BL
FEATURES
GALAXY ELECTRICAL
SB020 --- SB040
VOLTAGE RANGE: 20 --- 40 V
CURRENT: 0.6 A
SCHOTTKY BARRIER RECTIFIER
Metal-Semiconductor junction with guard ring
Epitaxial construction
Low forward voltage drop,low switching losses
High surge capability
For use in low voltage,high frequency inverters free
xxxx
wheeling,and polarity protection applications
The plastic material carries U/L recognition 94V-0
R-1
MECHANICAL DATA
Case:JEDEC
R--1,molded
plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Polarity: Color band denotes cathode
Weight: 0.007 ounces,0.20 grams
Mounting position: Any
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%.
SB020
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
9.5mm lead length,
@T
A
=75
SB030
30
21
30
0.6
SB040
40
28
40
UNITS
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
20
14
20
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
@T
J
=125
I
FSM
20.0
A
Maximum instantaneous forw ard voltage
@ 0.6 A (Note 1)
Maximum reverse current
@T
A
=25
V
F
I
R
C
J
R
θ
JA
T
J
T
STG
0.55
0.5
10.0
60
20
- 55 ---- + 125
- 55 ---- + 150
V
mA
pF
／Ｗ
at rated DC blocking voltage @T
A
=100
Typical junction capacitance
Typical thermal resistance
(Note2)
(Note3)
Operating junction temperature range
Storage temperature range
NOTE: 1. Pulse test : 300 s pulse width,1% duty cy cle.
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2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC.
3.Thermal resistance junction to ambient
Document Number 0266003
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
FIG.1 -- FORWARD CURRENT DERATING CURVE
PEAK FORWARD SURGE CURRENT
AMPERES
AVERAGE FORWARD CURRENT
AMPERES
SB020 --- SB040
FIG.2 --MAXIMUM NON-REPETITIVE
PEAK FORWARD SURGE CURRENT
0.8
30
25
20
25
10
5
0
1
10
100
0.6
Resistive or
Inductive Load
0.375"(9.5mm)
Lead Length
T
J
=T
J
MAX
8.3ms Single Half
Sine-Wave
0.4
0.2
0
0
20
40
60
80
100
120
140
AMBIENT TEMPERATURE,
NUMBER OF CYCLES AT 60Hz
FIG.4--TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE LEAKAGE
CURRENT, MILLIAMPERES
100
FIG.3 --TYPICAL INSTANTANEOUS
INSTANTANEOUS FORWARD CURRENT
FORWARD CHARACTERISTICS
50
10
T
J
=125℃
10
TJ=125℃
1
AMPERES
1
Pulse width=300
1% Duty Cycle
s
T
J
=25℃
0.1
TJ=75℃
0.1
0.01
TJ=25
0.01
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0.001
0
20
40
60
80
100
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
400
100
T
J
=25℃
f=1.0MHz
Vsig=50mVp-p
100
10
1
10
0.1
1
10
100
0.1
0.01
0.1
1
10
100
REVERSE VOLTAGE,VOLTS
PULSE DURATION,Sec.
www.galaxycn.com
Document Number 0266003
BL
GALAXY ELECTRICAL
2
.
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