1
Dimensions in inches and (millimeters)
■ Features
■ Mechanical data
■ Maximum ratings and electrical characteristics
O
Rating at 25 C ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
■ Outline
Low profile surface mounted application in order to•
optimize board space.
Low power loss, high efficiency.•
High current capability, low forward voltage drop.•
Ultra high-speed switching.•
Silicon epitaxial planar chip, metal silicon junction.•
Suffix "G" indicates Halogen-free part, ex.B120LWG-ST.•
Lead-free parts meet environmental standards of •
MIL-STD-19500 /228
B120LW-ST THRU B140LW-ST
1A Surface Mount Schottky Barrier Rectifiers
I
O
I
FS M
I
R
C
J
T
ST G
Forward rectified current
Forward surge current
Reverse current
Thermal resistance
Storage temperature
Parameter
8.3ms single half sine-wave superimposed on
rate load (JEDEC method)
O
V = V T = 25 C
R RR M A
O
V = V T = 100 C
R RR M A
Conditions Symbol MIN. TYP. MAX. UNIT
-55 +150
130
20
1.0
1.0
30
A
A
mA
O
C/W
O
C
42
R
θ J A
Junction to ambient
Diode junction capacitance
pF
f=1MHz and applied 4V DC reverse voltage
Operating Junction
temperature
O
T ( C)
J
-55 ~ +100
Max. forward voltage
O
@1A, T = 25 C
A
V (V)
F
Max. DC
blocking voltage
V (V)
R
Max.
RMS voltage
V (V)
RM S
28
14
Max.
repetitive peak
reverse voltage
V (V)
RR M
40
20
Marking code
B140LW-ST
B120LW-ST
Symbol
L4
L2
40
20 0.38
0.40
Document ID : DS-12K4C
Revised Date : 2017/01/23
Revision : C1
SOD-123ST
0.055(1.4)
0.039(1.0)
0.154(3.9)
0.138(3.5)
0.079(2.0)
0.063(1.6)
0.031(0.8)
0.039(1.0)
0.039 (1.0)
0.024 (0.6)
0.081(2.05)
0.096(2.45)
0.035(0.9)
0.051(1.3)
0.041(1.05)
0.057(1.45)
0.031(0.8)
0.039(1.0)
0.008(0.20)Max.
0.016(0.4) Typ.
• Epoxy:UL94-V0 rated flame retardant
• Case : Molded plastic, SOD-123ST
• Terminals : Solder plated, solderable per
MIL-STD-750, Method 2026
• Polarity : Indicated by cathode band
• Weight : Approximated 0.0155 gram
2
■ Rating and characteristic curves
1A Surface Mount Schottky Barrier Rectifiers
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT,(A)
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWAARD SURGE CURRENT,(A)
FIG.5-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE,(V)
JUNCTION CAPACITANCE,(pF)
0.2
0.4
0.6
0.8
1.0
1.2
0
350
300
250
200
150
100
50
0
20
10
30
50
40
.01 .05 .1 .5 1 5 10 50 100
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
O
AMBIENT TEMPERATURE ( C)
FIG.3 - TYPICAL REVERSE
CHARACTERISTICS
NUMBER OF CYCLES AT 60Hz
1 10 5
50
100
O
T =25 C
J
8.3ms Single Half
Sine Wave
JEDEC method
0
0 20 40 60 80 100 120 140 160 180 200
0.1
1.0
.01
10
50
INSTANTANEOUS FORWARD CURRENT,(A)
FORWARD VOLTAGE,(V)
Pulse Width 300us
1% Duty Cycle
.1 .3 .5 .7 .9 1.1 1.3 1.5
3.0
B120LW
-ST
T =25 C
J
B140LW-ST
.1
1.0
10
100
REVERSE LEAKAGE CURRENT, (mA)
PERCENTAGE RATED PEAK REVERSE VOLTAGE
0 20 40 60 80 100 120 140
.01
O
T =100 C
J
O
T =25 C
J
B120LW-ST THRU B140LW-ST
Document ID : DS-12K4C
Revised Date : 2017/01/23
Revision : C1