NOTE 1 Zener voltage range equals nominal voltage +5% for “A” Suffix types. No Suffix denotes + 10%.
"C" suffix = + 2% and "D" suffix = + 1%.
NOTE 2 Zener voltage is read using a pulse measurement, 10 milliseconds maximum.
NOTE 3 Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal
to 10% of 1ZT.
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
Forward Voltage @ 200mA: 1.5 volts maximum
Backside is Cathode
FIGURE 1
DESIGN DATA
METALLIZATION:
Top: (Anode).....................Al
Back: (Cathode)..................Au
AL THICKNESS.......25,000 ÅMin
GOLD THICKNESS...4,000 ÅMin
CHIP THICKNESS.............10 Mils
CIRCUIT LAYOUT DATA:
For Zener operation, cathode
must be operated positive with
respect to anode.
TOLERANCES: ALL
Dimensions + 2 mils
ELECTRICAL CHARACTERISTICS @ 25°C
CDI NOMINAL ZENER MAXIMUM MAXIMUM MAXIMUM
TYPE ZENER TEST ZENER REVERSE CURRENT ZENER
NUMBER VOLTAGE CURRENT IMPEDANCE IR@ VRCURRENT
VZ @ IZT IZT (NOTE 3) 1ZM
(NOTE 1) (NOTE 2) ZZT @ IZT
VOLTS mA OHMS
µ
A VOLTS mA
CD4370A 2.4 20 30 100 1.0 155
CD4371A 2.7 20 30 75 1.0 140
CD4372A 3.0 20 29 50 1.0 125
CD746A 3.3 20 28 10 1.0 120
CD747A 3.6 20 24 5 1.0 110
CD748A 3.9 20 23 5 1.0 100
CD749A 4.3 20 22 2 1.0 90
CD750A 4.7 20 19 5 1.5 85
CD751A 5.1 20 17 5 2.0 75
CD752A 5.6 20 11 5 2.5 70
CD753A 6.2 20 7 5 3.5 65
CD754A 6.8 20 5 2 4.0 60
CD755A 7.5 20 6 2 5.0 55
CD756A 8.2 20 8 1 6.0 50
CD757A 9.1 20 10 1 7.0 45
CD758A 10.0 20 17 1 8.0 40
CD759A 12.0 20 30 1 9.0 35
• 1N746A THRU 1N759A AVAILABLE IN JANHC AND JANKC
PER MIL-PRF-19500/127
• 1N4370A THRU 1N4372A AVAILABLE IN JANHC AND JANKC
PER MIL-PRF-19500/127
• ZENER DIODE CHIPS
• 0.5 WATT CAPABILITY WITH PROPER HEAT SINKING
• COMPATIBLE WITH ALL WIRE BONDING DIE ATTACH TECHNIQUES, WITH
THE EXCEPTION OF SOLDER REFLOW
CD746A thru CD759A
and
CD4370A thru CD4372A
23 MILS
15 MILS
15 MILS23 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
CD746A thru CD759A
and
CD4370A thru CD4372A
.1 .2 .5 1 2 5 10 20 50 100
OPERATING CURRENT IZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
ZENER IMPEDANCE ZZT (OHMS)
1000
500
400
300
200
100
50
40
30
20
10
5
4
3
2
1
5.1 VOLT
6.2 VOLT
3.3 VOLT
