LUGUANG SR2050CT

SR2020CT-SR2060CT
Dual Schottky Rectifiers
REVERSE VOLTAGE: 20 - 60 V
FORWARD CURRENT: 20 A
TO-220AB
2.8± 0.1
Features
Metal-Semiconductor junction with guard ring
4.5± 0.2
10.2± 0.2
1.4± 0.2
Epitaxial construction
Low forward voltage drop,low switching losses
1
8.9± 0.2
For use in low voltage,high frequency inverters free
wheeling,and polarity protection applications
19.0± 0.5
xxxx
φ 3.8± 0.15
PIN
2 3
3.5± 0.3
13.8± 0.5
2.6± 0.2
High surge capability
The plastic material carries U/L recognition 94V-0
0.9± 0.1
Mechanical Data
0.5± 0.1
2.5± 0.1
PIN 1
Case:JEDEC TO--220AB,molded plastic
PIN 3
Positive CT
CASE
PIN 2
Polarity: As marked
Weight: 0.08ounce, 2.24 grams
Dimensions in millimeters
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%.
SR
2020CT
SR
2030CT
SR
2040CT
SR
2050CT
SR
2060CT
UNITS
Maximum recurrent peak reverse voltage
VRRM
20
30
40
50
60
V
Working peak reverse voltage
VRMS
14
21
28
35
42
V
Maximum DC blocking voltage
VDC
20
30
40
50
60
V
Maximum average forw ard rectified current
v 9.5mm lead length,
@ TA=100
IF(AV)
20.0
A
Peak forw ard surge current 8.3 ms single half
v sine-w ave superimposed on rated load
v (JEDEC Method) @TJ=125
IFSM
150.0
A
Maximum instantaneous forw ard voltage per leg
@ 10A(Note1)
VF
Maximum reverse current
@TA=25
at rated DC blocking voltage @TA=100
Operating junction temperature range
Storage temperature range
0.65
0.75
V
1.0
IR
mA
50.0
TJ
-55 --- +150
TSTG
-55 --- +150
Note: 1. Pulse test:300us pulse width,1% duty cy cle.
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mail:[email protected]
SR2020CT-SR2060CT
Dual Schottky Rectifiers
Ratings AND Charactieristic Curves
FIG.2 -- TYPICAL REVERSE CHARACTERISTICS
PER LEG
INSTANTANEOUS REVERSE CURRENT
MILLIAMPERES
30
25
AMPERES
AVERAGE FORWARD CURRENT
FIG.1 --FORWARD CURRENT DERATING CURVE
20
Resistive or inductive load
15
10
5
0
0
50
100
150
CASE TEMPERATURE,
TJ=125℃
1
.1
TJ=75℃
.01
TJ=25℃
.001
0
1
.1
SR2020CT-SR2040CT
SR2050CT-SR2060CT
.01
0
.1 .2
.3
.4
.5 .6
.7
.8
.9 1.0 1.1 1.2
60
80
100
200
180
160
140
TJ=TJMAX.
8.3ms Single Half Sine-Wave
(JEDEC Method)
120
100
80
60
40
1
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
5
10
50
100
NUMBER OF CYCLE AT 60Hz
/W
FIG.5 -- TYPICAL JUNCTION CAPACITANCE
40
FIG.4 -- PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT
AMPERES
Pulse width = 300 µs
1% Duty Cycle
TJ =125
TJ =25
AMPERES
INSTANTANEOUS FORWARD CURRENT
10
20
PERCENT OF RATED PEAK REVERSE VOLTAGE, %
FIG.3 -- TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS PER LEG
50
SR2020CT-SR2040CT
SR2050CT-SR2060CT
10
FIG.6 -- TYPICAL TRANSIENT THERMAL IMPEDANCE
TJ=25
1000
SR2020CT-SR2040CT
SR2050CT-SR2060CT
100
0.1
1
10
REVERSE VOLTAGE, VOLTS
http://www.luguang.cn
100
TRANSIENT THERMAL IMPEDANCE,
JUNCTION CAPACITANCE, pF
100
4000
10
1
0.1
0.01
0.1
1
10
PULSE DURATION, Sec
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100