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Compensated Deuices Incorporated

CD821 Datasheet Preview

CD821 Datasheet

MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS

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• 1N821 THRU 1N829 AVAILABLE IN JANHC AND JANKC
PER MIL-PRF-19500/159
• MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS
• ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE
• ELECTRICALLY EQUIVALENT TO 1N821 THRU 1N829
• COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES,
WITH THE EXCEPTION OF SOLDER REFLOW
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
REVERSE LEAKAGE CURRENT
lR = 2 µA @ 25°C & VR = 3 Vdc
CD821
thru
CD829A
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
CDI
TYPE
NUMBER
CD821
CD821A
CD823
CD823A
CD825
CD825A
CD826
CD827
CD827A
CD828
CD829
CD829A
ZENER
VOLTAGE
VZT@ I ZT
VOLTS
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
6.2 - 6.9
5.9 - 6.5
5.9 - 6.5
ZENER
TEST
CURRENT
I ZT
mA
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
MAXIMUM
ZENER
IMPEDANCE
ZZT
(Note 1)
OHMS
15
10
15
10
15
10
15
15
10
15
15
10
-55° TO +100°
VOLTAGE
TEMPERATURE
STABILITY
VZT
EFFECTIVE
TEMPERATURE
COEFFICIENT
(Note 2)
mV % / °C
96 0.01
96 0.01
48 0.005
48 0.005
19 0.002
19 0.002
20 0.002
9 0.001
9 0.001
10 0.001
5 0.0005
5 0.0005
NOTE 1
NOTE 2
Zener impedance is derived by superimposing on lZT A 60Hz rms a.c.
current equal to 10% of lZT.
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.
Backside is not cathode
and must be electrically isolated
T = Metallization Test Pad
DESIGN DATA
METALLIZATION:
Top: C (Cathode) ...................Al
A (Anode) ...................... Al
Back: .......................................Au
AL THICKNESS.........25,000 Å Min
GOLD THICKNESS......4,000 Å Min
CHIP THICKNESS. ..............10 Mils
CIRCUIT LAYOUT DATA:
Backside must be electrically
isolated.
Backside is not cathode.
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




Compensated Deuices Incorporated

CD821 Datasheet Preview

CD821 Datasheet

MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS

No Preview Available !

CD821 thru CD829A
500
100
50
10
5
1
5 6 7 8 9 10
OPERATING CURRENT lZT (mA)
FIGURE 3
ZENER IMPEDANCE
VS.
OPERATING CURRENT
+.0010
+.0005
0
-.0005
-.0010
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


Part Number CD821
Description MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS
Maker Compensated Deuices Incorporated
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CD821 Datasheet PDF






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