler-
ances are available upon request.
• These diodes are also available in the MELF case with
type designation ZM4728 thru ZM4764
• For bidirectional product, contact local Technical Sales
office.
Mechanical Data
Case: DO-41 Glass Case
Weight: approx. 0.0123 oz., 0.35 g
Packaging Codes/Options:
D9/5K per 13" reel (52mm tape), 10K/box
E1/5K per Ammo mag. (52mm tape), 10K/box
1N4728 thru 1N4764
Vishay Semiconductors
formerly General Semiconductor
www.vishay.com Document Number 88304
225-Jul-02
Electrical Characteristics (TA= 25°C unless otherwise noted). Maximum VF= 1.2V at IF= 200mA
Nominal Test Maximum Zener impedance(1) Maximum Surge Maximum
Zener current reverse leakage current current regulator
voltage(3) current(2)
at ZZT at at at
IZT at IZT ZZK IZK IRat VRTA= 25°C TA= 50°C
Type VZ(V) IZT (mA) (Ω)(Ω) (mA) (µA) (V) IR(mA) IZM (mA)
1N4728 3.3 76 10 400 1.0 100 1 1380 276
1N4729 3.6 69 10 400 1.0 100 1 1260 252
1N4730 3.9 64 9 400 1.0 50 1 1190 234
1N4731 4.3 58 9 400 1.0 10 1 1070 217
1N4732 4.7 53 8 500 1.0 10 1 970 193
1N4733 5.1 49 7 550 1.0 10 1 890 178
1N4734 5.6 45 5 600 1.0 10 2 810 162
1N4735 6.2 41 2 700 1.0 10 3 730 146
1N4736 6.8 37 3.5 700 1.0 10 4 660 133
1N4737 7.5 34 4.0 700 0.5 10 5 605 121
1N4738 8.2 31 4.5 700 0.5 10 6 550 110
1N4739 9.1 28 5.0 700 0.5 10 7 500 100
1N4740 10 25 7 700 0.25 10 7.6 454 91
1N4741 11 23 8 700 0.25 5 8.4 414 83
1N4742 12 21 9 700 0.25 5 9.1 380 76
1N4743 13 19 10 700 0.25 5 9.9 344 69
1N4744 15 17 14 700 0.25 5 11.4 304 61
1N4745 16 15.5 16 700 0.25 5 12.2 285 57
1N4746 18 14 20 750 0.25 5 13.7 250 50
1N4747 20 12.5 22 750 0.25 5 15.2 225 45
1N4748 22 11.5 23 750 0.25 5 16.7 205 41
1N4749 24 10.5 25 750 0.25 5 18.2 190 38
1N4750 27 9.5 35 750 0.25 5 20.6 170 34
1N4751 30 8.5 40 1000 0.25 5 22.8 150 30
1N4752 33 7.5 45 1000 0.25 5 25.1 135 27
1N4753 36 7.0 50 1000 0.25 5 27.4 125 25
1N4754 39 6.5 60 1000 0.25 5 29.7 115 23
1N4755 43 6.0 70 1500 0.25 5 32.7 110 22
1N4756 47 5.5 80 1500 0.25 5 35.8 95 19
1N4757 51 5.0 95 1500 0.25 5 38.8 90 18
1N4758 56 4.5 110 2000 0.25 5 42.6 80 16
1N4759 62 4.0 125 2000 0.25 5 47.1 70 14
1N4760 68 3.7 150 2000 0.25 5 51.7 65 13
1N4761 75 3.3 175 2000 0.25 5 56.0 60 12
1N4762 82 3.0 200 3000 0.25 5 62.2 55 11
1N4763 91 2.8 250 3000 0.25 5 69.2 50 10
1N4764 100 2.5 350 3000 0.25 5 76.0 45 9
Notes:
(1) The Zener impedance is derived from the 1KHZAC 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
(2) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
(3) Measured under thermal equilibrium and DC test conditions
1N4728 thru 1N4764
Vishay Semiconductors
formerly General Semiconductor
Document Number 88304 www.vishay.com
25-Jul-02 3
Ratings and
Characteristic Curves (TA= 25°C unless otherwise noted)
1N4728 ... 1N4764
P
D
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
Disclaimer
Legal Disclaimer Notice
Vishay
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
