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HUAGAO LIMITED
Qs9000
SR2020 THRU SR20100
SCHOTTKY BARRIER RECTIFIER
Reverse Voltage - 20 to 100 Volts
Forward Current - 20Amperes
FEATURES
ITO-220AB
Plastic package has Underwriters Laboratory Flammability Classification 94V-0
Metal silicon junction ,majority carrier conduction
Guard ring for overvoltage protection
Low power loss ,high efficiency
High current capability ,Low forward voltage drop
High surge capability
For use in low voltage ,high frequency inverters,
free wheeling ,and polarity protection applications
Dual rectifier construction
High temperature soldering guaranteed:250 C/10 seconds,
0.25"(6.35mm)from case
MECHANICAL DATA
Case: JEDEC ITO-220AB molded plastic body
Terminals: Lead solderable per MIL-STD-750,method 2026
Polarity: As marked, No suffix indicates Common Cathode,
suffix"A" indicates Common Anode
Mounting Position: Any
Weight: 0.08ounce, 2.24 grams
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
(Ratings at 25 C ambient temperature unless otherwise specified ,Single phase ,half wave ,resistive or inductive
load. For capacitive load, derate by 20%.)
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
at TC=105 C
Peak forward surge current 8.3ms single half
sine-wave superimposed on rated load
(JEDEC method)
Maximum instantaneous forward voltage
at 10 A(Note 1 )
Maximum instantaneous reverse
current at rated DC blocking
voltage(Note 1)
T A =25 C
TA =100 C
Typical thermal resistance (Note 2)
Symbols
VRRM
VRMS
VDC
I(AV)
IFSM
VF
IR
R JC
SR
2020
20
14
20
SR
2030
30
21
30
SR
2040
40
28
40
SR
2050
50
35
50
20.0
SR
2060
60
42
60
SR SR
2080 20100
80 100
56 70
80 100
0.70
30.0
300
0.80
0.85
1.0
50.0
5.0
Operating junction temperature range
Storage temperature range
TJ
TSTG
-65 to+150
-65 to+175
Units
Volts
Volts
Volts
Amps
Amps
Volts
mA
mA
C/W
C
C
Notes: 1.Pulse test: 300 s pulse width,1% duty cycle
2.Thermal resistance from junction to case

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RATINGS AND CHARACTERISTIC CURVES SR2020 THRU SR20100
FIG.1-FORWARD CURRENT DERATING CURVE
FIG.2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
INDUCTIVE OR
RESISTIVE LOAD
LEAD TEMPERATURE ( C)
FIG.3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
TJ=125 C
TJ=25 C
PULSE WIDTH=300 S
1% DUTY CYCLE
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
FIG.5-TYPICAL JUNCTION CAPACITANCE
TJ=25 C
f=1.0MHZ
Vsig=50mVp-p
TJ=TJMAX
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
NUMBER OF CYCLES AT 60Hz
FIG.4-TYPICAL REVERSE CHARACTERISTICS
TJ=125 C
TJ=75 C
TJ=25 C
PERCENT OF RATED PEAK REVERSE VOLTAGE%
FIG.6-TYPICAL TRANSIENT THERMAL IMPEDANCE
REVERSE VOLTAGE. VOLTS
T, PULSE DURATION ,sec.