SF31 THRU SF38
50V-600V
SUPER FAST RECTIFIERS
3.0A
VOLTAGE RANGE
50 to 600 Volts
CURRENT
FEATURES
* Low forward voltage drop
* High current capability
* High reliability
* High surge current capability
* Good for switching mode application
3.0 Amperes
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
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
.375"(9.5mm) Lead Length at Ta=55 C
Peak Forward Surge Current, 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 3.0A
Maximum DC Reverse Current
Ta=25 C
at Rated DC Blocking Voltage
Ta=100 C
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range T
J
, T
STG
NOTES:
SF31 SF32 SF33 SF34 SF35 SF36
50
35
50
100
70
100
150
105
150
200
140
200
300
210
300
3.0
125
0.95
5.0
50
35
50
-65 +150
1.25
400
280
400
SF37
500
350
500
SF38
600
420
600
UNITS
V
V
V
A
A
V
mA
mA
nS
pF
C
1.70
50
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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SF31 THRU SF38
50V-600V
SUPER FAST RECTIFIERS
3.0A
RATING AND CHARACTERISTIC CURVES (SF31 THRU SF38)
FIG.1- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50
W
NONINDUCTIVE
10
W
NONINDUCTIVE
trr
+0.5A
|
|
|
|
|
|
|
|
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
AVERAGE FORWARD CURRENT,(A)
3.0
2.5
2.0
1.5
1.0
0.5
0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
(+)
25Vdc
(approx.)
( )
1
W
NON-
INDUCTIVE
OSCILLISCOPE
(NOTE 1)
D.U.T.
( )
PULSE
GENERATOR
(NOTE 2)
(+)
0
-0.25A
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
-1.0A
1cm
SET TIME BASE FOR
50 / 10ns / cm
0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE,( C)
FIG.3-TYPICAL FORWARD
CHARACTERISTICS
50
INSTANTANEOUS FORWARD CURRENT,(A)
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
50
3.0
SF
3 1~
SF
34
REVERSE LEAKAGE CURRENT, (mA)
10
10
3.0
1.0
Tj=100 C
1.0
SF
35
~S
F3
6
SF
37
0.1
Tj=25 C
Pulse Width 300us
1% Duty Cycle
Tj=25 C
0.1
.01
.4
.6
.8
1.0
1.2
1.4
1.6
1.8
.01
0
20
40
60
80
100 120 140
FORWARD VOLT
AGE,(V)
PERCENT OF RATED PEAK REVERSE VOLT
AGE,(%)
FIG.5-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT,(A)
125
FIG.6-TYPICAL JUNCTION CAPACITANCE
175
150
125
100
75
50
25
0
100
75
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
50
25
0
1
5
10
50
100
JUNCTION CAPACITANCE,(pF)
.01
.05
.1
.5
1
5
10
50
100
NUMBER OF CYCLES AT 60Hz
REVERSE VOLTAGE,(V)
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