Rev. D1 www.fairchildsemi.com
Zeners 1N4370A - 1N4372A 1N746A - 1N759A
Electrical Characteristics TA=25°C unless otherwise noted
Device VZ (V) @ IZ = 20mA (Note 1) ZZ (Ω) @ IZ = 20mA IZM (mA)
(Note 2)
IR (µA) @ VR = 1V
Min. Typ. Max. Ta = 25°CTa = 125°C
1N4370A
1N4371A
1N4372A
1N746A
1N747A
2.28
2.57
2.85
3.14
3.42
2.4
2.7
3.0
3.3
3.6
2.52
2.84
3.15
3.47
3.78
30
30
29
28
24
150
135
120
110
100
100
75
50
10
10
200
150
100
30
30
1N748A
1N749A
1N750A
1N751A
1N752A
3.71
4.09
4.47
4.85
5.32
3.9
4.3
4.7
5.1
5.6
4.10
4.52
4.94
5.36
5.88
23
22
19
17
11
95
85
75
70
65
10
2
2
1
1
30
30
30
20
20
1N753A
1N754A
1N755A
1N756A
1N757A
5.89
6.46
7.13
7.79
8.65
6.2
6.8
7.5
8.2
9.1
6.51
7.14
7.88
8.61
9.56
7
5
6
8
10
60
55
50
45
40
0.1
0.1
0.1
0.1
0.1
20
20
20
20
20
1N758A
1N759A
9.50
11.40
10
12
10.5
12.6
17
30
35
30
0.1
0.1
20
20
VF Forward Voltage = 1.5V Max @ IF = 200mA
Notes:
1. Zener Voltage (VZ)
The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30°C ± 1°C and 3/8” lead length.
2. Maximum Zener Current Ratings (IZM)
The maximum current handling capability on a worst case basis is limited by the actual zener voltage at the operation point and the power derating curve.
Zeners
1N4370A - 1N4372A
1N746A - 1N759A
Absolute Maximum Ratings * TA = 25°C unless otherwise noted
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Symbol Parameter Value Units
PDPower Dissipation
@ TL ≤ 75°C, Lead Length = 3/8”
500 mW
Derate above 75°C4.0mW/°C
TJ, TSTG Operating and Storage Temperature Range -65 to +200 °C
Tolerance = 5%
DO-35 Glass case
COLOR BAND DENOTES CATHODE
Rev. D1 www.fairchildsemi.com
Zeners 1N4370A - 1N4372A 1N746A - 1N759A
Top Mark Information
Device Line 1 Line 2 Line 3
1N4370A
1N4371A
1N4372A
1N746A
1N747A
LOGO
LOGO
LOGO
LOGO
LOGO
37
37
37
46
47
0A
1A
2A
A
A
1N748A
1N749A
1N750A
1N751A
1N752A
LOGO
LOGO
LOGO
LOGO
LOGO
48
49
50
51
52
A
A
A
A
A
1N753A
1N754A
1N755A
1N756A
1N757A
LOGO
LOGO
LOGO
LOGO
LOGO
53
54
55
56
57
A
A
A
A
A
1N758A
1N759A
LOGO
LOGO
58
59
A
A
Rev. D1 www.fairchildsemi.com
Zeners 1N4370A - 1N4372A 1N746A - 1N759A
Top Mark Information (Continued)
F
50
A
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Rev. I39
