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
• 9.1 VOLT NOMINAL ZENER VOLTAGE + 5%
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• LOW CURRENT RANGE: 0.5 AND 1.0 mA
• METALLURGICALLY BONDED
• DOUBLE PLUG CONSTRUCTION
1N4765
thru
1N4774A
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
lR= 10
µ
A @ 25°C & VR= 6 Vdc
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
MAXIMUM
JEDEC ZENER ZENER MAXIMUM VOLTAGE TEMPERATURE EFFECTIVE
TYPE VOLTAGE TEST DYNAMIC TEMPERATURE RANGE TEMPERATURE
NUMBER CURRENT IMPEDANCE STABILITY COEFFICIENT
vz@ I ZT I ZT ZZT ∆V ZT
(Note 3) (Note 1) (Note 2)
VOLTS mA OHMS mV °C % / °C
1N4765 9.1 0.5 350 68 0 to + 75 0.01
1N4765A 9.1 0.5 350 141 -55 to +100 0.01
1N4766 9.1 0.5 350 34 0 to + 75 0.005
1N4766A 9.1 0.5 350 70 -55 to +100 0.005
1N4767 9.1 0.5 350 14 0 to + 75 0.002
1N4767A 9.1 0.5 350 28 -55 to +100 0.002
1N4768 9.1 0.5 350 6.8 0 to + 75 0.001
1N4768A 9.1 0.5 350 14 -55 to +100 0.001
1N4769 9.1 0.5 350 3.4 0 to + 75 0.0005
1N4769A 9.1 0.5 350 7 -55 to +100 0.0005
1N4770 9.1 1.0 200 68 0 to + 75 0.01
1N4770A 9.1 1.0 200 141 -55 to +100 0.01
1N4771 9.1 1.0 200 34 0 to + 75 0.005
1N4771A 9.1 1.0 200 70 -55 to +100 0.005
1N4772 9.1 1.0 200 14 0 to + 75 0.002
1N4772A 9.1 1.0 200 28 -55 to +100 0.002
1N4773 9.1 1.0 200 6.8 0 to + 75 0.001
1N4773A 9.1 1.0 200 14 -55 to +100 0.001
1N4774 9.1 1.0 200 3.4 0 to + 75 0.0005
1N4774A 9.1 1.0 200 7 -55 to +100 0.0005
NOTE 1 Zener impedance is derived by superimposing on lZT A 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 9.1 volts + 5%.
FIGURE 1
1N4765 thru 1N4774A
0 25 50 75 100 125 150 175
TL, Lead temperature (C°) 3/8” from body
FIGURE 2
POWER DERATING CURVE
600
500
400
300
200
100
0
Pd, Rated Power
Dissipation (mW)
123
OPERATING CURRENT lZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
1000
500
100
50
10
CHANGE IN TEMPERATURE COEFFICIENT (%/°C)
0.5 1.0 1.5 2.0
OPERATING CURRENT lZT (mA)
FIGURE 4
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
