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SF31 THRU SF38
50V-600V
Soft Recovery Ultrafast Plastic Rectifier
3.0A
FEATURES
* Low forward voltage drop
* High current capability
* High reliability
* High surge current capability
* Good for switching mode application
Mechanical Data
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any
* Weight: 1.10 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
TYPE NUMBER
SF31 SF32 SF33 SF34 SF35 SF36 SF37 SF38
50
35
50
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
100
70
100
150
105
150
200
140
200
.375"(9.5mm) Lead Length at Ta=55 C
Peak Forward Surge Current, 8.3 ms single half sine-wave
300
210
300
400
280
400
500
350
500
600
420
600
125
1.25
0.95
1.70
5.0
50
at Rated DC Blocking Voltage
Ta=100 C
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range TJ, TSTG
50
35
-65
V
V
V
A
3.0
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 3.0A
Maximum DC Reverse Current
Ta=25 C
UNITS
50
+150
A
V
mA
mA
nS
pF
C
NOTES:
1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A
2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
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Web Site: www.taychipst.com
SF31 THRU SF38
50V-600V
Soft Recovery Ultrafast Plastic Rectifier
RATING AND CHARACTERISTIC CURVES
(SF31 THRU SF38)
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
FIG.1- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
trr
10W
NONINDUCTIVE
( )
D.U.T.
25Vdc
(approx.)
|
|
|
|
|
|
|
|
+0.5A
(+)
PULSE
GENERATOR
(NOTE 2)
( )
AVERAGE FORWARD CURRENT,(A)
50W
NONINDUCTIVE
0
-0.25A
(+)
1W
NONINDUCTIVE
OSCILLISCOPE
(NOTE 1)
-1.0A
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
1cm
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
3.0
2.5
2.0
Single Phase
1.5
Half Wave 60Hz
Resistive Or Inductive Load
1.0
0.375"(9.5mm) Lead Length
0.5
0
SET TIME BASE FOR
0
25
50
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
CHARACTERISTICS
50
10
10
REVERSE LEAKAGE CURRENT, (mA)
50
~S
F3
6
SF
3 1~
SF
34
SF
37
SF
35
INSTANTANEOUS FORWARD CURRENT,(A)
FIG.3-TYPICAL FORWARD
3.0
Tj=25 C
Pulse Width 300us
1% Duty Cycle
0.1
.01
.4
.6
.8
1.0
1.2
1.4
1.6
100
125
150
175
3.0
1.0
Tj=100 C
Tj=25 C
0.1
.01
1.8
0
20
40
60
80
100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
FORWARD VOLTAGE,(V)
FIG.6-TYPICAL JUNCTION CAPACITANCE
FIG.5-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
175
125
JUNCTION CAPACITANCE,(pF)
PEAK FORWARD SURGE CURRENT,(A)
75
AMBIENT TEMPERATURE,( C)
50 / 10ns / cm
1.0
3.0A
100
75
Tj=25 C
8.3ms Single Half
Sine Wave
50
JEDEC method
25
150
125
100
75
50
25
0
0
1
5
10
50
100
NUMBER OF CYCLES AT 60Hz
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.01
.05
.1
.5
1
5
10
50
100
REVERSE VOLTAGE,(V)
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