• 8.5 VOLT NOMINAL ZENER VOLTAGE + 5%
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• LOW CURRENT RANGE: 0.5 AND 1.0 mA
• METALLURGICALLY BONDED
• DOUBLE PLUG CONSTRUCTION
1N4775
thru
1N4784A
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500mW @ +50°C
Power Derating: 4 mW / °C above +50°C
REVERSE LEAKAGE CURRENT
l
R
= 10
µ
A @ 25°C & V
R
= 6 Vdc
ELECTRICAL CHARACTERISTICS
@ 25°C, unless otherwise specified.
JEDEC
TYPE
NUMBER
ZENER
VOLTAGE
vz @ I
ZT
(Note 3)
VOLTS
ZENER
TEST
CURRENT
I
ZT
MAXIMUM
DYNAMIC
IMPEDANCE
ZZT
(Note 1)
VOLTAGE
TEMPERATURE
TEMPERATURE
RANGE
STABILITY
∆V
ZT
(Note 2)
mV
64
132
32
66
13
26
6.4
13
3.2
6.6
64
132
32
66
13
26
6.4
13
3.2
6.6
°C
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
0 to + 75
-55 to +100
EFFECTIVE
TEMPERATURE
COEFFICIENT
mA
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
OHMS
200
200
200
200
200
200
200
200
200
200
100
100
100
100
100
100
100
100
100
100
% / °C
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.0005
0.0005
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.0005
0.0005
1N4775
1N4775A
1N4776
1N4776A
1N4777
1N4777A
1N4778
1N4778A
1N4779
1N4779A
1N4780
1N4780A
1N4781
1N4781A
1N4782
1N4782A
1N4783
1N4783A
1N4784
1N4784A
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
FIGURE 1
DESIGN DATA
CASE:
Hermetically sealed glass
case. DO – 35 outline.
LEAD MATERIAL:
Copper clad steel.
LEAD FINISH:
Tin / Lead
POLARITY:
Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION:
ANY.
NOTE 1
Zener impedance is derived by superimposing on lZT A 60Hz rms
a.c. current equal to 10% of lZT.
The maximum allowable change observed over the entire temperature range i.e.,
the diode voltage will not exceed the specified mV at any discrete temperature
between the established limits, per JEDEC standard No.5.
Zener voltage range equals 8.5 volts + 5%.
NOTE 2
NOTE 3
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: mail@cdi-diodes.com
1N4775
thru
1N4784A
600
Pd, Rated Power
Dissipation (mW)
500
400
300
200
100
0
0
25
50
75
100
125
150
175
TL, Lead temperature (C°) 3/8” from body
FIGURE 2
POWER DERATING CURVE
+.0015
CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
+.0010
+.0005
0
-.0005
-.0010
-.0015
0.5
1.0
1.5
OPERATING CURRENT lZT (mA)
2.0
FIGURE 4
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT
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