1N4728A Datasheet, PDF (1/3 Pages) Motorola, Inc – One Watt Hermetically Sealed Glass Silicon Zener Diodes

Z ibo Seno Electronic Engineering Co., Ltd.
1N4728A - 1N4761A
Features
· 1.0 Watt Power Dissipation
· 3.3V - 75V Nominal Zener Voltage
· Standard VZ Tolerance is 5%
· Lead Free Finish, RoHS Compliant (Note 2)
1.0W ZENER DIODE
A
B
A
Mechanical Data
· Case: DO-41
· Case Material: Glass. UL Flammability Classification Rating
94V-0
· Moisture Sensitivity: Level 1 per J-STD-020C
· Terminals: Finish ¾ Sn96.5Ag3.5. Solderable per
MIL-STD-202, Method 208
· Polarity: Cathode Band
· Marking: Type Number
· Weight: 0.35 grams (approximate)
C
D
DO-41GLASS
Dim
Min
Max
A
26.0
—
B
—
4.10
C
—
0.86
D
—
2.60
All Dimensions in mm
Maximum Ratings @ TA = 25°C unless otherwise specified
Characteristic
Zener Current (see Table page 2)
Power Dissipation
Derate Above 50°C
Thermal Resistance - Junction to Ambient Air
Forward Voltage @ IF = 200 mA
Operating and Storage Temperature Range
(Note 1)
Symbol
IZ
Pd
RqJA
VF
Tj, TSTG
Value
Pd / VZ
1.0
6.67
175
1.2
-65 to + 175
Unit
mA
W
mW/°C
°C/W
V
°C
Note:
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 (RoHS) revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied where applicable,
see EU Directive Annex Notes 5 and 7.
1N4728A - 1N4761A
1 of 3
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