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1N4728 Datasheet, PDF (1/3 Pages) Semtech Corporation – SILICON PLANAR POWER ZENER DIODES 
ZENER DIODES
FEATURES
For use in stabilizing and clipping circuits with high
power rating.Standard zener voltage tolerance is ±10%.
Add suffix "A" for ±5% tolerance.
MECHANICAL DATA
Cas e:DO-41, glass case
Terminals : solderable per MIL-STD-202, method 208
Polarity: cathode band
Marking: type number
Approx. weight: 0.35 grams
Glass-Encapsulate Diodes
1N4728-1N4764
25.4 Min
4.2 Max
25.4 Min
2.8 Max
0.7 Max
DO-41 Dimensions in millimeters
ABSOLUTE MAXIMUM RATINGS (TA=25 unless otherwise noted)
Parameter
Symbol
Power dissipation @ Tamb 50
PDiss
Z-current
IZ
Junction temperature
TJ
Storage temperature range
Ts
Junction ambient I=9.5mm(3/8 ), TL=constant
RThJA
1)Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
Value
1.01)
PV/VZ
200
-55---+200
100
ELECTRICAL CHARACTERISTICS (Tamb=25 unless otherwise specified)
Parameter
Symbol
Min
Typ
Max
Forward voltage at IF=200mA
VF
1.2
Unit
W
mA
K/W
Unit
V
MAKO Semiconductor Co., Limited 4008-378-873 http://www.makosemi.hk/
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