• MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS
• ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE
• 8.4 VOLT NOMINAL ZENER VOLTAGE + 5%
• ELECTRICALLY SIMILAR TO 1N3154 THRU 1N3156
• COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES,
WITH THE EXCEPTION OF SOLDER REFLOW
CD3154
thru
CD3156
FIGURE 1
DESIGN DATA
METALLIZATION:
Top: C (Cathode).............Al
A (Anode)................Al
Back:.................................Au
AL THICKNESS.......25,000 ÅMin
GOLD THICKNESS...4,000 ÅMin
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
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
MAXIMUM
JEDEC ZENER ZENER MAXIMUM VOLTAGE TEMPERATURE EFFECTIVE
TYPE VOLTAGE TEST ZENER TEMPERATURE RANGE TEMPERATURE
NUMBER CURRENT IMPEDANCE STABILITY COEFFICIENT
VZT@ I ZT I ZT ZZT ∆V ZT
MAXIMUM
(Note 1) (Note 2)
VOLTS mA OHMS mV °C % / °C
CD3154 8.00-8.80 10 25 130 -55 to + 100 0.01
CD3155 8.00-8.80 10 25 65 -55 to + 100 0.005
CD3156 8.00-8.80 10 25 26 -55 to + 100 0.002
NOTE 1 Zener impedance is derived by superimposing on lZT @ 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.
38 MILS
23 MILS
38 MILS
23 MILS
10 MILS
11 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
CD3154 thru CD3156
0 25 50 75 100 125 150 175
TL, Ambient temperature (C°)
FIGURE 2
POWER DERATING CURVE
600
500
400
300
200
100
0
Pd, Rated Power
Dissipation (mW)
8 9 10 11 12 13
OPERATING CURRENT lZT (mA)
FIGURE 3
ZENER IMPEDANCE
VS.
OPERATING CURRENT
100
50
10
5
1
ZENER IMPEDANCE ZZT (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)
