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1N4744Datasheet PDF
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DS18007 Rev. 20 - 4
1 of 3
www.diodes.com
1N4728A - 1N4761A
© Diodes Incorporated
OBSOL ETE – PA RT D I SCO N T INU ED
PART OBSOLETE – NO ALTERNATE
PART
1N4728A - 1N4761A
1.0W ZENER DIODE
Features
1.0 Watt Power Dissipation
3.3V - 75V Nominal Zener Voltage
Standard V
Z
Tolerance is 5%
Lead Free Finish, RoHS Compliant (Note 2)
Mechanical Data
Case: DO-41
Case Material: Glass. UL Flammability
Classification Rating 94V-0
Terminals: Finish Sn96.5Ag3.5. Solderable
per MIL-STD-202, Method 208
Polarity: Cathode Band
Marking: Type Number
Weight: 0.35 grams (approximate)
DO-41 Glass
Dim
Min
Max
A
26.0
B
4.10
C
0.86
D
2.60
All Dimensions in mm
Maximum Ratings @T
A
= 25°C unless otherwise specified
Characteristic
Symbol
Value
Unit
Zener Current (see Table page 2)
I
Z
Pd / V
Z
mA
Power Dissipation
Derate Above 50°C (Note 1)
P
d
1.0
6.67
W
mW/°C
Thermal Resistance - Junction to Ambient Air
R
JA
175
°C/W
Forward Voltage @ I
F
= 200 mA
V
F
1.2
V
Operating and Storage Temperature Range
T
j
, T
STG
-65 to + 175
°C
Notes: 1. Valid provided that leads are kept at TL @ 50°C with lead length = 9.5mm (3/8”) from case.
2. EC Directive 2002/95/EC (RHS) revision 13.2.2003. Glass and high temperature solder exemptions applied where applicable,
see EU Directive Annex Notes 5 and 7.
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