SML4738 to SML4764A
www.vishay.com
Vishay Semiconductors
Surface Mount Zener Diodes
FEATURES
• Plastic package has underwriters laboratory
flammability classification 94 V-0
• For surface mounted applications
• Low Zener impedance
• Low regulation factor
• High temperature soldering guaranteed:
260 °C/10 s at terminals
SMA (DO-214AC)
DESIGN SUPPORT TOOLS
Models
Available
• Standard voltage tolerance is ± 10 %, suffix A ± 5 %
• AEC-Q101 qualified available
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
click logo to get started
MECHANICAL DATA
Base P/N-E3 - RoHS-compliant, commercial grade
Base P/NHE3_X - RoHS-compliant and AEC-Q101 qualified
(“_X” denotes revision code e.g. A, B, ...)
PRIMARY CHARACTERISTICS
PARAMETER
V
Z
range nom.
Test current I
ZT
V
Z
specification
Circuit configuration
VALUE
8.2 to 100
2.5 to 31
Pulse current
Single
UNIT
V
mA
ORDERING INFORMATION
DEVICE NAME
SML4738 to SML4764A
SML4738HE3_A/I
SML4738-E3/61
SML4738 to SML4764A
SML4738HE3_A/H
1800 (12 mm tape on 7" plastic reel)
1800
ORDERING CODE
SML4738-E3/5A
7500 (12 mm tape on 13" plastic reel)
7500
TAPED UNITS PER REEL
MINIMUM ORDER QUANTITY
PACKAGE
PACKAGE NAME
SMA (DO-214AC)
WEIGHT
64 mg
MOLDING COMPOUND MOISTURE SENSITIVITY
FLAMMABILITY RATING
LEVEL
UL 94 V-0
MSL level 1
(according J-STD-020)
SOLDERING CONDITIONS
Peak temperature max. 260 °C
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Power dissipation
Junction temperature
Storage temperature range
TEST CONDITION
T
L
= 75 °C
SYMBOL
P
tot
T
j
T
stg
VALUE
1000
150
-65 to +150
UNIT
mW
°C
°C
Rev. 2.1, 24-Jan-2019
Document Number: 85782
1
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SML4738 to SML4764A
www.vishay.com
Vishay Semiconductors
REVERSE
CURRENT
I
R
at V
R
μA
MAX.
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
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
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
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
V
MAX.
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
SURGE
CURRENT
(1)
I
RM
mA
pk
MAX.
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
MAX.
550
500
454
414
380
344
305
285
250
225
205
190
170
150
135
125
115
110
95
90
80
70
65
60
55
50
45
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
ZENER VOLTAGE
RANGE
PART
NUMBER
MARKING
CODE
V
Z
at I
ZT1
V
NOM.
SML4738
SML4739
SML4740
SML4741
SML4742
SML4743
SML4744
SML4745
SML4746
SML4747
SML4748
SML4749
SML4750
SML4751
SML4752
SML4753
SML4754
SML4755
SML4756
SML4757
SML4758
SML4759
SML4760
SML4761
SML4762
SML4763
SML4764
8P2
9P1
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
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
ZT1
mA
I
ZT2
DYNAMIC RESISTANCE
Z
Z
at I
ZT1
Z
ZK
at I
ZT2
Note
(1)
Surge current is a non-repetitive, 8.3 ms pulse width square wave or equivalent sine-wave superimposed on I
®
ZT
per JEDEC method
Rev. 2.1, 24-Jan-2019
Document Number: 85782
2
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SML4738 to SML4764A
www.vishay.com
BASIC CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
Vishay Semiconductors
P
M(AV)
, Average Power Dissipation (W)
0.75
60 Hz
resistive or
inductive load
Instantaneous Forward Current (A)
1.0
10
1
0.5
0.1
Pulse width = 300 µs
1 % duty cycle
T
J
= 25 °C
0.4
1.4
1.2
1.0
0.6
0.8
Instantaneous Forward Voltage (V)
1.6
0.25
PCB mounted on
0.31 x 0.31 x 0.08" (8 x 8 x 2 mm)
copper areas pads
25
100
75
125
50
150
Terminals Temperature (
°C)
175
0
0.01
17923
17924
Fig. 1 - Maximum Continuous Power Dissipation
Fig. 4 - Typical Instantaneous Forward Characteristics
for SML4763
T
J
= 25 °C
V
Z
= 91 V
V
Z
= 56 V
V
Z
= 30 V
100
Instantaneous Reverse Current ( µA)
Z
Z
, Dynamic Zener Impedance (Ω)
1000
10
1
T
J
= 100 °C
10
0.1
T
J
= 25 °C
0.01
0
20
80
40
60
Percent of Rated Zener Voltage (%)
100
1
0.5
10
100
I
ZT
, Zener Test Current (mA)
500
17925
17926
Fig. 2 - Typical Zener Impedance
Fig. 5 - Typical Reverse Characteristics
Θ
V
Z
, Temperature Coefficient (mV/ °C)
110
90
70
Tested at rated I
ZT
50
30
10
0
0
10 20 30 40 50 60 70 80 90 100
V
Z
, Zener Voltage (V)
17927
Fig. 3 - Typical Temperature Coefficients
Rev. 2.1, 24-Jan-2019
Document Number: 85782
3
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SML4738 to SML4764A
www.vishay.com
PACKAGE DIMENSIONS
in inches (millimeters):
SMA (DO-214AC)
SMA
(DO-214AC)
Cathode Band
Vishay Semiconductors
Mounting Pad Layout
0.074 (1.88)
MAX.
0.065 (1.65)
0.049 (1.25)
0.110 (2.79)
0.100 (2.54)
0.066 (1.68)
MIN.
0.177 (4.50)
0.157 (3.99)
0.012 (0.305)
0.006 (0.152)
0.060 (1.52)
MIN.
0.208 (5.28)
REF.
0.090 (2.29)
0.078 (1.98)
0.060 (1.52)
0.030 (0.76)
0.008 (0.203)
0 (0)
0.208 (5.28)
0.194 (4.93)
Rev. 2.1, 24-Jan-2019
Document Number: 85782
4
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
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
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
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. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
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