BL
FEATURES
GALAXY ELECTRICAL
SR1520CT-SR1560CT
REVERSE VOLTAGE: 20 - 60 V
FORWARD CURRENT: 15 A
TO-220AB
DUAL SCHOTTKY RECTIFIERS
Metal-Semiconductor junction with guard ring
Epitaxial construction
For use in low voltage,high frequency inverters free
xxxx
wheeling,and polarity protection applications
Low forward voltage drop,low switching losses
High surge capability
The plastic material carries U/L recognition 94V-0
MECHANICAL DATA
Case:JEDEC TO--220AB,molded plastic
Terminals: Plated leads, solderable per MIL-STD-111
111
202, Method 208
Polarity: As marked
Weight: 0.08 ounce, 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%.
SR
1520CT
Maximum recurrent peak reverse voltage
Working peak reverse voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
h
@ T
A
=100
Peak forw ard surge current
8.3
ms single half
b
sine-w ave superimposed on rated load
v
(JEDEC Method) @T
A
=125
Maximum instantaneous forw ard voltage per leg
h
@ 7.5A (Note1)
Maximum reverse current
at rated DC blocking voltage
@T
A
=25
@T
A
=100
SR
1530CT
30
21
30
SR
1540CT
40
28
40
15.0
SR
1550CT
50
35
50
SR
1560CT
60
42
60
UNITS
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
20
14
20
I
FSM
200.0
A
V
F
0.65
1.0
0.75
V
I
R
T
J
T
STG
mA
50.0
-55 --- +150
-55 --- +150
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Operating junction temperature range
Storage temperature range
Note: 1. Pulse test:300us pulse width,1% duty cy cle.
Document Number 0267002
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
FIG.1 --FORWARD CURRENT DERATING CURVE
INSTANTANEOUS REVERSE CURRENT
MILLIAMPERES
AVERAGE FORWARD CURRENT
SR1520CT --- SR1560CT
FIG.2 -- TYPICAL REVERSE CHARACTERISTICS
PER LEG
10
SR1520CT-SR1540CT
SR1550CT-SR1560CT
18
15
T
J
=125℃
1
AMPERES
12
9
6
3
0
Resistive or inductive load
.1
T
J
=75℃
.01
T
J
=25℃
0
50
100
150
.001
0
20
40
60
80
100
CASE TEMPERATURE,
FIG.3 -- TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS PER LEG
INSTANTANEOUS FORWARD CURRENT,
PERCENT OF RATED PEAK REVERSE VOLTAGE, %
FIG.4 -- PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT
AMPERES
50
200
175
150
125
100
75
50
25
0
1
2
5
10
20
50
100
10
T
J
=125
Pulse width = 300
µ
s
1% Duty Cycle
T
J
=T
J
MAX.
8.3ms Single Half Sine-Wave
(JEDEC Method)
T
J
=25
AMPERES
1
.1
SR1520CT-SR1540CT
SR1550CT-SR1560CT
.01
0
.1
.2 .3
.4
.5
.7 .8
1.0
1.2
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
FIG.5 -- TYPICAL JUNCTION CAPACITANCE
/W
NUMBER OF CYCLE AT 60Hz
FIG.6 -- TYPICAL TRANSIENT THERMAL IMPEDANCE
100
JUNCTION CAPACITANCE, pF
4000
T
J
=25
TRANSIENT THERMAL IMPEDANCE,
10
1000
1
SR1520CT-SR1540CT
SR1550CT-SR1560CT
100
0.1
0.1
1
10
100
0.01
0.1
1
10
100
REVERSE VOLTAGE, VOLTS
PULSE DURATION, Sec
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Document Number 0267002
BL
GALAXY ELECTRICAL
2.
