SF31
THRU
SF38
3.0 Amp Super Fast
Rectifier
50 to 600 Volts
Features
High Surge Capability
Low Forward Voltage Drop
High Current Capability
High Reliability
Maximum Ratings
Operating Temperature: -55
C to +125
C
Storage Temperature: -55
C to +150
C
For capacitive load, derate current by 20%
MCC
Part Number
Maximum
Recurrent
Peak Reverse
Voltage
Maximum
RMS Voltage
Maximum DC
Blocking
Voltage
SF31 50V 35V 50V
SF32 100V 70V 100V
SF33 150V 105V 150V
SF34 200V 140V 200V
SF35 300V 210V 300V
SF36 400V 280V 400V
SF38 600V 420V 600V
Electrical Characteristics @ 25
C Unless Otherwise Specified
Average Forward
Current
I
F(AV)
3.0 A T
C
= 55
C
Peak Forward Surge
Current
I
FSM
100A 8.3ms, half sine
Maximum
Instantaneous
Forward Voltage
SF31-SF34
SF35-SF36
SF38
V
F
.95V
1.3V
1.7V
I
FM
= 3.0A;
T
C
= 25
C
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
I
R
5.0
A
100
A
T
C
= 25
C
T
C
= 100
C
Typical Junction
Capacitance
SF31-SF34
SF35-SF38
C
J
100pF
80pF
Measured at
1.0MHz, V
R
=4.0V
Maximum Reverse
Recovery Time T
rr
35ns
I
F
=0.5A, I
R
=1.0A,
I
rr
=0.25A
*Pulse Test: Pulse Width 300
sec, Duty Cycle 1%
DO-201AD
DIMENSIONS
INCHES
MM
DIM
MIN
MAX
MIN
MAX
NOTE
A --- .370 --- 9.50
B --- .250 --- 6.40
C .048 .052 1.20 1.30
D 1.000 --- 25.40 ---
A
B
C
D
D
Cathode
Mark
www.
mccsemi
.com
omponents
21201 Itasca Street Chatsworth
!"#
$
% !"#
M C C
Average Forward Rectified Current Per Leg - Amperes
versus
Case Temperature -
C
Figure 3
Forward Derating Curve
0
150
25
50
75
100
0
0.5
1.0
1.5
Single Phase, Half Wave
60Hz Resistive or Inductive Load
Amps
C
125
2.0
2.5
3.0
Instantaneous Reverse Current - uAmperes
versus
Percent of Rated Peak Reverse Voltage - %
Figure 1
Typical Reverse Characteristics
1000
uAmps
20
40
60
80
100
120
1
10
100
T
j
=100
C
Volts
Instantaneous Forward Current - Amperes
versus
Instantaneous Forward Voltage - Volts
Figure 2
Typical Forward Characteristics
10
Amps
0.6
0.8 1.0 1.2
1
.4
1
.6
0.01
0.1
1
Volts
T
j
=25
C
SF31-SF34
SF35-SF36
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.com
M C C
SF31 thru SF3
8
SF3
8
t
rr
+0.5A
0
-0.25
-1.0
1cm
Set Time Base for 20/100ns/cm
25Vdc
1
50
10
Oscilloscope
Note 1
Pulse
Generator
Note 2
Notes:
1. Rise Time = 7ns max.
Input impedance = 1 megohm, 22pF
2. Rise Time = 10ns max.
Source impedance = 50 ohms
3. Resistors are non-inductive
Figure 6
Reverse Recovery Time Characteristic And Test Circuit Diagram
Figure 4
Maximum Non-repetitive Forward Surge Current
PEAK
FOR
W
ARD
SURGE
CURRENT
.
(A)
1
2
5
10
20
100
50
20
0
40
100
80
60
120
140
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine Wave
JEDEC Method
Figure 5
JUNCTION
CAP
ACIT
ANCE.(pF)
.1
.5
1
5
2
10 20
50
100 200
500 1000
60
80
100
120
140
160
180
200
REVERSE VOLTAGE. (V)
SF31~SF34
SF35~SF3
8
Typical Junction Capacitance
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mccsemi
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M C C
SF31 thru SF3
8
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