
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
WEBSITE: http://www.cdi-diodes.com
FAX (781) 665-7379
E-mail: mail@cdi-diodes.com
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
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.
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
ZENER
TEST
CURRENT
I ZT
MAXIMUM
DYNAMIC
IMPEDANCE
ZZT
VOLTAGE
TEMPERATURE
STABILITY
V ZT
TEMPERATURE
RANGE
EFFECTIVE
TEMPERATURE
COEFFICIENT
vz@ I ZT
(Note 3)
(Note 1)
(Note 2)
VOLTS
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
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
mV
64
132
32
66
13
26
°C
% / °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
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
6.4
13
3.2
6.6
64
132
32
66
13
26
6.4
13
3.2
6.6
NOTE 1
Zener impedance is derived by superimposing on lZTA 60Hz rms
a.c. current equal to 10% of lZT.
NOTE 2
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.
NOTE 3
Zener voltage range equals 8.5 volts + 5%.
1N4775
thru
1N4784A
FIGURE 1