SB320-SB370
Schottky Barrier Rectifier
VOLTAGE RANGE: 20 ---
70 V
CURRENT: 3.0 A
Features
Metal-Semiconductor junction with guard ring
Epitaxial construction
Low forward voltage drop,low switching losses
High surge capability
xxx
For use in low voltage,high frequency inverters free
x
wheeling,and polarity protection applications
The plastic material carries U/L recognition 94V-0
DO - 27
Mechanical Data
Case:JEDEC DO--27,molded plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Polarity: Color band denotes cathode
Weight: 0.041 ounces,1.15 grams
Mounting position: Any
Dimensions in millimeters
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
SB320 SB330
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
9.5mm lead length,
(see fig.1)
SB340 SB350 SB360 SB370 UNITS
40
28
40
3.0
50
35
50
60
42
60
70
49
70
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
20
14
20
30
21
30
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
@T
J
=125
I
FSM
80.0
A
Maximum instantaneous forw ard voltage
@ 3.0 A (Note 1)
Maximum reverse current
@T
A
=25
V
F
I
R
C
J
R
θ
JA
T
J
T
STG
0.5
0.5
20.0
40
40
-55 --- +125
-55 --- +150
0.74
V
at rated DC blocking voltage @T
A
=100
Typical junction capacitance
Typical thermal resistance
(Note2)
(Note3)
10.0
mA
pF
/W
Operating junction temperature range
Storage temperature range
-55 --- +150
NOTE: 1. Pulse test : 300 s pulse width,1% duty cy cle.
2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC.
3.Thermal resistance junction to ambient
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SB320-SB370
Schottky Barrier Rectifier
Ratings AND Charactieristic Curves
FIG.2 --MAXIMUM NON-REPETITIVE
FIG.1 -- FORWARD CURRENT DERATING CURVE
4.0
PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT
AVERAGE FORWARD RECTIFIED
CURRENT,AMPERES
3.0
Resistive or
Inductive Load
0.375"(9.5mm)
Lead Length
80
70
T
J
=T
J
MAX
8.3ms Single Half
Sine-Wave
AMPERES
60
50
40
30
20
10
1
10
100
2.0
SB320-SB340
1.0
SB350&SB370
0
0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE,
NUMBER OF CYCLES AT 60Hz
FIG.4--TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE LEAKAGE
100
FIG.3 --TYPICAL INSTANTANEOUS
INSTANTANEOUS FORWARD CURRENT
FORWARD CHARACTERISTICS
50
Pulse w idth= 300
1% D uty C ycle
s
CURRENT, MILLIAMPERES
T
J
=125℃
10
10
T
J
=125℃
AMPERES
T
J
=25℃
T
J
=75℃
1
1
0.01
T
J
=25
0.1
0.01
0
SB320-SB340
SB350&SB370
0.001
0
20
40
60
S B320-SB 340
S B350& S B 370
80
100
0.2 0.4 0.6 0.8 1.0 1.2 1.4
1.6
INSTANTANEOUS FORWARD VOLTAGE,VOLTS
PERCENT OF RATED PEAK REVERSE VOLTAGE,%
FIG.5--TYPICAL JUNCTION CAPACITANCE
TRANSIENT THERMAL IMPEDANCE , /W
JUNCTION CAPACITANCE,pF
FIG.6--TYPICAL TRANSIENT THERMAL IMPEDANCE
100
200
10
120
100
50
1
T
J
=25
f=1MHz
20
10
.1
0.1
0.01
0.1
1
10
100
.2
.4
1.0 2
4
10
20
40
100
REVERSE VOLTAGE,VOLTS
PULSE DURATION,Sec
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mail:lge@luguang.cn
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