
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
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WEBSITE: http://www.cdi-diodes.com
FAX (781) 665-7379
E-mail: mail@cdi-diodes.com
JEDEC
TYPE
NUMBER
ZENER
VOLTAGE
ZENER
TEST
CURRENT
I ZT
MAXIMUM
ZENER
IMPEDANCE
(Note 1)
VOLTAGE
TEMPERATURE
STABILITY
V ZT
-55° to +100°
EFFECTIVE
TEMPERATURE
COEFFICIENT
vz@ I ZT
ZZT
(Note 2)
VOLTS
mA
OHMS
mV
% / °C
1N821
1N821A
1N822
5.9—6.5
5.9—6.5
5.9—6.5
7.5
7.5
7.5
15
10
15
96
96
96
0.01
0.01
0.01
1N823
1N823A
1N824
5.9—6.5
5.9—6.5
5.9—6.5
7.5
7.5
7.5
15
10
15
48
48
48
0.005
0.005
0.005
1N825
1N825A
1N826
5.9—6.5
5.9—6.5
6.2—6.9
7.5
7.5
7.5
15
10
15
19
19
20
0.002
0.002
0.002
1N827
1N827A
1N828
5.9—6.5
5.9—6.5
6.2—6.9
7.5
7.5
7.5
15
10
15
9
9
0.001
0.001
0.001
10
1N829
1N829A
5.9—6.5
5.9—6.5
7.5
7.5
15
10
5
5
0.0005
0.0005
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
= 2
μ
A @ 25°C & V
R
= 3 Vdc
ELECTRICAL CHARACTERISTICS
@ 25°C, unless otherwise specified.
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.
Double Anode: Electrical Specifications Apply Under Both Bias Polarities.
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.
1N821-1,1N823-1,1N825-1,1N827-1 AND 1N829-1 AVAILABLE IN
JAN
,
JANTX, JANTXV
AND JANS
PER MIL-PRF-19500/159
TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
METALLURGICALLY BONDED
DOUBLE PLUG CONSTRUCTION
1N821 thru 1N829A
and
1N821-1 thru 1N829-1