1N821 1N829A.aspx?ext=

1N821-1N829A
TEMPERATURE COMPENSATED ZENER
REFERENCE DIODE
High-reliability discrete products
and engineering services since 1977
FEATURES


Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.
Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix.
MAXIMUM RATINGS
Operating and storage temperature range
-65°C to +175°C
DC power dissipation
500mW @ TL = 25°C and maximum current lZM OF 70mA.
For optimum voltage-temperature stability, lZ = 7.5mA
(less than 50 mW in dissipated power)
Solder temperatures
260°C for 10 s (max)
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
Part number
VZ @ lZT
Zener Test
Current
lZT
Zener voltage
(Note 1 and 4)
Maximum zener
impedance
(Note 2)
ZZT @ lZT
Maximum
reverse
current
lR @ 3V
Voltage temperature
stability
(ΔVZT MAX)
-55°C to = 100°C
(Note 3 and 4)
Effective
temperature
coefficient
αVZ
VOLTS
mA
OHMS
μA
mV
%/°C
1N821
5.9-6.5
7.5
15
2.0
96
0.01
1N821A
5.9-6.5
7.5
10
2.0
96
0.01
1N822†
5.9-6.5
7.5
15
2.0
96
0.01
1N823
5.9-6.5
7.5
15
2.0
48
0.005
1N823A
5.9-6.5
7.5
10
2.0
48
0.005
1N824†
5.9-6.5
7.5
15
2.0
48
0.005
1N825
5.9-6.5
7.5
15
2.0
19
0.002
1N825A
5.9-6.5
7.5
10
2.0
19
0.002
1N826
6.2-6.9
7.5
15
2.0
20
0.002
1N827
5.9-6.5
7.5
15
2.0
9
0.001
1N827A
5.9-6.5
7.5
10
2.0
9
0.001
1N828
6.2-6.9
7.5
15
2.0
10
0.001
1N829
5.9-6.5
7.5
15
2.0
5
0.0005
1N829A
5.9-6.5
7.5
10
2.0
5
0.0005
† Double Anode; electrical specifications apply under both bias polarities.
NOTES:
1.
Add a “-1” suffix for internal metallurgical bond.
2.
Zener impedance measured by superimposing 0.75 mA ac rms on 7.5mA dc @ 25°C.
3.
The maximum allowable change observed over the entire temperature range, i.e. the diode voltage will not exceed the specified mV change at
discrete temperature between the established limits.
4.
Voltage measurements to be performed 15 seconds after application of dc current.
Rev. 20160114
High-reliability discrete products
and engineering services since 1977
1N821-1N829A
TEMPERATURE COMPENSATED ZENER
REFERENCE DIODE
MECHANICAL CHARACTERISTICS
Case
DO-7
Marking
Body painted, alpha numeric
Polarity
Cathode Band
Rev. 20160114