GLL4735 to GLL4763A
Document Number 85781
Rev. 1.4, 06-Aug-04
Vishay Semiconductors
www.vishay.com
1
18267
Zener Diodes
Features
• Plastic package has Underwriters Laboratory
Flammability Classification 94 V-0
• For surface mounted applications
• Glass passivated chip junction
• Low zener impedance
• Low regulation factor
• High temperature soldering guaranteed:
250 °C/ 10 seconds at terminals
Mechanical Data
Case: MELF Plastic molded plastic over glass passi-
vated junction
Terminals: Solder plated, solderable per MIL-STD-
750, Method 2026
Polarity: Red band denotes Zener diode and positive
end (cathode)
Mounting Position: Any
Weight: 0.0046oz., 116 mg
Packaging codes/options:
26 / 5 k per 13 " Reel (12 mm tape), 60 k/box
46 / 1.5 k per 7 " Reel (12 mm tape), 30 k/box
Absolute Maximum Ratings
Tamb = 25 °C, unless otherwise specified
Thermal Characteristics
Tamb = 25 °C, unless otherwise specified
Parameter Test condition Symbol Value Unit
Zener current (see Table
"Characteristics")
Power dissipation Ptot 1.0 3) W
Parameter Test condition Symbol Value Unit
Thermal resistance junction to
ambient air
RthJA 170 °C/W
Junction temperature Tj150 °C
Storage temperature TS- 65 to + 150 °C
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Document Number 85781
Rev. 1.4, 06-Aug-04
GLL4735 to GLL4763A
Vishay Semiconductors
Electrical Characteristics
(1) Standard voltage tolerance is ± 10 %, Suffix A = ± 5 %
(2) Surge current is a non-repetitive, 8.3 ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC Method
(3) Maximum steady state power dissipation is 1.0 watt at TT = 75 °C
Partnumber Nominal
Zener
Voltage 1)
Tes t
Current
Maximum Dynamic Impedance Maximum DC Reverse
Leakage Current
Maximum
Zener
Current(2)
Maximum
Forward
Voltage
VZ @ IZT IZT1 ZZT @ IZT ZZK @ IZK IZK IRVRIZM VF
@ 200 mA
VmA Ω Ω mA µA V mApk V
GLL4735 6.2 41 2 700 1 50 3 730 1.2
GLL4736 6.8 37 3.5 700 1 10 4 660 1.2
GLL4737 7.5 34 4 700 0.5 10 5 605 1.2
GLL4738 8.2 31 4.5 700 0.5 10 6 550 1.2
GLL4739 9.1 28 5 700 0.5 10 7 500 1.2
GLL4740 10 25 7 700 0.25 10 7.6 454 1.2
GLL4741 11 23 8 700 0.25 5 8.4 414 1.2
GLL4742 12 21 9 700 0.25 5 9.1 380 1.2
GLL4743 13 19 10 700 0.25 5 9.9 344 1.2
GLL4744 15 17 14 700 0.25 5 11.4 305 1.2
GLL4745 16 15.5 16 700 0.25 5 12.2 285 1.2
GLL4746 18 14 20 750 0.25 5 13.7 250 1.2
GLL4747 20 12.5 22 750 0.25 5 15.2 225 1.2
GLL4748 22 11.5 23 750 0.25 5 16.7 205 1.2
GLL4749 24 10.5 25 750 0.25 5 18.2 190 1.2
GLL4750 27 9.5 35 750 0.25 5 20.6 170 1.2
GLL4751 30 8.5 40 1000 0.25 5 22.8 150 1.2
GLL4752 33 7.5 45 1000 0.25 5 25.1 135 1.2
GLL4753 36 7 50 1000 0.25 5 27.4 125 1.2
GLL4754 39 6.5 60 1000 0.25 5 29.7 115 1.2
GLL4755 43 6 70 1500 0.25 5 32.7 110 1.2
GLL4756 47 5.5 80 1500 0.25 5 35.8 95 1.2
GLL4757 51 5 95 1500 0.25 5 38.8 90 1.2
GLL4758 56 4.5 110 2000 0.25 5 42.6 80 1.2
GLL4759 62 4 125 2000 0.25 5 47.1 70 1.2
GLL4760 68 3.7 150 2000 0.25 5 51.7 65 1.2
GLL4761 75 3.3 175 2000 0.25 5 56 60 1.2
GLL4762 82 3 200 3000 0.25 5 62.2 55 1.2
GLL4763 91 2.8 250 3000 0.25 5 69.2 50 1.2
GLL4735 to GLL4763A
Document Number 85781
Rev. 1.4, 06-Aug-04
Vishay Semiconductors
www.vishay.com
3
Typical Characteristics (Tamb = 25 °C unless otherwise specified)
Figure 1. Maximum Continuous Power Dissipation
Figure 2. Typical Instantaneous Forward Characteristics for
GLL4763
Figure 3. Typical Temperature Coefficients
0
0.25
0.5
0.75
1.0
7525 50 100 125 150 175
P
M(AV) --
Average Power Dissipation (W)
Terminals Temperature ( °C)
60Hz
Resistive or
Inductive Load
P.C.B. Mounted on
0.31 x 0.31 x 0.08Ó(8 x 8 x 2mm)
Copper Areas Pads
18210
Instantaneous Forward Current (A)
0.01
0.1
1
10
0.4 0.6 0.8
Instantaneous Forward Voltage (V)
11.21.41.6
Pulse Width = 300 s
1% Duty Cycle
T
J
=25°C
18211
90
70
50
30
10
0
110
03010 40 50 60 70 80 90 100
V
Z
-- Temperature Coefficient (mV/°C)
Tested at Rated I
ZT
V
Z
- Zener Voltage (V)
20
18212
Figure 4. Typical Zener Impedance
Figure 5. Typical Reverse Characteristics
10
11010.5
100
1,000
IZT -- Zener Test Current (mA)
T
J
=25°C
100 500
V
Z
=91V
V
Z
=56V
V
Z
=30V
V
Z
=6.2V
Z
Z
--Dynamic Zener Impedance (Ω)
18213
Instantaneous Reverse Current (µA)
0.01
0.1
1
10
02040
Percent of Rated Zener Voltage (%)
60 80 100
TJ= 25°C
TJ=100°C
18214
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Document Number 85781
Rev. 1.4, 06-Aug-04
GLL4735 to GLL4763A
Vishay Semiconductors
Package Dimensions in Inches (mm)
18268
Solderable Ends
1st Band
D2=D1
+0
-0.008 (0.20)
D2
0.022 (0.56)
0.018 (0.46)
0.205 (5.2)
0.185 (4.7)
1st Band denotes type and positive end (cathode)
0.022 (0.56)
0.018 (0.46)
D1 =
0.105
(2.67)
0.095
(2.41)
Mounting Pad Layout
0.049 (1.25)
Min.
0.1.57 (4.00)
Max.
0.256 (6.50)
Ref.
0.118 (3.00)
Min.
ISO Method E
GLL4735 to GLL4763A
Document Number 85781
Rev. 1.4, 06-Aug-04
Vishay Semiconductors
www.vishay.com
5
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1. Meet all present and future national and international statutory requirements.
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operatingsystems with respect to their impact on the health and safety of our employees and the public, as
well as their impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are
known as ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs
and forbid their use within the next ten years. Various national and international initiatives are pressing for an
earlier ban on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use
of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments
respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design
and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each
customer application by the customer. Should the buyer use Vishay Semiconductors products for any
unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all
claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal
damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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