CDIDI CDLL3157A, CDLL3157, CDLL3156A, CDLL3156, CDLL3155A Datasheet
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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
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.
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 ZENER ZENER MAXIMUM VOLTAGE TEMPERATURE EFFECTIVE
TYPE VOLTAGE TEST ZENER TEMPERATURE RANGE TEMPERATURE
NUMBER CURRENT IMPEDANCE STABILITY COEFFICIENT
VZ@ I
ZT
I
ZT
Z
ZT
∆V
ZT
MAXIMUM
(Note 1) (Note 2)
VOLTS mA OHMS mV °C % / °C
CDLL3154 8.00 - 8.80 10 15 130 -55 to +100 .01
CDLL3154A 8.00 - 8.80 10 15 172 -55 to +150 .01
CDLL3155 8.00 - 8.80 10 15 65 -55 to +100 .005
CDLL3155A 8.00 - 8.80 10 15 86 -55 to +150 .005
CDLL3156 8.00 - 8.80 10 15 26 -55 to +100 .002
CDLL3156A 8.00 - 8.80 10 15 34 -55 to +150 .002
CDLL3157 8.00 - 8.80 10 15 13 -55 to +100 .001
CDLL3157A 8.00 - 8.80 10 15 17 -55 to +150 .001
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.
• 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
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.
CDLL3154
thru
CDLL3157A
0 25 50 75 100 125 150 175
TA, Ambient Temperature (°C)
FIGURE 2
POWER DERATING CURVE
600
500
400
300
200
100
0
Pd, Rated Power
Dissipation (mW)
OPERATING CURRENT lZT(mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
100
50
10
5
1
ZENER IMPEDANCE Z
ZT
(OHMS)
6 8 10 12 14
OPERATING CURRENT lZT(mA)
FIGURE 4
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
8 9 10 11 12 13
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