• 1N821 THRU 1N829 AVAILABLE IN JANHC AND JANKC
PER MIL-PRF-19500/159
CD821
thru
• MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS
• ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE
• ELECTRICALLY EQUIVALENT TO 1N821 THRU 1N829
CD829A
• 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
l
= 2 µA @ 25°C & V = 3 Vdc
R
R
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
Backside is not cathode
and must be electrically isolated
-55° TO +100°
VOLTAGE
TEMPERATURE TEMPERATURE
CDI
TYPE
ZENER
VOLTAGE
ZENER
TEST
MAXIMUM
ZENER
EFFECTIVE
NUMBER
CURRENT
IMPEDANCE
STABILITY
COEFFICIENT
T = Metallization Test Pad
V
@ I
I
Z
∆V
ZT
ZT
ZT
ZT
ZT
(Note 1)
OHMS
(Note 2)
mV
DESIGN DATA
VOLTS
mA
% / °C
CD821
CD821A
CD823
CD823A
CD825
CD825A
CD826
CD827
CD827A
CD828
CD829
CD829A
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
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
15
10
15
10
15
10
15
15
10
15
15
10
96
96
48
48
19
19
20
9
0.01
0.01
METALLIZATION:
0.005
0.005
0.002
0.002
0.002
0.001
0.001
0.001
0.0005
0.0005
Top:
C
A
(Cathode) ...................Al
(Anode) ...................... Al
Back: .......................................Au
AL THICKNESS.........25,000 Å Min
GOLD THICKNESS......4,000 Å Min
CHIP THICKNESS. ..............10 Mils
9
10
5
5
CIRCUIT LAYOUT DATA:
Backside must be electrically
isolated.
Backside is not cathode.
For Zener operation cathode must
be operated positive with respect
to anode.
NOTE 1
NOTE 2
Zener impedance is derived by superimposing on l A 60Hz rms a.c.
ZT
current equal to 10% of l
ZT.
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.
TOLERANCES: ALL
Dimensions + 2 mils
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
WEBSITE: http://www.cdi-diodes.com
FAX (781) 665-7379
E-mail: mail@cdi-diodes.com