High efficiency, low VF
High current capability
High reliability
High surge current capability
Low power loss
SF3XG = Specific Device Code
G = Green Compound
Y = Year
WW = Work Week
Maximum Ratings and Electrical Characteristics
Rating at 25 ℃ ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Symbol SF
31G SF
32G SF
33G SF
34G SF
35G SF
36G SF
37G SF
38G Unit
V
RRM
50 100 150 200 300 400 500 600 V
V
RMS
35 70 105 140 210 280 350 420 V
V
DC
50 100 150 200 300 400 500 600 V
Trr nS
Cj pF
T
JO
C
T
STG O
C
Maximum Instantaneous Forward Voltage (Note 1)
@ 3 A V
F
0.95 1.3 1.7 V
Storage Temperature Range - 65 to + 150
100
Maximum Reverse Recovery Time (Note 2) 35
Maximum DC Reverse Current at Rated T
A
=25 ℃
DC Blocking Voltage T
A
=125 ℃I
R
Epoxy: UL 94V-0 rate flame retardant
uA
Typical Thermal Resistance (Note 4)
Polarity: As marked
Maximum Average Forward Rectified Current
.375 (9.5mm) Lead Length @T
A
= 50℃3
Peak Forward Surge Current, 8.3 ms Single Half Sine-
wave Superimposed on Rated Load (JEDEC method) I
FSM
125
35
10
9
Typical Junction Capacitance (Note 3) 80 60
Note 3: Measured at 1 MHz and Applied Reverse Voltage of 4.0V D.C.
R
θjA
R
θjL
R
θjC
Note 4: Mount on Heatsink size of 2" x 3" x 0.25"
Note 2: Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
Operating Temperature Range
O
C/W
Note 1: Pulse Test with PW=300 usec, 1% Duty Cycle
SF31G - SF38G
3.0AMPS. Glass Passivated Super Fast Rectifiers
Marking Diagram
DO-201AD
Version:D10
- 65 to + 150
Dimensions in inches and (millimeters)
A
Weight: 1.1 grams
Ty pe Num ber
Maximum RMS Voltage
Maximum DC Blocking Voltage
A
I
F(AV)
5
Features
Maximum Repetitive Peak Reverse Voltage
Mounting position: Any
Mechanical Data
For use in low voltage, high frequency inventor,
Free wheeling, and polarity protection application
Green compound with suffix "G" on packing
code & prefix "G" on datecode
Lead: Pure tin plated, lead free, solderable
per MIL-STD-202, Method 208 guaranteed
High temperature soldering:
260℃/10 seconds/.375",(9.5mm) lead
lengths at 5 lbs., (2.3kg) tension
Case: Molded plastic
Pb
RoHS
COMPLIANCE
RoHS
COMPLIANCE
Version:D10
RATINGS AND CHARACTERISTIC CURVES (SF31G THRU SF38G)
0
1
2
3
4
0 255075100125150175
AVERAGE FORWARD A
CURRENT (A)
LEAD TEMPERATURE (oC)
FIG.1 FORWARD CURRENT DERATING CURVE
RESISTIVE OR
INDUCTIVE LOAD
0
25
50
75
100
125
150
175
1 10 100
PEAK FORWARD SURGE ACURRENT
(A)
NUMBER OF CYCLES AT 60 Hz
FIG. 3 MAXIMUM NON-REPETITIVE FORWARD SURGE
CURRENT
8.3mS Single Half Sine Wave
JEDEC Method
0.01
0.1
1
10
100
1000
0 20 40 60 80 100 120 140
INSTANTANEOUS REVERSE A
CURRENT (uA)
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
FIG. 2 TYPICAL REVERSE CHARACTERISTICS
TA=25℃
TA=125℃
TA=75℃
0
20
40
60
80
100
120
140
0.1 1 10 100 1000
CAPACITANCE (pF)
REVERSE VOLTAGE (V)
FIG. 5 TYPICAL JUNCTION CAPACITANCE
SF35G-SF38G
SF31G-SF34G
0.01
0.1
1
10
100
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
INSTANTANEOUS FORWARD A
CURRENT (A)
FORWARD VOLTAGE (V)
FIG. 4 TYPICAL FORWARD CHARACTERISRICS
SF37G-SF38G
TA=25℃
Pulse Width=300us
1% Duty Cycle
SF35G-SF36G
SF31G-SF34G
