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
CDI ZENER ZENER MAXIMUM VOLTAGE EFFECTIVE
TYPE
VOLTAGE
TEST
NUMBER
CURRENT
VZ@ I ZT
ZENER
IMPEDANCE
(Note 1)
TEMPERATURE
STABILITY
V ZT
-55° to +100°
TEMPERATURE
COEFFICIENT
I ZT
ZZT
(Note 2)
VOLTS
mA
OHMS
mV
% / °C
CDLL821
CDLL821A
CDLL822
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
7.5
7.5
7.5
15
10
15
96
96
96
0.01
0.01
0.01
CDLL823
CDLL823A
CDLL824
5.9 - 6.5
5.9 - 6.5
5.9 - 6.5
7.5
7.5
7.5
15
10
15
48
48
48
0.005
0.005
0.005
CDLL825
CDLL825A
CDLL826
5.9 - 6.5
5.9 - 6.5
6.2 - 6.9
7.5
7.5
7.5
15
10
15
19
19
20
0.002
0.002
0.002
CDLL827
CDLL827A
CDLL828
5.9 - 6.5
5.9 - 6.5
6.2 - 6.9
7.5
7.5
7.5
15
10
15
9
9
0.001
0.001
0.001
10
CDLL829
CDLL829A
5.9 - 6.5
5.9 - 6.5
7.5
7.5
15
10
5
5
0.0005
0.0005
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500mW @ +50°C
Power Derating: 4 mW / °C above +50°C
REVERSE LEAKAGE CURRENT
l
R
= 2
μ
A @ 25°C & V
R
= 3 Vdc
ELECTRICAL CHARACTERISTICS
@ 25°C, unless otherwise specified.
Double Anode: Electrical Specifications Apply Under Both Bias Polarities.
NOTE 1
Zener impedance is derived by superimposing on lZTA 60Hz rms a.c. current
equal to 10% of lZT.
NOTE 2
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.
FIGURE 1
DESIGN DATA
CASE:
DO-213AA
,
Hermetically sealed
glass case. (MELF, SOD-80, LL34)
LEAD FINISH:
Tin / Lead
POLARITY:
Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION:
Any.
MOUNTING SURFACE SELECTION:
The Axial Coefficient of Expansion
(COE) Of this Device is Approximately
+6PPM/°C. The COE of the Mounting
Surface System Should Be Selected To
Provide A Suitable Match With This
Device.
1N821UR-1, 1N823UR-1, 1N825UR-1, 1N827UR-1 AND 1N829UR-1 AVAILABLE
IN
JAN, JANTX, JANTXV AND JANS
PER MIL-PRF-19500/159
TEMPERATURE COMPENSATED ZENER DIODES
LEADLESS PACKAGE FOR SURFACE MOUNT
6.2 AND 6.55 VOLT NOMINAL ZENER VOLTAGES
METALLURGICALLY BONDED, DOUBLE PLUG CONSTRUCTION
1N821UR-1 thru 1N829UR-1
and
CDLL821 thru CDLL829A
MILLIMETERS INCHES
MIN
MAX
1.60
1.70
0.41
0.55
3.30
3.70
2.54 REF.
0.03 MIN.
DIM
D
F
G
G1
S
MIN
0.063 0.067
0.016 0.022
.130
.100 REF.
.001 MIN.
MAX
.146