VISHAY
1N957B to 1N984B
Vishay Semiconductors
Small Signal Zener Diodes
Features
•
•
•
•
•
Very sharp reverse characteristic
Siliconic Planar Power Zener Diodes.
Very high stability
Low reverse current level
V
Z
-tolerance ± 5 %
94 9367
Applications
Voltage stabilization
Mechanical Data
Case:
DO-35 Glass Case
Weight:
approx. 125 mg
Packaging codes/options:
TR / 10 k per 13 " reel, 30 k/box
TAP / 10 k per Ammo tape (52 mm tape), 30 k/box
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter
Zener current table (see Table "
Characteristics ")
Power dissipation
1)
Test condition
Symbol
Value
Unit
P
tot
500
1)
mW
Valid provided that leads at a distance of 3/8 " from case kept at ambient temperature.
Thermal Characteristics
T
amb
= 25 °C, unless otherwise specified
Parameter
Thermal resistance junction to
ambient air
Junction temperature
Storage temperature range
1)
Test condition
Symbol
R
thJA
T
J
T
S
Value
300
1)
175
- 65 to + 175
Unit
°C/W
°C
°C
Valid provided that leads at a distance of 3/8 " from case kept at ambient temperature.
Document Number 85590
Rev. 1.5, 16-Apr-04
www.vishay.com
1
1N957B to 1N984B
Vishay Semiconductors
Electrical Characteristics
Partnumber
Nominal
Zener
Voltage
V
Z3)
V
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
1N977B
1N978B
1N979B
1N980B
1N981B
1N982B
1N983B
1N984B
1)
The
VISHAY
Test Current
Maximum Zener Impedance
1)
Maximum
Regulator
Current
I
ZM2)
mA
58
53
47
43
40
36
32
29
27
24
21
20
18
16
14
13
12
11
10
9.2
8.5
7.8
6.9
6.3
5.7
5.2
4.7
4.3
Maximum Reverse Current
I
ZT
mA
18.5
16.5
15
14
12.5
11.5
10.5
9.5
8.5
7.8
7
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3
2.7
2.5
2.2
2
1.8
1.7
1.5
1.4
Z
ZT
@ I
ZT
Ω
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13
16
17
21
25
29
33
41
49
58
70
80
93
105
125
150
185
230
270
330
440
Z
ZK
@ I
ZK
Ω
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
I
ZK
mA
1
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Maximum I
R
µA
150
75
50
25
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Test Voltage
V
dc
V
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56
62.2
69.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
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)
3)
Valid provided that leads at a distance of 3/8" from case are kept at 25 °C ambient temperature.
Measured with device junction in thermal equilibrium.
www.vishay.com
2
Document Number 85590
Rev. 1.5, 16-Apr-04
VISHAY
Package Dimensions in mm (Inches)
1N957B to 1N984B
Vishay Semiconductors
Cathode Identification
ISO Method E
∅
0.55 (0.02) max.
94 9366
∅
2.0 (0.08) max.
Standard Glass Case
54 A 2 DIN 41880
JEDEC DO 35
26 (1.02) min.
3.9 (0.15) max.
26 (1.02) min.
Document Number 85590
Rev. 1.5, 16-Apr-04
www.vishay.com
3
1N957B to 1N984B
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.
VISHAY
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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4
Document Number 85590
Rev. 1.5, 16-Apr-04
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
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1
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