SML4728 to SML4764A
Document Number 85782
Rev. 1.6, 22-Oct-08
Vishay Semiconductors
www.vishay.com
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For technical support, please contact: DiodesSSP@vishay.com
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
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
Tamb = 25 °C, unless otherwise specified
Thermal Characteristics
Tamb = 25 °C, unless otherwise specified
15811
Parameter Test condition Symbol Value Unit
Power dissipation TL = 75 °C Ptot 1W
Parameter Test condition Symbol Value Unit
Maximum junction temperature Tj150 °C
Storage temperature range TS- 65 to + 150 °C
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Document Number 85782
Rev. 1.6, 22-Oct-08
SML4728 to SML4764A
Vishay Semiconductors
For technical support, please contact: DiodesSSP@vishay.com
Electrical Characteristics
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 IZT per JEDEC method
Partnumber
Device
marking
code
Nominal
zener
voltage
Test current Maximum dynamic
impedance resistance
Maximum DC reverse
leakage current
Maximum
surge
current
VZ (1) at IZT IZT ZZT at IZT ZZK at IZK IZK IRVRIRM (2)
VmA Ω Ω mA μA V mApk
SML4728 3P3 3.3 76 10 400 1 100 1 1380
SML4729 3P6 3.6 69 10 400 1 100 1 1260
SML4730 3P9 3.9 64 9 400 1 50 1 1190
SML4731 4P3 4.3 58 9 400 1 10 1 1070
SML4732 4P7 4.7 53 8 500 1 10 1 970
SML4733 5P1 5.1 49 7 550 1 10 1 890
SML4734 5P6 5.6 45 5 600 1 10 2 810
SML4735 6P2 6.2 41 2 700 1 10 3 730
SML4736 6P8 6.8 37 3.5 700 1 10 4 660
SML4737 7P5 7.5 34 4 700 0.5 10 5 605
SML4738 8P2 8.2 31 4.5 700 0.5 10 6 550
SML4739 9P1 9.1 28 5 700 0.5 10 7 500
SML4740 10 10 25 7 700 0.25 10 7.6 454
SML4741 11 11 23 8 700 0.25 5 8.4 414
SML4742 12 12 21 9 700 0.25 5 9.1 380
SML4743 13 13 19 10 700 0.25 5 9.9 344
SML4744 15 15 17 14 700 0.25 5 11.4 305
SML4745 16 16 15.5 16 700 0.25 5 12.2 285
SML4746 18 18 14 20 750 0.25 5 13.7 250
SML4747 20 20 12.5 22 750 0.25 5 15.2 225
SML4748 22 22 11.5 23 750 0.25 5 16.7 205
SML4749 24 24 10.5 25 750 0.25 5 18.2 190
SML4750 27 27 9.5 35 750 0.25 5 20.6 170
SML4751 30 30 8.5 40 1000 0.25 5 22.8 150
SML4752 33 33 7.5 45 1000 0.25 5 25.1 135
SML4753 36 36 7 50 1000 0.25 5 27.4 125
SML4754 39 39 6.5 60 1000 0.25 5 29.7 115
SML4755 43 43 6 70 1500 0.25 5 32.7 110
SML4756 47 47 5.5 80 1500 0.25 5 35.8 95
SML4757 51 51 5 95 1500 0.25 5 38.8 90
SML4758 56 56 4.5 110 2000 0.25 5 42.6 80
SML4759 62 62 4 125 2000 0.25 5 47.1 70
SML4760 68 68 3.7 150 2000 0.25 5 51.7 65
SML4761 75 75 3.3 175 2000 0.25 5 56 60
SML4762 82 82 3 200 3000 0.25 5 62.2 55
SML4763 91 91 2.8 250 3000 0.25 5 69.2 50
SML4764 100 100 2.5 350 3000 0.25 5 76 45
SML4728 to SML4764A
Document Number 85782
Rev. 1.6, 22-Oct-08
Vishay Semiconductors
www.vishay.com
3
For technical support, please contact: DiodesSSP@vishay.com
TYPICAL CHARACTERISTICS
Tamb = 25 °C, unless otherwise specified
Fig. 1 - Maximum Continuous Power Dissipation
Fig. 2 - Typical Zener Impedance
Fig. 3 - Typical Temperature Coefficients
25 50 75 100 125 150 175
0
0.25
0.5
0.75
1.0
Terminals Temperature ( °C)
PM(AV)
,Average Power Dissipation (W)
60 Hz
Resistiveor
Inductive Load
P.C.B. Mounted on
0.31 x 0.31 x 0.08"(8x8x 2mm)
copper areas pads
17923
0.5 10 100 500
1
10
100
1,000
IZT
, Zener Test Current (mA)
ZZ, Dynamic Zener Impedance (Ω)
TJ=25°C
VZ=91V
VZ=56V
VZ=30V
VZ=6.2V
17925
010 20 30 40 50 60 70 8090 100
0
10
30
50
70
90
110
VZ, Zener Voltage (V)
ΘVZ, Temperature Coefficient (mV/°C)
Tested at rated IZT
17927
Fig. 4 - Typical Instantaneous Forward Characteristics for
SML4763
Fig. 5 - Typical Reverse Characteristics
0.4 0.6 0.81.0 1.2 1.4 1.6
0.01
0.1
1
10
InstantaneousForward Voltage (V)
InstantaneousForward Current (A)
Pulse width = 300µs
1%Duty Cycle
TJ=25°C
17924
020 40 60 80100
0.01
0.1
1
10
Percent of Rated Zener Voltage (%)
InstantaneousReverse Current ( µA)
TJ=25°C
TJ=100°C
17926
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Document Number 85782
Rev. 1.6, 22-Oct-08
SML4728 to SML4764A
Vishay Semiconductors
For technical support, please contact: DiodesSSP@vishay.com
PACKAGE DIMENSIONS in millimeters (Inches): DO-214AC
Cathode Band
1.32 (0.052) max.
MountingPad Layout
0.305 (0.012)
0.152 (0.006)
1.52 (0.060)
0.76 (0.030)
1.65 (0.065)
1.25 (0.049)
2.29 (0.090)
1.98(0.078)
4.50 (0.177)
3.99 (0.157)
2.79 (0.110)
2.54 (0.100)
18839
5.28(0.208)
4.93 (0.194)
2.15
(0.084).
2.38(0.094) max.
5.58(0.22) Ref.
ISO Method E
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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