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• 1N3154UR-1 THRU 1N3157UR-1 AVAILABLE IN JAN, JANTX, JANTXV
AND JANS PER MIL-PRF-19500/158
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• LEADLESS PACKAGE FOR SURFACE MOUNT
• 8.4 VOLT NOMINAL ZENER VOLTAGE
• METALLURGICALLY BONDED, DOUBLE PLUG CONSTRUCTION
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
lR = 10 µA @ 25°C & VR = 5.5Vdc
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
CDI
TYPE
NUMBER
ZENER
VOLTAGE
VZ @ IZT
CDLL3154
CDLL3154A
CDLL3155
CDLL3155A
CDLL3156
CDLL3156A
CDLL3157
CDLL3157A
VOLTS
8.00 - 8.80
8.00 - 8.80
8.00 - 8.80
8.00 - 8.80
8.00 - 8.80
8.00 - 8.80
8.00 - 8.80
8.00 - 8.80
ZENER
TEST
CURRENT
I ZT
mA
10
10
10
10
10
10
10
10
MAXIMUM VOLTAGE TEMPERATURE
ZENER TEMPERATURE
RANGE
IMPEDANCE
ZZT
STABILITY
V ZT
EFFECTIVE
TEMPERATURE
COEFFICIENT
MAXIMUM
(Note 1)
(Note 2)
OHMS
mV
°C % / °C
15
130 -55 to +100
.01
15
172 -55 to +150
.01
15 65 -55 to +100 .005
15 86 -55 to +150 .005
15 26 -55 to +100 .002
15 34 -55 to +150 .002
15 13 -55 to +100 .001
15 17 -55 to +150 .001
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.
1N3154UR-1
thru
1N3157UR-1
and
CDLL3154
thru
CDLL3157A
MILLIMETERS INCHES
DIM MIN MAX MIN MAX
D 1.60 1.70 0.063 0.067
F 0.41 0.55 0.016 0.022
G 3.30 3.70 .130 .146
G1 2.54 REF. .100 REF.
S 0.03 MIN. .001 MIN.
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.
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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CDLL3154
thru
CDLL3157A
100
50
600
500
400
300
200
100
0
0
25 50 75 100 125 150
TA, Ambient Temperature (°C)
FIGURE 2
POWER DERATING CURVE
175
10
5
1
8 9 10 11 12 13
OPERATING CURRENT lZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
6 8 10 12 14
OPERATING CURRENT lZT (mA)
FIGURE 4
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT