1N749A-TR [VISHAY]
Zener Diode, 4.3V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2;
| 型号： | 1N749A-TR |
| 厂家： | 
VISHAY |
| 描述： | Zener Diode, 4.3V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2 二极管 齐纳二极管 测试 |
| 文件： | 总3页 (文件大小：85K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1N746A to 1N759A
VISHAY
Vishay Semiconductors
Zener Diodes
\
Features
• Silicon Planar Power Zener Diodes.
• Standard Zener voltage tolerance is 5 % for "A"
suffix.
94 9367
Packaging codes/options:
TR / 10k per 13 " reel, 30k/box
Mechanical Data
Case: DO-35 Glass Case
TAP / 10k per Ammo tape (52 mm tape), 30k/box
Weight: approx. 130 mg
Absolute Maximum Ratings
Tamb = 25 °C, unless otherwise specified
Parameter
Zenner current (see Table "Characteristics")
Power dissipation
Test condition
Symbol
Ptot
Value
500 1)
Unit
W
Tamb = 75 °C
1) TL is measured that leads at a distance of 3/8 " from case are kept at ambient temperature
Maximum Thermal Resistance
Tamb = 25 °C, unless otherwise specified
Parameter
Test condition
Symbol
RθJA
Value
300 1)
Unit
Thermal resistance junction to
ambient air
°C/W
Maximum junction temperature
Storage temperature range
Tj
175
°C
°C
TS
- 65 to + 175
1) Valid provided that leads at a distance of 3/8 " from case are kept at ambient temperature
Document Number 85756
Rev. 2, 04-Apr-03
www.vishay.com
1
1N746A to 1N759A
Vishay Semiconductors
VISHAY
Electrical Characteristics
1N746A to 1N759A
Partnumber
Nominal Zener
Voltage
Test Current
IZT
Maximum
Dynamic
Impedance
Maximum
Regulator
Current
Maximum Reverse Leakage Current
(IR @ VR = 1V)
3)
1)
2)
Tamb = 25 °C
Tamb = 150 °C
VZ @ IZT
ZZT @ IZT
IZM
V
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Ω
28
24
23
22
19
17
11
7
mA
110
100
95
µA
10
10
10
2
µA
30
30
30
30
30
20
20
20
20
20
20
20
20
20
1N746A
1N747A
1N748A
1N749A
1N750A
1N751A
1N752A
1N753A
1N754A
1N755A
1N756A
1N757A
1N758A
1N759A
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
85
75
2
70
1
65
1
60
0.1
0.1
0.1
0.1
0.1
0.1
0.1
5
55
6
50
8
45
10
17
30
40
35
12
30
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 (IZT) is superimposed on IZT.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
Cathode Identification
∅0.55 max.
technical drawings
according to DIN
specifications
∅1.7 max.
94 9366
Standard Glass Case
54 A 2 DIN 41880
JEDEC DO 35
26 min.
3.9 max.
26 min.
Weight max. 0.3g
www.vishay.com
2
Document Number 85756
Rev. 2, 04-Apr-03
1N746A to 1N759A
VISHAY
Vishay Semiconductors
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
Document Number 85756
Rev. 2, 04-Apr-03
www.vishay.com
3
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