VISHAY LL4448-GS18

LL4148 / LL4448
VISHAY
Vishay Semiconductors
Fast Switching Diode
Features
• Silicon Epitaxial Planar Diodes
• Electrical data identical with the devices 1N4148
and 1N4448 respectively
Applications
Extreme fast switches
94 9371
Mechanical Data
Case: MiniMELF Glass Case (SOD-80C)
Weight: approx. 30.8 mg
Cathode Band Color:
Packaging Codes/Options:
GS18 / 10 k per 13" reel (8 mm tape), 10 k/box
GS08 / 2.5 k per 7" reel (8 mm tape), 12.5 k/box
Parts Table
Part
Type differentiation
Ordering code
Remarks
LL4148
VRRM = 100 V, VF @ IF 50 mA < 1 V, Single Diodes
LL4148-GS18 or LL4148-GS08
Tape and Reel
LL4448
VRRM = 100 V, VF @ IF 100 mA < 1 V, Single Diodes
LL4448-GS18 or LL4448-GS08
Tape and Reel
Absolute Maximum Ratings
Tamb = 25 °C, unless otherwise specified
Parameter
Test condition
Repetitive peak reverse voltage
Reverse voltage
Peak forward surge current
tp = 1 µs
Repetitive peak forward current
Forward current
Average forward current
VR = 0
Power dissipation
Symbol
Value
Unit
VRRM
100
V
VR
75
V
IFSM
2
A
IFRM
500
mA
mA
IF
300
IFAV
150
mA
PV
500
mW
Symbol
Value
Unit
RthJA
500
K/W
Tj
175
°C
Tstg
- 65 to + 175
°C
Thermal Characteristics
Tamb = 25 °C, unless otherwise specified
Parameter
Junction ambient
Junction temperature
Storage temperature range
Document Number 85557
Rev. 1.7, 06-Feb-04
Test condition
on PC board
50 mm x 50 mm x 1.6 mm
www.vishay.com
1
LL4148 / LL4448
VISHAY
Vishay Semiconductors
Electrical Characteristics
Tamb = 25 °C, unless otherwise specified
Parameter
Test condition
Forward voltage
Reverse current
Symbol
Min
IF = 5 mA
VF
0.62
IF = 50 mA
VF
0.86
IF = 100 mA
VF
0.93
1
V
VR = 20 V
IR
25
nA
VR = 20 V, Tj = 150 °C
IR
50
µA
VR = 75 V
IR
5
µA
IR = 100 µA, tp/T = 0.01,
tp = 0.3 ms
Breakdown voltage
VR = 0, f = 1MHz, VHF = 50 mV
CD
Rectification efficiency
VHF = 2 V, f = 100 MHz
ηr
Reverse recovery time
IF = IR = 10 mA,
iR = 1 mA
IF = 10 mA, VR = 6 V,
iR = 0.1 x IR, RL = 100 Ω
Max
Unit
0.72
V
1
V
100
V(BR)
Diode capacitance
Typ.
V
4
pF
trr
8
ns
trr
4
ns
45
%
Typical Characteristics (Tamb = 25 °C unless otherwise specified)
1000
1000
LL4448
IF - Forward Current ( mA)
IF - Forward Current ( mA)
LL4148
100
Scattering Limit
10
1
100
Scattering Limit
10
1
Tj = 25 ° C
Tj = 25 ° C
0.1
0.1
0
94 9096
0.4
0.8
1.2
1.6
V F - Forward Voltage ( V )
Fig. 1 Forward Current vs. Forward Voltage
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2
2.0
0
94 9097
0.4
0.8
1.2
1.6
2.0
V F - Forward Voltage ( V )
Fig. 2 Forward Current vs. Forward Voltage
Document Number 85557
Rev. 1.7, 06-Feb-04
LL4148 / LL4448
VISHAY
Vishay Semiconductors
3.0
C D - Diode Capacitance ( pF )
I R - Reverse Current ( nA )
1000
Tj = 25 ° C
100
Scattering Limit
10
2.0
1.5
1.0
0.5
1
0
1
94 9098
f = 1 MHz
Tj = 25 ° C
2.5
10
100
0.1
V R - Reverse Voltage ( V )
94 9099
Fig. 3 Reverse Current vs. Reverse Voltage
1
10
100
V R - Reverse Voltage ( V )
Fig. 4 Diode Capacitance vs. Reverse Voltage
Package Dimensions in mm (Inches)
1.5 ± 0.1
(0.06 ± 0.004)
Cathode indification
3.5 ± 0.2 (0.14 ± 0.008)
0.47 max.
(0.02)
Mounting Pad Layout
2.50 (0.098) max
Glass case
Mini Melf / SOD 80
JEDEC DO 213 AA
2 (0.079) min
1.25 (0.049) min
technical drawings
according to DIN
specifications
5 (0.197) ref
96 12070
Document Number 85557
Rev. 1.7, 06-Feb-04
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3
LL4148 / LL4448
VISHAY
Vishay Semiconductors
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and
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
www.vishay.com
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Document Number 85557
Rev. 1.7, 06-Feb-04