Surface Mount Schottky Rectifier
Reverse Voltage
40-50V
Forward Current
3A
LS34AS thru LS345AS
Features
• Low forward voltage drop
• Low
leakage current
• Moisture sensitivity: level 1, per J-STD-020
• Solder dip 260 °C, 10 s
• Low profile, typical thickness 1.0mm
Package: eSGB(SMAF)
Applications
For use in low voltage, high freqency inverters, free wheeling and polarity
protection applications.
Maximum Ratings
Parameter
(T
A
= 25°C unless otherwise noted)
Symbol
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
T
J
, T
STG
LS34AS
40
28
40
3.0
60
- 55 to + 150
LS345AS
45
31.5
45
Unit
V
V
V
A
A
°C
Maximum
Repetitive Peak Reverse Voltage
Maximum RMS
Voltage
Maximum DC
Blocking Voltage
Maximum
Average Forward Rectified Current
at
T
L
(Fig.1)
Peak
Forward Surge Current (8.3
ms single half
sine-wave superimposed on rated load)
Operating
Junction
and
Storage
Temperature Range
Electrical Characteristics
P
Parameter
t
Maximum Instantaneous
Forward Voltage
Maximum DC
Reverse Current
at
Rated
DC
Blocking Voltage
Typical
Junction Capacitance
Typical
Thermal Resistance
1)
(T
A
= 25°C unless otherwise noted)
Test C diti
T t Conditions
I
F
=3A
T
A
=25°C
4.0 V, 1 MHz
Junction
to case
Junction
to lead
S b l
Symbol
V
F
I
R
C
J
R
θJC
R
θJL
LS34AS
0.45
1
180
50
35
LS345AS
U i
Unit
V
mA
pF
°C/W
Note1:Thermal resistance from junction to case and lead,mounted on PCB with 8.0×8.0mm copper pads
1/3
Surface Mount Schottky Rectifier
Reverse Voltage
40-50V
Forward Current
3A
LS34AS thru LS345AS
unlessotherwise noted)
Ratings and Characteristics Curves
(T
A
= 25°C
Figure 1.Forward Current Derating Curve
Figure 2.Maximum Non‐Repetitive Peak
Forward Surge Current
Figure 3. Typical Reverse Characteristics
Figure 4. Typical Junction Capacitance
Figure 5. Typical Instantaneous Forward Characteristics
2/3
Surface Mount Schottky Rectifier
Reverse Voltage
40-50V
Forward Current
3A
LS34AS thru LS345AS
Package Outline Dimensions
eSGB (SMAF)
DIM
A
A1
B
C
D
E
L
HE
Unit: mm
MIN
0.92
0
1.25
0.1
2.6
4.1
0.7
4.8
MAX
MAX
1.08
0.1
1.45
0.25
2.8
4.3
1.1
5.2
Unit: inch
MIN
0.036
0.000
0.049
0.004
0.102
0.161
0.028
0.189
MAX
0.043
0.004
0.057
0.010
0.110
0.169
0.043
0.205
Soldering footprint
Packing Information
Packing quantities
10,000
pcs/Reel，12mm Tape, 13"
Reel
Tape & Reel Specification
www.goodarksemi.com
3/3
Doc.USLS34AS-LS345ASx2.1
PCB设计
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