1N957B thru 1N984B
Vishay Semiconductors
formerly General Semiconductor
Zener Diodes
DO-204AH
(DO-35)
Nominal Zener Voltage
6.8 to 91V
Power Dissipation
500mW
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Vo nge
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Features
• Silicon Planar Power Zener Diodes.
• Standard Zener voltage tolerance is ±5% for
“B” suffix. Other tolerances are available upon request.
Mechanical Data
Case:
DO-35 Glass Case
Weight:
approx. 0.004 oz., 0.13 g
Packaging Codes/Options:
D7/10K per 13" reel (52mm tape)
D8/10K per Ammo tape (52mm tape)
Dimensions in inches and (millimeters)
Maximum Ratings and Thermal Characteristics
Parameter
Zener Current (see Table “Characteristics”)
Power Dissipation at T
L
= 25°C
Thermal Resistance Junction to Ambient Air
Junction Temperature
Storage Temperature Range
(T
A
= 25°C unless otherwise noted)
Symbol
Value
500
(1)
300
(1)
175
–65 to +175
Unit
P
D
R
θJA
T
J
T
S
mW
°C/W
°C
°C
Note:
(1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature.
Document Number 88307
25-Jul-02
www.vishay.com
1
1N957B thru 1N984B
Vishay Semiconductors
formerly General Semiconductor
Electrical Characteristics
Type
Number
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
Nominal
Zener Voltage
V
Z
(3)
(Volts)
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
Test
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
2.0
1.8
1.7
1.5
1.4
(T
J
= 25°C unless otherwise noted)
Maximum V
F
= 1.5V at I
F
= 200mA
Maximum Reverse Current
Maximum
Regulator Current
I
ZM
(2)
(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 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 Vdc
(Volts)
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
56.0
62.2
69.2
Maximum Zener Impedance
(1)
Z
ZT
at 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
at 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
Notes:
(1) The Zener Impedance is derived from the 1 KH
Z
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 25°C ambient temperature.
(3) Measured with device junction in thermal equilibrium.
www.vishay.com
2
Document Number 88307
25-Jul-02
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
1
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