BL
FEATURES
power rating.
GALAXY ELECTRICAL
ZENER DIODES
1N4728 --- 1N4764
POWER DISSIPATION: 1.0 W
Silicon planar power zener diodes
For use in stabilizing and clipping circuits with high
DO-41(GLASS)
Standard zener voltage tolerance is ±10%. Add
suffix "A" for ±5% tolerance. other zener voltage
and tolerances are available upon request.
MECHANICAL DATA
Case:DO-41, glass case
Terminals: solderable per MIL-STD-202, method 208
Polarity: cathode band
Marking: type number
Approx. weight: 0.35 grams.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
SYMBOL
Zener current (see Table "Characteristics")
VALUE
UNIT
Pow er dissipation @ T
amb
50
P
Diss
I
Z
T
J
T
s
R
ThJA
1.0
1)
P
V
/V
Z
200
-55---+200
100
W
Z-current
mA
Junction temperature
Storage temperature range
Junction ambient I=9.5mm(3/8 ), T
L
=constant
K/W
SYMBOL
Forw ard voltage at I
F
=200mA
MIN
TYP
MAX
1.2
UNIT
V
V
F
www.galaxycn.com
Document Number 0284004
BL
GALAXY ELECTRICAL
1.
1N4728 THRU 1N4764
ZENER DIODES
FEATURES
DO-41 Glass
♦
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
tolerances are available upon request.
♦
These diodes are also available in the MELF case with type
designation ZM4728 thru ZM4764
max. .161 (4.1)
min. 1.102 (28.0)
min. 1.102 (28.0)
max.
∅
0.102 (2.6)
Cathode
Mark
max.
∅
0.034 (0.86)
MECHANICAL DATA
Case:
DO-41 Glass Case
Weight:
approx. 0.35 g
Dimensions in inches and (millimeters)
MAXIMUM RATINGS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOL
VALUE
UNIT
Zener Current (see Table “Characteristics”)
Power Dissipation at T
amb
= 25°C
Junction Temperature
Storage Temperature Range
P
tot
T
j
T
S
1.0
(1)
175
– 65 to +175
Watts
°C
°C
Characteristics at Tamb = 25 °C
SYMBOL
MIN.
TYP.
MAX.
UNIT
Thermal Resistance
Junction to Ambient Air
Forward Voltage
at I
F
= 200 mA
R
thJA
–
–
170
(1)
°C/W
V
F
–
–
1.2
Volts
NOTES:
(1) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
12/3/98
stm32/stm8
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