SR3020PT THRU SR3060PT
30.0 AMPS. Schottky Barrier Rectifiers
Voltage Range
20 to 60 Volts
Current
30.0 Amperes
TO-3P/TO-247AD
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 High temperature soldering guaranteed:
260oC/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
aWeight: 0.2 ounce, 5.6 grams
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number Symbol SR SR SR SR SR Units
3020PT 3030PT 3040PT 3050PT 3060PT
Maximum Recurrent Peak Reverse Voltage VRRM 20 30 40 50 60 V
Maximum RMS Voltage VRMS 14 21 28 35 42 V
Maximum DC Blocking Voltage VDC 20 30 40 50 60 V
Maximum Average Forward Rectified Current
at Tc=100 I(AV) 30 A
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated Load IFSM 275 A
(JEDEC method )
Maximum Instantaneous Forward Voltage @ 15.0A VF 0.55 0.70 V
(Note 3)
Maximum D.C. Reverse Current @ Tc=25 1.0 mA
at Rated DC Blocking Voltage @ Tc=100 IR 75 mA
Typical Thermal Resistance Per Leg (Note 1) RJC 1.5 /W
Typical Junction Capacitance (Note 2) Cj 750 500 pF
Operating Junction Temperature Range 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
- 102 - REV.1 Oct.-2003
RATINGS AND CHARACTERISTIC CURVES (SR3020PT THRU SR3060PT)
FIG.1- FORWARD CURRENT DERATING CURVE FIG.2- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT PER LEG
30 300
PEAK FORWARD SURGE CURRENT. (A)
SR3
AVERAGE FORWARD CURRENT. (A)
24 250
050P
SR30
T-30
200
20PT-3
18
60PT
040PT
150
12
100
6
50
0 0
0 50 100 150 1 2 5 10 20 50 100
o
CASE TEMPERATURE. ( C) NUMBER OF CYCLES AT 60Hz
FIG.3- TYPICAL REVERSE CHARACTERISTICS FIG.4- TYPICAL FORWARD CHARACTERISTICS
PER LEG PER LEG
100 100
SR3020PT
SR3040PT
INSTANTANEOUS FORWARD CURRENT. (A)
INSTANTANEOUS REVERSE CURRENT
Tj=100 0C
10
10
MILLIAMPERES
SR3050PT
1.0 Tj=75 0C SR3060CT
1.0
.10
Tj=25 0C
Tj=25oC
Pulse Width=300 s
2% Duty Cycle
0.01 0.1
0 20 40 60 80 100 120 140 .2 .3 .4 .5 .6 .7 .8 .9
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
INSTANTANEODS FORWARD VOLTAGE. (V)
FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG
4000
2000
Tj=25 0C
JUNCTION CAPACITANCE.(pF)
f=1.0MHz
Vsig=50mVp-p
SR
302
0PT
1000 -30
40P
800 T
600 SR3
050
PT-
400 306
0PT
200
100
.1 .4 1.0 4 10 40 100
REVERSE VOLTAGE. (V)
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