VISHAY
1N746A to 1N759A
Document Number 85756
Rev. 2, 04-Apr-03
Vishay Semiconductors
www.vishay.com
1
94 9367
Zener Diodes
\
Features
Silicon Planar Power Zener Diodes.
Standard Zener voltage tolerance is 5 % for "A"
suffix.
Mechanical Data
Case: DO-35 Glass Case
Weight: approx. 130 mg
Packaging codes/options:
TR / 10k per 13 " reel, 30k/box
TAP / 10k per Ammo tape (52 mm tape), 30k/box
Absolute Maximum Ratings
T
amb
= 25 C, unless otherwise specified
1)
T
L
is measured that leads at a distance of 3/8 " from case are kept at ambient temperature
Maximum Thermal Resistance
T
amb
= 25 C, unless otherwise specified
1)
Valid provided that leads at a distance of 3/8 " from case are kept at ambient temperature
Parameter
Test condition
Symbol
Value
Unit
Zenner current (see Table "Characteristics")
Power dissipation
T
amb
= 75 C
P
tot
500
1)
W
Parameter
Test condition
Symbol
Value
Unit
Thermal resistance junction to
ambient air
R
JA
300
1)
C/W
Maximum junction temperature
T
j
175
C
Storage temperature range
T
S
- 65 to + 175
C
www.vishay.com
2
Document Number 85756
Rev. 2, 04-Apr-03
VISHAY
1N746A to 1N759A
Vishay Semiconductors
Electrical Characteristics
1N746A to 1N759A
1)
The Zener impedance is derived from the 1 kHz AC voltage which results when an AC current having an RMS value equal to 10 % of
the Zener current (I
ZT
) is superimposed on I
ZT
.Zener impedance is measured at two points to insure a sharp knee on the breakdown curve
and to eliminate unstable units.
2)
Valid provided that leads at a distance of 3/8 " from case are kept at ambient temperature.
3)
Measured with device junction in thermal equilibrium.
Package Dimensions in mm
Partnumber
Nominal Zener
Voltage
Test Current
Maximum
Dynamic
Impedance
Maximum
Regulator
Current
Maximum Reverse Leakage Current
(I
R
@ V
R
= 1V)
V
Z
@ I
ZT
3)
I
ZT
Z
ZT
@ I
ZT
1)
I
ZM
2)
T
amb
= 25 C
T
amb
= 150 C
V
mA
mA
A
A
1N746A
3.3
20
28
110
10
30
1N747A
3.6
20
24
100
10
30
1N748A
3.9
20
23
95
10
30
1N749A
4.3
20
22
85
2
30
1N750A
4.7
20
19
75
2
30
1N751A
5.1
20
17
70
1
20
1N752A
5.6
20
11
65
1
20
1N753A
6.2
20
7
60
0.1
20
1N754A
6.8
20
5
55
0.1
20
1N755A
7.5
20
6
50
0.1
20
1N756A
8.2
20
8
45
0.1
20
1N757A
9.1
20
10
40
0.1
20
1N758A
10
20
17
35
0.1
20
1N759A
12
20
30
30
0.1
20
Cathode Identification
1.7 max.
0.55 max.
3.9 max.
26 min.
technical drawings
according to DIN
specifications
94 9366
Standard Glass Case
54 A 2 DIN 41880
JEDEC DO 35
Weight max. 0.3g
26 min.
VISHAY
1N746A to 1N759A
Document Number 85756
Rev. 2, 04-Apr-03
Vishay Semiconductors
www.vishay.com
3
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and
operatingsystems with respect to their impact on the health and safety of our employees and the public, as
well as their impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are
known as ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs
and forbid their use within the next ten years. Various national and international initiatives are pressing for an
earlier ban on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the
use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments
respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design
and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each
customer application by the customer. Should the buyer use Vishay Semiconductors products for any
unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all
claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal
damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
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