MICROSEMI 1N748A

• 1N746A-1 THRU 1N759-1 AVAILABLE IN
JAN, JANTX AND JANTXV
1N746 thru 1N759A
and
PER MIL-PRF-19500/127
• 1N4370A-1 THRU 1N4372A-1 AVAILABLE IN
JAN, JANTX AND JANTXV
PER MIL-PRF-19500/127
1N746A-1 thru 1N759A-1
and
1N4370 thru 1N4372A
and
• DOUBLE PLUG CONSTRUCTION
1N4370A-1 thru 1N4372A-1
• METALLURGICALLY BONDED
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500 mW @ +50°C
Power Derating: 4 mW / °C above +50°C
Forward Voltage @ 200mA: 1.1 volts maximum
ELECTRICAL CHARACTERISTICS @ 25°C
JEDEC
NOMINAL
ZENER
MAXIMUM
MAXIMUM
TYPE
ZENER
TEST
ZENER
REVERSE CURRENT
ZENER
NUMBER
VOLTAGE
CURRENT
IMPEDANCE
IR@ VR
CURRENT
VZ @ 1ZT
(NOTE 2)
1ZT
(NOTE 1)
(NOTE 3)
MAXIMUM
1
ZM
ZZT@ 1ZT
VOLTS
mA
OHMS
µA
VOLTS
mA
1N4370A
2.4
20
30
100
1.0
155
1N4371A
2.7
20
30
60
1.0
140
1N4372A
3.0
20
29
30
1.0
125
1N746A
3.3
20
28
5
1.0
120
1N747A
3.6
20
24
3
1.0
110
1N748A
3.9
20
23
2
1.0
100
1N749A
4.3
20
22
2
1.0
90
1N750A
4.7
20
19
5
1.5
85
1N751A
5.1
20
17
5
2.0
75
1N752A
5.6
20
11
5
2.5
70
1N753A
6.2
20
7
5
3.5
65
1N754A
6.8
20
5
2
4.0
60
1N755A
7.5
20
6
2
5.0
55
1N756A
8.2
20
8
1
6.0
50
1N757A
9.1
20
10
1
7.0
45
1N758A
10.0
20
17
1
8.0
40
1N759A
12.0
20
30
1
9.0
35
FIGURE 1
DESIGN DATA
CASE: Hermetically sealed glass
case. DO – 35 outline.
LEAD MATERIAL: Copper clad steel.
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (ROJEC):
250 °C/W maximum at L = .375 inch
THERMAL IMPEDANCE: (ZOJX): 35
°C/W maximum
NOTE 1
Zener voltage tolerance on "A" suffix is +5%. No Suffix denotes + 10% tolerance,
"C" suffix denotes + 2% tollerance and "D" suffix denotes + 1% tolerance.
NOTE 2
Zener voltage is measured with the device junction in thermal equilibrium at an ambient
temperature of 25°C + 3°C.
NOTE 3
Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal
to 10% of 1ZT
POLARITY: Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION: Any.
6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841
PHONE (978) 620-2600
FAX (978) 689-0803
WEBSITE: http://www.microsemi.com
13
1N746
1N759A
1N4370
1N4372A
Pd, Rated Power
Dissipation (mW)
thru
and
thru
INCLUDING -1 VERSIONS
500
400
300
200
100
0
0
25
50
75
100
125
150
175
TL, Lead temperature (C°) 3/8” from body
POWER DERATING CURVE
100
ZENER IMPEDANCE ZZT (OHMS)
50
20
10
5
2
1
4
6
10
20
40
60
100
FIGURE 3
operating current (mA)
ZENER IMPEDANCE VS. OPERATING CURRENT
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