ZM4728A to ZM4764A
Vishay Semiconductors
Zener Diodes
Features
• Silicon planar power Zener diodes
• For use in stablilizing and clipping circuits
with high power rating
• Standard Zener voltage tolerance is ± 5 %
• These diodes are also available in the
DO-41 case with type designation
1N4728A to 1N4764A
• AEC-Q101 qualified
• Compliant to RoHS directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
• Halogen-free according to IEC 61249-2-21
definition
18315
Mechanical Data
Case:
MELF DO-213AB (glass)
Weight:
approx. 135 mg
Cathode band color:
black
Packaging codes/options:
GS18/5K per 13" reel (12 mm tape), 10K/box
GS08/1.5K per 7" reel (12 mm tape), 12K/box
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter
Zener current (see Table "Characteristics")
Power dissipation
Note:
1)
Valid provided that electrodes are kept at ambient temperature.
P
tot
1
1)
W
Test condition
Symbol
Value
Unit
Thermal Characteristics
T
amb
= 25 °C, unless otherwise specified
Parameter
Thermal resistance junction to ambient air
Junction temperature
Storage temperature
Note:
1)
Valid provided that electrodes are kept at ambient temperature.
Test condition
Symbol
R
thJA
T
j
T
stg
Value
170
1)
175
- 65 to + 175
Unit
K/W
°C
°C
Document Number 85786
Rev. 1.4, 15-Sep-10
For technical questions within your region, please contact one of the following:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
www.vishay.com
1
ZM4728A to ZM4764A
Vishay Semiconductors
Electrical Characteristics
Part
number
Nominal
Zener
voltage
1)
V
Z
at I
ZT
V
ZM4728A
ZM4729A
ZM4730A
ZM4731A
ZM4732A
ZM4733A
ZM4734A
ZM4735A
ZM4736A
ZM4737A
ZM4738A
ZM4739A
ZM4740A
ZM4741A
ZM4742A
ZM4743A
ZM4744A
ZM4745A
ZM4746A
ZM4747A
ZM4748A
ZM4749A
ZM4750A
ZM4751A
ZM4752A
ZM4753A
ZM4754A
ZM4755A
ZM4756A
ZM4757A
ZM4758A
ZM4759A
ZM4760A
ZM4761A
ZM4762A
ZM4763A
ZM4764A
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
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
Test
current
I
ZT
mA
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7
6.5
6
5.5
5
4.5
4
3.7
3.3
3
2.8
2.5
Maximum dynamic impedance
Maximum reverse
leakage current
I
R
µA
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
5
5
5
5
5
5
5
5
5
5
5
5
Surge
current
3)
Maximum
regulator
current
2)
I
ZM
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
25
23
22
19
18
16
14
13
12
11
10
9
Z
ZT
at I
ZT
Ω
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
Z
ZK
at I
ZK
Ω
400
400
400
400
500
550
600
700
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
3000
I
ZK
mA
1
1
1
1
1
1
1
1
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
0.25
Test voltage at T
A
= 25 °C
V
R
I
R
V
1
1
1
1
1
1
2
3
4
5
6
7
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
76
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
125
115
110
95
90
80
70
65
60
55
50
45
Notes:
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 (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. 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 electrodes are kept at ambient temperature
Measured under thermal equilibrium and DC test conditions.
www.vishay.com
2
For technical questions within your region, please contact one of the following: Document Number 85786
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
Rev. 1.4, 15-Sep-10
ZM4728A to ZM4764A
Vishay Semiconductors
Typical Characteristics
T
amb
= 25 °C, unless otherwise specified
W
1.0
0.8
0.6
P
tot
0.4
0.2
0
18289
0
100
T
amb
200 °C
Figure 1. Admissible Power Dissipation vs. Ambient Temperature
Package Dimensions
in millimeters (inches):
MELF DO-213AB (glass)
2.6 (0.102)
Cathode identification
2.4 (0.094)
0.55 (0.022)
5.2 (0.205)
4.8 (0.189)
The gap
between
plug and glass can
be
either on cathode or anode side
Foot print recommendation:
1.25 (0.049)
min.
4.00 (0.157)
max.
3.00 (0.118)
6.50 (0.256)
18317
ref.
Document Number 85786
Rev. 1.4, 15-Sep-10
For technical questions within your region, please contact one of the following:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
min.
www.vishay.com
3
Legal Disclaimer Notice
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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 in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
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Document Number: 91000
Revision: 11-Mar-11
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