Continental Device India Limited
An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company
SILICON 400mW ZENER DIODES 6.8V TO 47V
1N957B to 1N977B
DO- 35
Glass Axial Package
Hermetically Sealed Glass Package Zener Diodes
ABSOLUTE MAXIMUM RATINGS (T
a
=25ºC unless specified otherwise )
DESCRIPTION
Zener Voltage
Steady State Power Dissipation
Derating Factor above 50ºC
Operating and Storage Temperature
VALUE
6.8 to 47
400
3.2
-65 to +175
UNIT
V
mW
mW/ºC
ºC
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise )
Device * Nominal
(Note 1)
Zener
Voltage
V
Z
@ I
ZT
Zener
Test
Current
I
ZT
Max Zener
Impedance
Z
ZT
@
I
ZT
(Ω )
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
Z
ZK
@
Z
ZK
(Ω )
Ω
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
I
ZK
(mA)
1.0
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
(µA)
µ
150
75
50
25
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
(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
(mA)
55
50
45
41
38
32
31
28
25
24
20
18
16
15
13
12
11
10
9.5
8.8
7.9
(mA)
300
275
250
225
200
175
160
150
130
120
110
100
90
80
70
65
60
55
46
44
40
% / ºC
+0.05
+0.058
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.083
+0.085
+0.086
+0.087
+0.088
+0.090
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
Max Reverse
Leakage Current
I
R
@ V
R
VF < 1.5V max @ I
F
=200mA
Max DC
Max. Surge
Zener Current
Current
(Recurrent)
I
Z
( Surge)
I
ZM
Max Temp.
Coefficient
Voltage
Vz
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
1N977B
(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
(mA)
18.5
16.5
15
14
12.5
11.5
10.5
9.5
8.5
7.8
7.0
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3.0
2.7
Note (1) : Part No. suffix specifies the Tolerance of V
Z
No Suffix = +/- 20%
Suffix A = +/- 10%
* Pulse Condition : 20mS < tp 50mS, Duty Cycle <2%
1N957_77Rev080402D
Suffix B = +/- 5%
Continental Device India Limited
Data Sheet
Page 1 of 3
1N957B to 1N977B
DO- 35
Glass Axial Package
DO-35 Glass Axial Package
A
B
A
DIM
MIN
MAX
—
A
25.40
B
3.05 4.15
C
0.46 0.56
D
1.70 2.29
All dimensions are in mm.
C
NOTE:
Cathode is marked by Band.
D
DO-35, 52mm Taping Specification
1.05 MAX.
1.5 R MAX.
5.50
4.50
52 mm Taping Specification
1.
2.
3.
4.
5.
T & A indicates Axial Tape and Ammo
Packing (52 mm Tape Spacing).
300 mm (min) leader tape on every tape.
No. of empty places allowed 0.25%
without consecutive empty places.
Ends of leads shall preferably not
protrude beyond the tapes.
Components shall be held sufficiently in
the tape or tapes so that they
can not come free in normal handling.
CENTRE LINE
± 1.05
54.00
6.0
11 DIODES
52.0
48.0
5.0
50.00
All dimensions are in mm.
LEADER
6 . 0
± 1. 0
52
±2.
.0
0
DIODE AMMO PACK
TAPES
FE
ED
6.0
±1.0
±2.0
83.0
LABEL
.0
±2
.0
255
DO-35:- 5000 pcs./Ammo Pack
On request also available
in 26 mm Tape
80.
±2.0
0
Packing Detail
PACKAGE
Details
DO-35 T&A
5K/
ammo box
STANDARD PACK
Net Weight/
Qty
0.88 kg/ pcs
5K
Size
10" x 3.2" x 3.2"
INNER CARTON BOX
Qty
5K
Size
OUTER CARTON BOX
Qty
125K
Gr Wt
25 kgs
12.7" x 12.7" x 20"
1N957_77Rev080402D
Continental Device India Limited
Data Sheet
Page 2 of 3
1N957B to 1N977B
DO- 35
Glass Axial Package
Component Disposal Instructions
1. CDIL Semiconductor Devices are RoHS compliant, customers are requested to please dispose
as per prevailing Environmental Legislation of their Country.
2. In Europe, please dispose as per EU Directive 2002/96/EC on Waste Electrical and Electronic Equipment (WEEE).
Customer Notes
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Semiconductor Device(s) best suited for application in
your product(s) as per your requirement. It is recommended that you completely review our Data Sheet(s) so as to confirm that the
Device(s) meet functionality parameters for your application. The information furnished in the Data Sheet and on the CDIL Web Site/CD
are believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or incomplete information.
Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product; neither does it convey
any license under its patent rights nor rights of others. These products are not designed for use in life saving/support appliances or
systems. CDIL customers selling these products (either as individual Discrete Semiconductor Devices or incorporated in their end
products), in any life saving/support appliances or systems or applications do so at their own risk and CDIL will not be responsible for any
damages resulting from such sale(s).
CDIL strives for continuous improvement and reserves the right to change the specifications of its products without prior notice.
CDIL is a registered Trademark of
Continental Device India Limited
C-120 Naraina Industrial Area, New Delhi 110 028, India.
Telephone + 91-11-2579 6150,
4141
1112 Fax + 91-11-2579 5290,
4141
1119
email@cdil.com
www.cdilsemi.com
1N957_77Rev080402D
Continental Device India Limited
Data Sheet
Page
3
of
3
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