Continental Device India Limited
An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company
SILICON GLASS PASSIVATED 1.0 WATT ZENER DIODES
1N4728A to 1N4764A
3.3V to 100V
1N4187B to 1N4188B
110V to 120V
DO-41
Glass Axial Package
FEATURES
These Zeners are best sutied for General Purpose Industrial, Entertainment, Military & Space Applications.
The Glass Passivated Chips are Hermetically Sealed with Double Studs, Providing Excellent Stability and
Reliability.
ABSOLUTE MAXIMUM RATINGS
DESCRIPTION
Power Dissipation @ T
a
=50ºC
Derate above 50ºC
Operating and Storage Temperature
SYMBOL
P
D
T
stg
VALUE
1
6.67
- 65 to+200
UNIT
W
mW/ºC
ºC
ELECTRICAL CHARACTERISTICS (T
a
=25ºC V
F
<1.2V @ 200mA )
r
ZK
@ I
ZK
V
ZT
** @ I
ZT
r
zt
**
I
ZT
Device
Nominal
MAX
MAX
(mA)
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.50
0.50
0.50
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
(V)
(mA)
(Ω )
Ω
(Ω )
Ω
1N4728A
3.3
10
76.0
400
1N4729A
3.6
10
69.0
400
1N4730A
3.9
9.0
64.0
400
1N4731A
4.3
9.0
58.0
400
1N4732A
4.7
8.0
53.0
500
1N4733A
5.1
7.0
49.0
550
1N4734A
5.6
5.0
45.0
600
1N4735A
6.2
2.0
41.0
700
1N4736A
6.8
3.5
37.0
700
1N4737A
7.5
4.0
34.0
700
1N4738A
8.2
4.5
31.0
700
1N4739A
9.1
5.0
28.0
700
1N4740A
10
7.0
25.0
700
1N4741A
11
8.0
23.0
700
1N4742A
12
9.0
21.0
700
1N4743A
13
10
19.0
700
1N4744A
15
14
17.0
700
1N4745A
16
16
15.5
700
1N4746A
18
20
14.0
750
1N4747A
20
22
12.5
750
1N4748A
22
23
11.5
750
1N4749A
24
25
10.5
750
1N4750A
27
35
9.5
750
1N4751A
30
40
8.5
1000
1N4752A
33
45
7.5
1000
** Pulse Condition : 20ms < t
p
< 50ms, Duty Cycle<2%
* Rectangle wave form ( t
p
=10ms)
Continental Device India Limited
Temp . Coeff
of
Zener Voltage
typ.
%/ ºC
-0.06
-0.06
-0.05
-0.03
-0.01
0.01
0.03
0.04
0.05
0.05
0.06
0.06
0.07
0.07
0.07
0.07
0.08
0.08
0.08
0.08
0.08
0.08
0.09
0.09
0.09
I
R
Max
(µA)
µ
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
5
V
R
I
ZM
Max
I
ZSM
*
Max
(mA)
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
(V)
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
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
(mA)
276
252
234
217
193
178
162
146
133
121
110
100
91
83
76
69
61
57
50
45
41
38
34
30
27
Data Sheet
Page 1 of 4
SILICON GLASS PASSIVATED 1.0 WATT ZENER DIODES
1N4728A to 1N4764A
3.3V to 100V
1N4187B to 1N4188B
110V to 120V
DO-41
Glass Axial Package
ELECTRICAL CHARACTERISTICS (T
a
=25ºC V
F
<1.2V @ 200mA )
r
ZK
@ I
ZK
V
ZT
** @ I
ZT
r
zt
**
I
ZT
Device
Nominal
MAX
MAX
(mA)
(mA)
(V)
(V)
(Ω )
Ω
(Ω )
Ω
(µA)
µ
1N4753A
36
50
7.0
1000
0.25
5
27.4
1N4754A
39
60
6.5
1000
0.25
5
29.7
1N4755A
43
70
6.0
1500
0.25
5
32.7
1N4756A
47
80
5.5
1500
0.25
5
35.8
1N4757A
51
95
5.0
1500
0.25
5
38.8
1N4758A
56
110
4.5
2000
0.25
5
42.6
1N4759A
62
125
4.0
2000
0.25
5
47.1
1N4760A
68
150
3.7
2000
0.25
5
51.7
1N4761A
75
175
3.3
2000
0.25
5
56.0
1N4762A
82
200
3.0
3000
0.25
5
62.2
1N4763A
91
250
2.8
3000
0.25
5
69.2
1N4764A
100
350
2.5
3000
0.25
5
76.0
1N4187B
110
450
2.3
4000
0.25
5
83.6
1N4188B
120
550
2.0
4500
0.25
5
91.2
Tolerance on Nominal V
Z
:
Device 1N4728A to 1N4764A - Suffix' A' specifies + 5% tolerance and without any ' Suffix' + 10%
Device 1N4187B to 1N4188B - Suffix' B' specifies + 5% tolerance
** Pulse Condition : 20ms < t
p
< 50ms, Duty Cycle<2%
* Rectangle wave form ( t
p
=10ms)
Temp . Coeff
of
Zener Voltage
typ.
%/ ºC
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.10
I
R
Max
V
R
I
ZM
Max
(mA)
25
23
22
19
18
16
14
13
12
11
10
9.0
8.6
7.8
I
ZSM
*
Max
(mA)
125
115
110
95
90
80
70
65
60
55
50
45
72
66
Continental Device India Limited
Data Sheet
Page 2 of 4
Notes
1N4728A to 1N4764A
3.3V to 100V
1N4187B to 1N4188B
110V to 120V
DO-41
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).
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 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
1N4728A_64A/1N4187B_88B Rev3 080602E
Continental Device India Limited
Data Sheet
Page 4 of 4
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