• 1N3821A-1 THRU 1N3828A-1 AVAILABLE IN JAN, JANTX AND JANTXV
PER MIL-PRF-19500/115
1N3821A thru 1N3828A
and
1N3821A-1 thru 1N3828A-1
• 1 WATT ZENER DIODE
• DOUBLE PLUG CONSTRUCTION
• METALLURGICALLY BONDED
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 1 watt @T = 95°C
L
Power Derating: 12.5 mW / °C above T = 95°C
L
Forward Voltage @ 200mA = 1.2 volts maximum
ELECTRICAL CHARACTERISTICS @ 25°C
CDI
TYPE
NOMINAL
ZENER
ZENER
TEST
MAX. DC
ZENER
MAXIMUM ZENER IMPEDANCE
MAX. REVERSE
NUMBER
VOLTAGE
CURRENT
CURRENT
LEAKAGE CURRENT
V
@ 1
ZT
1
Z
@ 1
Z
@ 1
1
l
@ V
Z
ZT
ZT
ZT
ZK
(NOTE 2)
ZK=1mA
ZM
R R
(NOTE 1)
(NOTE 3)
VOLTS
mA
OHMS
OHMS
mA
µ A
VOLTS
1N3821
1N3821A
1N3822
3.3
3.3
3.6
3.6
76
76
69
69
10
10
10
10
400
400
400
400
276
276
252
252
100
100
75
1
1
1
1
FIGURE 1
1N3822A
75
DESIGN DATA
1N3823
1N3823A
1N3824
3.9
3.9
4.3
4.3
64
64
58
58
9
9
9
9
400
400
400
400
238
238
213
213
25
25
5
1
1
1
1
CASE: Hermetically sealed glass
1N3824A
5
case, DO41.
1N3825
1N3825A
1N3826
4.7
4.7
5.1
5.1
53
53
49
49
8
8
7
7
500
500
550
550
194
194
178
178
5
5
3
3
1
1
1
1
LEAD MATERIAL: Copper clad steel
LEAD FINISH: Tin / Lead
1N3826A
1N3827
1N3827A
1N3828
5.6
5.6
6.2
6.2
45
45
41
41
5
5
2
2
600
600
700
700
162
162
146
146
3
3
3
3
2
2
3
3
THERMAL RESISTANCE: (R
80 ˚C/W maximum at L = .375 inch
):
OJEC
1N3828A
THERMAL IMPEDANCE: (Z
): 15
OJX
˚C/W maximum
POLARITY: Diode to be operated with
the banded (cathode) end positive.
NOTE 1
No suffix = + 10% tolerance on nominal Zener voltage, suffix “A” signifies +5%, suffix “C”
signifies + 2%, suffix “D” signifies + 1%.
NOTE 2
NOTE 3
Zener impedance is derived by superimposing on 1 A 60Hz rms a.c. current equal to
ZT
MOUNTING POSITION: Any.
10% of 1
ZT.
Zener voltage is measured with the device junction in thermal equilibrium at an ambient
temperature of 25°C + 3°C.
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
WEBSITE: http://www.cdi-diodes.com
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