Document
SR2020PT THRU SR2060PT
20.0 AMPS. Schottky Barrier Rectifiers
Voltage Range 20 to 60 Volts Current 20.0 Amperes TO-3P/TO-247AD
Features
a a a a a a a a a a Dual rectifier construction, positive center-tap Plastic package has Underwriters Laboratory Flammability Classifications 94V-0 Metal silicon junction, majority carrier conduction Low power loss, high efficiency High current capability, low VF High surge capability Epitaxial construction For use in low voltage, high frequency inverters, free wheeling, and polarity protection applications Guardring for transient protection High temperature soldering guaranteed: 260oC/10seconds,0.17”(4.3mm)lead lengths at 5 lbs., (2.3kg) tension
Mechanical Data
a a a a Cases: JEDEC TO-3P/TO-247AD molded plastic Terminals: Leads solderable per MIL-STD-750, Method 2026 Polarity: As marked Mounting position: Any
a Weight: 0.2 ounce, 5.6 grams Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics
Rating at 25+ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% SR Symbol Type Number 2020PT Maximum Recurrent Peak Reverse Voltage VRRM 20 Maximum RMS Voltage VRMS 14 Maximum DC Blocking Voltage VDC 20 Maximum Average Forward Rectified I(AV) Current at Tc=105+ Peak Forward Surge Current, 8.3 ms Single IFSM Half Sine-wave Superimposed on Rated Load (JEDEC method )
Maximum Instantaneous Forward Voltage @10.0A (Note 3) Maximum D.C. Reverse Current @ Tc=25+ at Rated DC Blocking Voltage @ Tc=100+ Typical Thermal Resistance Per Leg (Note 1)
600 400 TJ -65 to +125 -65 to +150 Storage Temperature Range TSTG -65 to +150 Notes: 1. Thermal Resistance from Junction to Case Per Leg. 2. Measured at 1 MHz and Applied Reverse Voltage of 4.0V D.C. 3. 300 us Pulse Width, 2% Duty Cycle
Typical Junction Capacitance (Note 2) Operating Junction Temperature Range
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w
w
.D
t a
R
S a
JC
e h
t e
U 4
50 35 50 20 250
.c
m o
SR 2030PT
SR 2040PT
SR 2050PT
SR 2060PT
Units
V V V A
30 21 30
40 28 40
60 42 60
VF IR Cj
0.55 1.0 50 1.5
0.70
- 92 -
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w
w
.D
a
S a t
e e h
U 4 t
m o .c
A V
mA mA +/W pF + +
REV.1 Oct.-2003
RATINGS AND CHARACTERISTIC CURVES (SR2020PT THRU SR2060PT)
FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE
20.0
FIG.2- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PER LEG
300
PEAK FORWARD SURGE CURRENT. (A)
0PT -206 50PT SR20
AVERAGE FORWARD CURRENT. (A)
16.0
250
8.3ms Single Half Sine Wave PER LEG. (JEDEC Method) Tj=Tj max.
SR20 20PT-2
200 150
12.0
040PT
8.0
100
4.0
50
0
0
50
o
100
150
1
2
5
10
20
50
100
CASE TEMPERATURE. ( C)
NUMBER OF CYCLES AT 60Hz
FIG.3- TYPICAL REVERSE CHARACTERISTICS PER LEG
100
FIG.4- TYPICAL FORWARD CHARACTERISTICS
100
INSTANTANEOUS REVERSE CURRENT MILLIAMPERES
10
Tj=100 0C
INSTANTANEOUS FORWARD CURRENT. (A)
SR2020PT THRU SR2040PT
10
1.0
Tj=75 0C
SR2050PT THRU SR2060PT
1.0
.10 Tj=25 0C
Tj=25oC Pulse Width=3.