BL
FEATURES
GALAXY ELECTRICAL
SR820 --- SR8A0
VOLTAGE RANGE: 20 --- 100 V
CURRENT: 8.0A
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
TO - 220AC
MECHANICAL DATA
Case:JEDEC TO--220AC,molded plastic
Terminals: Leads solderable per
MIL- STD-750,Method 2026
Polarity: As marked
Weight: 0.078ounces,2.24 grams
Mounting position: Any
½½
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%.
SR820 SR830 SR840
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
(see fig.1)
Peak forw ard surge current
8.3ms single half -sine-w ave
superimposed on rated load
@T
J
=125
SR850
50
35
50
8.0
SR860
60
42
60
SR880 SR8A0 UNITS
80
56
80
100
70
100
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
20
14
20
30
21
30
40
28
40
I
FSM
150.0
A
Maximum instantaneous forw ard voltage
@ 8.0A (Note 1)
Maximum reverse current
at rated DC blocking voltage
Typical thermal resistance
@T
A
=25
@T
A
=100
(Note2)
V
F
I
R
R
θ
JA
T
J
T
STG
0.65
1.0
15.0
3
-
55
---- + 125
0.75
0.8
0.85
V
50.0
mA
/W
Operating junction temperature range
Storage temperature range
NOTE: 1. Pulse test:300us pulse width,1% duty cy cle.
2.Thermal resistance junction to ambient
-
55
---- + 150
-
55
---- +150
www.galaxycn.com
Document Number 0266012
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
SR820 --- SR8A0
FIG.1 -- FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD RECTIFIED CURRENT
FIG.2 -- PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT
150
10
8.0
145
T
J
=T
J
MAX
8.3ms Single Half
Sine-Wave
AMPERES
AMPERES
SR820 - SR840
6.0
140
SR850 - SR8A0
4.0
2.0
0
0
50
100
150
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
135
130
125
1.0
5.0
10
50
100
LEAD TEMPERATURE,
NUMBER OF CYCLES AT 60HZ
FIG.3 -- TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT
50
SR820 - SR840
SR850 - SR860
SR8A0
10
SR880
AMPERES
1.0
T
J
=25℃
Pulse width=300
1% Duty Cycle
s
0.1
0.4
0.5
0.6
0.7
0.8
0.9 1.0
1.1
1.2
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
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Document Number 0266012
BL
GALAXY ELECTRICAL
2.
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