1N4678 Zeners Datasheet

1N4678 Datasheet, PDF, Equivalent


Part Number

1N4678

Description

Zeners

Manufacture

Fairchild Semiconductor

Total Page 2 Pages
Datasheet
Download 1N4678 Datasheet


1N4678
Zeners
1N4678 - 1N4702
Absolute Maximum Ratings * TA = 25°C unless otherwise noted
Symbol
Parameter
Value
PD Power Dissipation
@ TL 75°C, Lead Length = 3/8”
Derate above 75°C
500
4.0
TJ, TSTG Operating and Storage Temperature Range -65 to +200
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Units
mW
mW/°C
°C
Tolerance = 5%
DO-35 Glass case
COLOR BAND DENOTES CATHODE
Electrical Characteristics TA=25°C unless otherwise noted
Device
1N4678
1N4679
1N4680
1N4681
1N4682
VZ (Volts) @ IZ = 50µA (Note 1)
Min.
Typ.
Max.
1.71
1.8
1.89
1.9 2
2.1
2.09
2.28
2.2
2.4
2.31
2.52
2.565
2.7
2.835
IR @ VR
µA Volts
7.5 1
51
41
21
11
1N4683
1N4684
1N4685
1N4686
1N4687
2.85
3.135
3.42
3.705
4.085
3
3.3
3.6
3.9
4.3
3.15
0.8
1
4.465 7.5 1.5
3.78
7.5
2
4.095
5
2
4.515
4
2
1N4688
1N4689
1N4690
1N4691
1N4692
4.465
4.845
5.32
5.89
6.45
4.7
5.1
5.6
6.2
6.8
4.935
5.355
5.88
6.51
7.14
10
10
10
10
10
3
3
4
5
5.1
1N4693
1N4694
1N4695
1N4696
1N4697
7.125
7.79
8.265
8.645
9.5
7.5
8.2
8.7
9.1
10
7.785
8.61
9.135
9.555
10.5
10
1
1
1
1
5.7
6.2
6.6
6.9
7.6
1N4698
1N4699
1N4700
1N4701
1N4702
10.45
11.4
12.35
13.3
14.25
11
12
13
14
15
11.55
0.05
8.4
12.6
0.05
9.1
13.65
0.05
9.8
14.7
0.05
10.6
15.75
0.05
11.4
VF Forward Voltage = 1.5V Max @ IF = 100mA
IZM (mA)
(Note 2)
120
110
100
95
90
85
80
75
70
65
60
55
50
45
35
31.8
29
27.4
26.2
24.8
21.6
20.4
19
17.5
16.3
VZ (Volts)
(Note 3)
0.7
0.7
0.75
0.8
0.85
0.9
0.95
0.95
0.97
0.99
0.99
0.97
0.96
0.95
0.9
0.75
0.5
0.1
0.08
0.1
0.11
0.12
0.13
0.14
0.15
Notes:
1. Zener Voltage (VZ)
The zener voltage is measured with the device junction in the themal 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.
3. Maximum Voltage Change (VZ)
Voltage change is equal to the difference between VZ at 100µA and at 10µA.
©2003 Fairchild Semiconductor Corporation
1N4678 - 1N4702, Rev. B

1N4678
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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.
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Across the board. Around the world.™ OCXPro™
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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.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTENAPPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
systems which, (a) are intended for surgical implant into
support device or system whose failure to perform can
the body, or (b) support or sustain life, or (c) whose
be reasonably expected to cause the failure of the life
failure to perform when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
effectiveness.
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
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.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. I3


Features Zeners 1N4678 - 1N4702 Zeners 1N4678 - 1N4702 Absolute Maximum Ratings * TA = 25°C unless otherwise noted Symbol Parameter Value PD Power Dissipation @ TL ≤ 75°C, Lead Length = 3/8” De rate above 75°C 500 4.0 TJ, TSTG Ope rating and Storage Temperature Range -6 5 to +200 * These ratings are limiting values above which the serviceability o f the diode may be impaired. Units mW mW/°C °C Tolerance = 5% DO-35 Glass case COLOR BAND DENOTES CATHODE Electr ical Characteristics TA=25°C unless ot herwise noted Device 1N4678 1N4679 1N4 680 1N4681 1N4682 VZ (Volts) @ IZ = 50 µA (Note 1) Min. Typ. Max. 1.71 1 .8 1.89 1.9 2 2.1 2.09 2.28 2.2 2. 4 2.31 2.52 2.565 2.7 2.835 IR @ V R µA Volts 7.5 1 51 41 21 11 1N4683 1 N4684 1N4685 1N4686 1N4687 2.85 3.135 3.42 3.705 4.085 3 3.3 3.6 3.9 4.3 3. 15 0.8 1 4.465 7.5 1.5 3.78 7.5 2 4.095 5 2 4.515 4 2 1N4688 1N46 89 1N4690 1N4691 1N4692 4.465 4.845 5. 32 5.89 6.45 4.7 5.1 5.6 6.2 6.8 4.935 5.355 5.88 6.51 7.14 .
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