SF31G - SF38G
3.0AMPS. Glass Passivated Super Fast Rectifiers
DO-201AD
Features
High efficiency, low VF
High current capability
High reliability
High surge current capability
Low power loss
For use in low voltage, high frequency inverter,
Free wheeling, and polarity protection application
Green compound with suffix "G" on packing
code & prefix "G" on datecode
Mechanical Data
Case: Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Pure tin plated, lead free, solderable
per MIL-STD-202, Method 208 guaranteed
Polarity: As marked
High temperature soldering:
260℃/10 seconds
Mounting position: Any
Weight: 1.1 grams
Ordering Information (example)
Part No.
SF31G
Package
DO-201AD
Packing
500 / AMMO box
INNER
TAPE
52mm
Packing code
A0
Packing code
(Green)
A0G
Maximum Ratings and Electrical Characteristics
Rating at 25
℃
ambient temperature unless otherwise specified.
Parameter
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
Peak Forward Surge Current, 8.3 ms Single Half Sine-wave
Superimposed on Rated Load (JEDEC method)
Maximum Instantaneous Forward Voltage (Note 1)
@3A
Maximum DC Reverse Current at Rated
DC Blocking Voltage
Typical Junction Capacitance (Note 3)
Typical Thermal Resistance
Operating Temperature Range
Storage Temperature Range
Note 1: Pulse Test with PW=300 usec, 1% Duty Cycle
T
A
=25
℃
T
A
=125
℃
Symbol
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
Trr
Cj
R
θjA
R
θjL
R
θjC
T
J
T
STG
SF
31G
50
35
50
SF
32G
100
70
100
SF
33G
150
105
150
SF
34G
200
140
200
3
SF
35G
300
210
300
SF
36G
400
280
400
SF
37G
500
350
500
SF
38G
600
420
600
Unit
V
V
V
A
A
125
0.95
5
100
35
80
35
10
9
- 65 to + 150
- 65 to + 150
60
O
1.3
1.7
V
uA
nS
pF
C/W
O
O
Maximum Reverse Recovery Time (Note 2)
C
C
Note 2: Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
Note 3: Measured at 1 MHz and Applied Reverse Voltage of 4.0V D.C.
Version:F13
RATINGS AND CHARACTERISTIC CURVES (SF31G THRU SF38G)
FIG.1 FORWARD CURRENT DERATING CURVE
4
INSTANTANEOUS REVERSE CURRENT (uA)
100
FIG. 2 TYPICAL REVERSE CHARACTERISTICS
1000
AVERAGE FORWARD
A
CURRENT (A)
3
TA=125℃
2
10
1
RESISTIVE OR
INDUCTIVE LOAD
1
TA=75℃
0
0
25
50
75
100
125
150
175
LEAD TEMPERATURE (
o
C)
0.1
TA=25℃
FIG. 3 MAXIMUM NON-REPETITIVE FORWARD SURGE
CURRENT
PEAK FORWARD SURGE CURRENT
(A)
175
150
125
100
75
50
25
0
1
0.01
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
8.3mS Single Half Sine Wave
JEDEC Method
FIG. 4 TYPICAL FORWARD CHARACTERISTICS
100
TA=25℃
NUMBER OF CYCLES AT 60 Hz
INSTANTANEOUS FORWARD CURRENT (A)
10
100
TA=25℃
Pulse Width=300us
1% Duty Cycle
10
SF31G-SF34G
FIG. 5 TYPICAL JUNCTION CAPACITANCE
140
120
CAPACITANCE (pF)
100
80
60
40
20
0
0.1
1
10
100
REVERSE VOLTAGE (V)
SF31G-SF34G
1
SF35G-SF36G
SF35G-SF38G
TA=25℃
SF37G-SF38G
0.1
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
FORWARD VOLTAGE (V)
Version:F13
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