SML4728 to SML4764A
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
• Standard voltage tolerance is 10 %, suffix A ± 5 %
• Compliant to RoHS directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
MECHANICAL DATA
Case:
DO-214AC
Terminals:
solder
plated,
solderable
per
MIL-STD- 750, method 2026
Polarity:
color band denotes positive end (cathode)
Mounting position:
any
Weight:
0.002 ounce, 64 mg
15811
Packaging codes/options (antistatic):
SML4728 - SML4764A:
61 to 1.8 k per 7" plastic reel (12 mm tape)
5A to 7.5 k per 13" plastic reel (12 mm tape)
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter
Power dissipation
Test condition
T
L
= 75 °C
Symbol
P
tot
Value
1
Unit
W
Thermal Characteristics
T
amb
= 25 °C, unless otherwise specified
Parameter
Maximum junction temperature
Storage temperature range
Test condition
Symbol
T
j
T
S
Value
150
- 65 to + 150
Unit
°C
°C
Document Number 85782
Rev. 1.6, 22-Oct-08
For technical support, please contact:
DiodesSSP@vishay.com
www.vishay.com
1
SML4728 to SML4764A
Vishay Semiconductors
Electrical Characteristics
Partnumber
Device
marking
code
Nominal
zener
voltage
V
Z (1)
at I
ZT
V
SML4728
SML4729
SML4730
SML4731
SML4732
SML4733
SML4734
SML4735
SML4736
SML4737
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
3P3
3P6
3P9
4P3
4P7
5P1
5P6
6P2
6P8
7P5
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
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 resistance
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
Maximum DC 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
V
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
Maximum
surge
current
I
RM (2)
mApk
1380
1260
1190
1070
970
890
810
730
660
605
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
Notes:
(1)
Based on dc- measurement at thermal equilibrium
(2)
Surge current is a non-repetitive, 8.3 ms pulse width square wave or equivalent sine-wave superimposed on I
ZT
per JEDEC method
www.vishay.com
2
For technical support, please contact:
DiodesSSP@vishay.com
Document Number 85782
Rev. 1.6, 22-Oct-08
SML4728 to SML4764A
Vishay Semiconductors
TYPICAL CHARACTERISTICS
T
amb
= 25 °C, unless otherwise specified
PM(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
= 300µs
1% Duty Cycle
TJ = 25°C
0.4
1.4
1.2
1.0
0.8
0.6
Instantaneous Forward
Voltage
(V)
1.6
0.25
P.C.B. Mounted on
0.31 x 0.31 x 0.08" (8 x
8
x 2mm)
copper areas pads
25
50
75
100
125
150
Terminals Temperature (
°C)
175
0
0.01
17923
17924
Fig. 1 - Maximum Continuous Power Dissipation
Fig. 4 - Typical Instantaneous Forward Characteristics for
SML4763
TJ = 25°C
V
Z = 91V
V
Z = 56V
V
Z = 30V
100
Instantaneous Reverse Current ( µA)
ZZ , Dynamic Zener Impedance (Ω)
1,000
10
1
TJ = 100°C
10
0.1
V
Z = 6.2V
1
0.5
10
100
IZT, Zener Test Current (mA)
500
TJ = 25°C
0.01
0
20
80
60
40
Percent of Rated Zener
Voltage
(%)
100
17925
17926
Fig. 2 - Typical Zener Impedance
Fig. 5 - Typical Reverse Characteristics
Θ
V
Z, Temperature Coefficient (mV/ °C)
110
90
70
50
30
10
0
0
10 20 30 40 50 60 70
80
90 100
V
Z, Zener
Voltage
(V)
Tested at rated IZT
17927
Fig. 3 - Typical Temperature Coefficients
Document Number 85782
Rev. 1.6, 22-Oct-08
For technical support, please contact:
DiodesSSP@vishay.com
www.vishay.com
3
SML4728 to SML4764A
Vishay Semiconductors
PACKAGE DIMENSIONS
in millimeters (Inches):
DO-214AC
0.305 (0.012)
0.152 (0.006)
2.29 (0.090)
1.98 (0.078)
ISO Method E
1.52 (0.060)
0.76 (0.030)
5.28 (0.208)
4.93 (0.194)
Mounting Pad Layout
2.38 (0.094) max.
Cathode Band
1.65 (0.065)
1.25 (0.049)
2.79 (0.110)
2.54 (0.100)
2.15
(0.084).
1.32 (0.052) max.
4.50 (0.177)
18839
5.58 (0.22) Ref.
3.99 (0.157)
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For technical support, please contact:
DiodesSSP@vishay.com
Document Number 85782
Rev. 1.6, 22-Oct-08
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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