2004 Fairchild Semiconductor Corporation
1N4370A - 1N4372A 1N746A - 1N759A, Rev. C1
Zener
s
1N
4
370A
- 1N43
72A 1N74
6A -
1N759A
Electrical Characteristics
T
A
=25
C unless otherwise noted
Notes:
1. Zener Voltage (V
Z
)
The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (T
L
) at 30
C 1
C and 3/8" lead length.
2. Maximum Zener Current Ratings (I
ZM
)
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.
Device
V
Z
(V) @ I
Z
= 20mA
(Note 1)
Z
Z
(
) @ I
Z
= 20mA
I
ZM
(mA)
(Note 2)
I
R
(
A) @ V
R
= 1V
Min.
Typ.
Max.
Ta = 25
C
Ta = 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
V
F
Forward Voltage = 1.5V Max @ I
F
= 200mA
Zeners
1N4370A - 1N4372A
1N746A - 1N759A
Absolute Maximum Ratings *
T
A
= 25
C unless otherwise noted
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Symbol
Parameter
Value
Units
P
D
Power Dissipation
@ TL
75
C, Lead Length = 3/8"
500
mW
Derate above 75
C
4.0
mW/
C
T
J
, T
STG
Operating and Storage Temperature Range
-65 to +200
C
Tolerance = 5%
DO-35 Glass case
COLOR BAND DENOTES CATHODE
2004 Fairchild Semiconductor Corporation
1N4370A - 1N4372A 1N746A - 1N759A, Rev. C1
Zener
s
1N
4
370A
- 1N43
72A 1N74
6A -
1N759A
Top Mark Information
Device
Line 1
Line 2
Line 3
Line 5
1N4370A
1N4371A
1N4372A
1N746A
1N747A
LOGO
LOGO
LOGO
LOGO
LOGO
437
437
437
746
747
0A
1A
2A
A
A
XY
XY
XY
XY
XY
1N748A
1N749A
1N750A
1N751A
1N752A
LOGO
LOGO
LOGO
LOGO
LOGO
748
749
750
751
752
A
A
A
A
A
XY
XY
XY
XY
XY
1N753A
1N754A
1N755A
1N756A
1N757A
LOGO
LOGO
LOGO
LOGO
LOGO
753
754
755
756
757
A
A
A
A
A
XY
XY
XY
XY
XY
1N758A
1N759A
LOGO
LOGO
758
759
A
A
XY
XY
2004 Fairchild Semiconductor Corporation
1N4370A - 1N4372A 1N746A - 1N759A, Rev. C1
Zener
s
1N
4
370A
- 1N43
72A 1N74
6A -
1N759A
Top Mark Information
(Continued)
General Requirements:
1.0 Cathod Band
2.0 First Line: F - Fairchild Logo
3.0 Second Line: Device name - For 1Nxx series: 3
rd
to 5th characters of the device name.
For BZxx series: 4
th
to 6
th
characters of the device name.
4.0 Third Line: Device name - For 1Nxx series: 6
th
to 7
th
characters of the device name.
For BZXyy series: Voltage rating
5.0 Fourth Line: XY or XYL - Two Digit - Six Weeks Date Code
Where: X represents the last digit of the calendar year
Y represents the Six weeks numeric code
L represents the Large die identification
6.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec).
7.0 Maximum no. of marking lines: 4
8.0 Maximum no. of digits per line: 3
9.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line.
10.0 Marking Font: Arial (Except FSC Logo)
11.0 First character of each marking line must be aligned vertically
F
522
9B
XY
1
st
line: F - Fairchild Logo
2
nd
line: Device Name - 3
rd
to 5
th
characters of the device name.
or 4
th
to 6
th
characters for BZXyy series
3
rd
line: Device Name - 6
th
to 7
th
characters of the device name.
or Voltage rating for BZXyy series
4
th
line: Device Code or - Two Digit - Six Weeks Date Code.
Date code plus or Two Digit - Six Weeks Date Code
Large die identification plus Large die identification, "L"
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY
ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT
CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Formative or
In Design
First Production
Full Production
Not In Production
ImpliedDisconnectTM
ISOPLANARTM
LittleFETTM
MICROCOUPLERTM
MicroFETTM
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2
CTM
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2
CMOSTM
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