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15
JEDEC
ZENER
ZENER
MAXIMUM VOLTAGE EFFECTIVE
TYPE
VOLTAGE
TEST
ZENER
TEMPERATURE
TEMPERATURE
NUMBER
CURRENT
IMPEDANCE
STABILITY
COEFFICIENT
vz @ I ZT
I
ZT
(Note 1)
³V
ZT
Z
ZT
-55° to +100°
(Note 2)
VOLTS
mA
OHMS
mV
% / °C
1N821
5.9--6.5
7.5
15
96
0.01
1N821A
5.9--6.5
7.5
10
96
0.01
1N822
5.9--6.5
7.5
15
96
0.01
1N823
5.9--6.5
7.5
15
48
0.005
1N823A
5.9--6.5
7.5
10
48
0.005
1N824
5.9--6.5
7.5
15
48
0.005
1N825
5.9--6.5
7.5
15
19
0.002
1N825A
5.9--6.5
7.5
10
19
0.002
1N826
6.2--6.9
7.5
15
20
0.002
1N827
5.9--6.5
7.5
15
9
0.001
1N827A
5.9--6.5
7.5
10
9
0.001
1N828
6.2--6.9
7.5
15
10
0.001
1N829
5.9--6.5
7.5
15
5
0.0005
1N829A
5.9--6.5
7.5
10
5
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 speci½ed.
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 Speci½cations Apply Under Both Bias Polarities.
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 speci½ed 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
16
1N821
thru
1N829A
INCLUDING -1 VERSIONS
25
50
100
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)
5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5
OPERATING CURRENT lZT (mA)
FIGURE 4
TYPICAL CHANGE OF TEMPERATURE
COEFFICIENT WITH CHANGE IN
OPERATING CURRENT
+.0010
+.0005
0
-.0005
-.0010
CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
5
6
7
8
9
10
OPERATING CURRENT lZT (mA)
FIGURE 3
ZENER IMPEDANCE
VS.
OPERATING CURRENT
500
100
50
10
5
1
ZENER IMPEDANCE Z
ZT
(OHMS)
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