- 92 -
SR2020PT THRU SR2060PT
20.0 AMPS. Schottky Barrier Rectifiers
Voltage Range
20 to 60 Volts
Current
20.0 Amperes
Features
a
Dual
rectifier
construction,
positive
center-tap
a
Plastic package has Underwriters Laboratory Flammability
Classifications 94V-0
a
Metal silicon junction, majority carrier conduction
a
Low
power
loss,
high
efficiency
a
High current capability, low VF
a
High
surge
capability
a
Epitaxial
construction
a
For use in low voltage, high frequency inverters, free
wheeling, and polarity protection applications
a
Guardring
for
transient
protection
a
High temperature soldering guaranteed:
250C/10seconds,0.17"(4.3mm)lead lengths at 5 lbs., (2.3kg)
tension
Mechanical Data
a
Cases:
JEDEC
TO-3P/TO-247AD
molded
plastic
a
Terminals: Leads solderable per MIL-STD-750, Method 2026
a
Polarity:
As
marked
a
Mounting
position:
Any
a
Weight: 0.2 ounce, 5.6 grams
TO-3P/TO-247AD
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
SR2020PT SR2030PT SR20
40
PT SR2050PT SR2060PT
Units
Maximum Recurrent Peak Reverse Voltage
20
30
40
50
60
V
Maximum RMS Voltage
14
21
28
35
42
V
Maximum DC Blocking Voltage
20
30
40
50
60
V
Maximum Average Forward Rectified Current
at Tc=105C
20
A
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated Load
(JEDEC method )
250
A
Maximum Instantaneous Forward Voltage @10.0A
(Note 3)
0.550
0.700
V
Maximum D.C. Reverse Current @ Tc=25C
at Rated DC Blocking Voltage @ Tc=100C
1.0
50
mA
mA
Typical Thermal Resistance Per Leg (Note 1)
1.5
C/W
Typical Junction Capacitance (Note 2)
600
400
pF
Operating Junction Temperature Range T
J
-65 to +125
-65 to +150
C
Storage Temperature Range T
STG
-65 to +150
C
Notes:
1
.
Thermal Resistance from Junction to Case Per Leg.
Notes:
2. Measured at 1 MHz and Applied Reverse Voltage of 4.0V D.C.
Notes:
3. 300 us Pulse Width, 2% Duty Cycle
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RATINGS AND CHARACTERISTIC CURVES (SR2020PT THRU SR2060PT)
FIG.2- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT PER LEG
PEAK
FOR
W
ARD
SURGE
CURRENT
.
(A)
1
2
5
10
20
100
50
100
50
200
150
250
300
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine Wave
PER LEG. (JEDEC Method)
Tj=Tj max.
FIG.4- TYPICAL FORWARD CHARACTERISTICS
INST
ANT
ANEOUS
FOR
W
ARD
CURRENT
.
(A)
.2
.3
.4
.5
.6
.7
.8
.9
0.1
1.0
10
100
INSTANTANEOUS FORWARD VOLTAGE. (V)
Tj=25 C
Pulse Width=300 s
2% Duty Cycle
o
SR2050PT THRU
SR2060PT
SR2020PT THRU
SR2040PT
FIG.3- TYPICAL REVERSE CHARACTERISTICS
PER LEG
INST
ANT
ANEOUS
REVERSE
CURRENT
MILLIAMPERES
0
20
40
60
80
100
120
140
.01
.10
1.0
10
100
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
Tj=100 C
0
Tj=25 C
0
Tj=75 C
0
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
A
VERAGE
FOR
W
ARD
CURRENT
.
(A)
0
50
100
150
0
4.0
8.0
12.0
16.0
20.0
CASE TEMPERATURE. ( C)
o
SR2050PT-2060PT
SR2020PT-2040PT
FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG
CAP
ACIT
ANCE.(pF)
.1
.4
1.0
4
10
40
100
100
200
400
600
1000
800
2000
4000
REVERSE VOLTAGE. (V)
Tj=25 C
f=1.0MHz
Vsig=50mVp-p
0
SR2050PT-2060PT
SR2020PT-2040PT
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