MAXIMUM RATINGS
Operating Temperature: -65C to +175C
Storage Temperature: -65C to +175C
Forward Voltage @ 200mA: 1.2 volts maximum
ELECTRICAL CHARACTERISTICS @ 25C
CDI
NOMINAL
ZENER
MAX. DC
TYPE
ZENER
TEST
MAXIMUM ZENER IMPEDANCE
ZENER
MAX. REVERSE
NUMBER
VOLTAGE
CURRENT
CURRENT
LEAKAGE CURRENT
VZ @ 1ZT
1ZT
ZZT @ 1ZT
ZZK @ IZK=1mA
1
ZM
l
R
@ V
R
(NOTE 1)
(NOTE 2)
(NOTE 3)
VOLTS
mA
OHMS
OHMS
mA
A
VOLTS
CD3821
3.3
76
10
400
276
100
1
CD3821A
3.3
76
10
400
276
100
1
CD3822
3.6
69
1040
0
252
75
1
CD3822A
3.6
69
1040
0
252
75
1
CD3823
3.9
64
9
400
238
25
1
CD3823A
3.9
64
9
400
238
25
1
CD3824
4.3
58
9
400
213
5
1
CD3824A
4.3
58
9
400
213
5
1
CD3825
4.7
53
8
500
194
5
1
CD3825A
4.7
53
8
500
194
5
1
CD3826
5.1
49
7
550178
3
1
CD3826A
5.1
49
7
550178
3
1
CD3827
5.6
45
5
600
162
3
2
CD3827A
5.6
45
5
600
162
3
2
CD3828
6.2
41
2
700
146
3
3
CD3828A
6.2
41
2
700
146
3
3
NOTE 1
Zener voltage range equals nominal voltage + 5% for "A" Suffix No Suffix denotes + 10%.
"C" suffix denotes + 2%, "D" suffix denotes + 1%.
NOTE 2
Zener voltage is read using a pulse measurement, 10 milliseconds maximum.
NOTE 3
Zener impedance is derived by superimposing on 1
ZT
A 60Hz rms a.c. current equal
to 10% of 1
ZT
.
1N3821A THRU 1N3828A AVAILABLE IN
JANHC
PER MIL-PRF-19500/115
1 WATT CAPABILITY WITH PROPER HEAT SINKING
ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE
COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES,
WITH THE EXCEPTION OF SOLDER REFLOW
CD3821
thru
CD3828A
Backside is Cathode
FIGURE 1
DESIGN DATA
METALLIZATION:
Top: (Anode)......................Al
Back: (Cathode).............. ...Au
AL THICKNESS....... ....25,000
Min
GOLD THICKNESS........4,000
Min
CHIP THICKNESS............. .....10 Mils
CIRCUIT LAYOUT DATA:
For Zener operation, cathode
must be operated positive with
respect to anode.
TOLERANCES: ALL
Dimensions + 2 mils
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
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