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SUPER FAST RECOVERY RECTIFIER
SF31 THRU SF38
FEATURES
* * * * *
VOLTAGE RANGE CURRENT
50 to 600 Volts 3.0Ampere
DO-27
.052(1.3) .048(1.2) 1.0(25.4) MIN. DIA.
Low coat construction Fast switching for high efficency. Low reverse leakage High forward surge current capability High temperature soldering guaranteed: 260/10 secods/.375"(9.5mm)lead length at 5 lbs(2.3kg) tension
.375(9.5) .335(8.5) .220(5.6) .197(5.0) 1.0(25.4) MIN. DIA.
MECHANICAL DATA
* * * * * *
Case: Transfer molded plastic Epoxy: UL94V-O rate flame retardant Polarity: Color band denotes cathode end Lead: Plated axial lead, solderable per MIL-STD-202E method 208C Mounting position: Any Weight: 0.042ounce, 1.19grams
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
* * *
Ratings at 25OC ambient temperature unless otherwise specified Single Phase, half wave, 60Hz, resistive or inductive load For capacitive load derate current by 20%
SYMBOLS
Maximum Repetitive Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current 0.375"(9.5mm) lead length at T A= 55 Peak Forward Surge Current 8.3mS single half sine wave superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage @ 3.0A Maximum DC Reverse Current at Rated DC Blocking Voltage TA = 25 TA = 125
VRRM VRMS VDC I(AV) IFSM VF IR trr CJ RJA TJ TSTG
SF 31 50 35 50
SF 32 100 70 100
SF 33 150 105 150
SF 34 200 140 200 5.0 125
SF 35 300 210 300
SF 36 400 280 400
SF 37 500 350 500
SF UNITS 38 600 Volts 420 Volts 600 Volts Amp Amps
0.95 5.0 50 35 50
1.25
1.7
Volts A ns
Maximum Reverse Recovery Time Test conditions IF=0.5A,IR=1.0A,IRR=0.25A Typical Thermal Capavitance (Measured at 1.0MHz and applied rever voltage of 4.0V) Typical Thermal Resistance(NOTE 1) Operating Junction Temperature Range Storage Temperature Range
30 30 (-55 to +150) (-55 to +150)
PF /W
Notes: 1. Thermal resistance from junction to ambient with .375"(9.5mm)lead length, PCB. mounted. .
Web Site: WWW.PS-PFS.COM
SUPER FAST RECOVERY RECTIFIER
SF31 THRU SF38
VOLTAGE RANGE CURRENT
50 to 600 Volts 3.0Ampere
RATING AND CHRACTERISTIC CURVES SF31 THRU SF38
FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT
FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE
3.0
AVERAGE FORWARD CURRENT, (A)
150
PEAK FORWARD SURGE
8.3ms Single Half Sine-Wave (JEDEC Method) Tj=Tjmax
2.0
1.0
Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375"(9.5mm)Lead Length
CURRENT, (A)
100
50
1 Cycle
0 1 2
0 0 25 50 55 75 100 125 150 175
4
6
8
10
20
40
60
100
AMBIENT TEMPERATURE, ( C)
NUMBER OF CYCLES AT 60 Hz
FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
10
FIG.4-TYPICAL REVERSE CHARACTERISTICS
10
INSTANTANEOUS FORW ARD CURRENT,
1.0
INSTANTANEOUS REVERSE CURRENT, (UA)
4 31 -3
35 -3 6
7 -3
8
SF
1.0
SF
Tj =125 C
(A)
0.1
SF 3
0.1
0.01
Tj =25 C
Tj =25 C Pulse Width=300us 1% Duty Cycle
0.001 0.4
0.01 0 20 40 60 80 100 120 140
0.6
0.8
1.0
1.2
1.4
1.6
1.8
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG.5-TYPICAL JUNCTION CAPACITANCE
100
JUNCTION CAPACITANCE,(pF)
FIG.6-TEST CIRCUIT DIAGRAM AND REVERSE REXOVERY TIME CHARACTERISTIC
Trr
+0.5A 50 NONINDUCTIVE 10 NONINDUCTIVE
(-)
0 0.25A
10
(+) 25 Vdc approx (-)
D.U.T
PULSE GENERATIOR (NOTE 2)
1 NON INDUCTIVE
OSCILLOSCOPE (NOTE 1) -1.0A
1cm
TJ=25 C F=1MHz
V sig=50mVp-p
SF31-SF34 SF35-SF38
1.0 0.1 1.0 10 100
NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF 2.Rise time=10ns max.Source Impedance=50 ohms
SET TIME BASE FOR 50 /100NS /cm
REVERSE VOLTAGE,(V)
Web Site: WWW.PS-PFS.COM

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