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• 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
MAXIMUM RATINGS
15 MILS
23 MILS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
Forward Voltage @ 200mA: 1.5 volts maximum
ELECTRICAL CHARACTERISTICS @ 25°C
CDI
NOMINAL
ZENER
MAXIMUM
TYPE
ZENER
TEST
ZENER
REVERSE CURRENT
MAXIMUM
MAXIMUM
ZENER
NUMBER
VOLTAGE
CURRENT
IMPEDANCE
IR @ VR
CURRENT
V @I
Z
ZT
(NOTE 2)
I
ZT
(NOTE 1)
VOLTS
mA
OHMS
µA
VOLTS
mA
CD4370A
2.4
20
30
100
1.0
155
CD4371A
2.7
20
30
75
1.0
140
(NOTE 3)
1
ZM
Z
@I
ZT
ZT
Backside is Cathode
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
FIGURE 1
DESIGN DATA
METALLIZATION:
Top:
(Anode).....................Al
Back: (Cathode)..................Au
AL THICKNESS.......25,000 Å Min
GOLD THICKNESS...4,000 Å Min
CHIP THICKNESS.............10 Mils
CIRCUIT LAYOUT DATA:
For Zener operation, cathode
must be operated positive with
respect to anode.
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.
6 LAKE STREET, LAWRENCE,
PHONE (978) 620-2600
WEBSITE: http://www.microsemi.com
TOLERANCES: ALL
Dimensions + 2 mils
M A S S A C H U S E T T S 01841
FAX (978) 689-0803
175
CD746A
CD4370A
thru
and
thru
CD759A
CD4372A
1000
500
400
300
3.3 VOLT
ZENER IMPEDANCE ZZT (OHMS)
200
100
5.1 VOLT
50
40
30
20
10
5
4
6.2 VOLT
3
2
1
.1
.2
.5
1
2
5
10
20
50
100
OPERATING CURRENT IZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
176