SFR301
THRU
SFR307
3.0 AMPS. Soft Fast Recovery Rectifiers
Voltage Range
50 to 1000 Volts
Current
3.0 Amperes
Features
Low forward voltage drop
High current capability
High reliability
High surge current capability
Fast switching for high efficiency
DO-201AD
Mechanical Data
Cases: Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Axial leads, solderable per MIL-STD-
202, Method 208 guaranteed
Polarity: Color band denotes cathode end
High temperature soldering guaranteed:
260℃/10 seconds/.375”,(9.5mm) lead lengths
at 5 lbs.,(2.3kg) tension
Weight: 1.2 grams
Dimensions in inches and (millimeters)
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 SFR SFR
Type Number
301 302
Maximum Recurrent Peak Reverse Voltage
50 100
V
RRM
Maximum RMS Voltage
35
70
V
RMS
Maximum DC Blocking Voltage
50 100
V
DC
Maximum Average Forward Rectified
Current .375”(9.5mm) Lead Length
@T
A
= 55℃
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated
Load (JEDEC method )
Maximum Instantaneous Forward Voltage
@3.0A
Maximum DC Reverse Current @ T
A
=25℃
at Rated DC Blocking Voltage @ T
A
=75℃
Maximum Reverse Recovery Time ( Note 1 )
Typical Junction Capacitance ( Note 2 )
Typical Thermal Resistance ( Note 3 )
Operating Temperature Range
Storage Temperature Range
SFR
303
SFR
304
SFR
305
SFR
306
SFR
Units
307
200
140
200
400
280
400
3.0
150
1.2
5.0
100
600
420
600
800 1000
560 700
800 1000
V
V
V
A
A
V
uA
uA
nS
pF
O
I
(AV)
I
FSM
V
F
I
R
Trr
Cj
R
θ
JA
T
J
T
STG
120
200
40
45
-65 to +150
-65 to +150
350
C/W
℃
℃
Notes: 1. Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 Volts D.C.
3. Mount on Cu-Pad Size 16mm x 16mm on P.C.B.
- 428 -
RATINGS AND CHARACTERISTIC CURVES (SFR301 THRU SFR307)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
AVERAGE FORWARD CURRENT AMPERES
4
150
FIG.2- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT. (A)
100
3
50
2
1
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375" (9.5mm)
Lead Length
0
25
50
75
100
o
Tj=25
0
C
8.3ms Single Half Sine Wave
JEDEC Method
0
125
150
175
AMBIENT TEMPERATURE. ( C)
10
5
10
50
100
NUMBER OF CYCLES AT 60Hz
FIG.3- TYPICAL FORWARD CHARACTERISTICS
20
10
100
FIG.4- TYPICAL JUNCTION CAPACITANCE
Tj=25
0
C
JUNCTION CAPACITANCE.(pF)
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
60
INSTANTANEOUS FORWARD CURRENT. (A)
3.0
40
1.0
20
0.3
0.1
10
1
2
4
6
10
20
40
60
100
REVERSE VOLTAGE. (V)
.03
.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
FORWARD VOLTAGE. (V)
FIG.5- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50W
NONINDUCTIVE
10W
NONINDUCTIVE
+0.5A
(-)
DUT
(+)
50Vdc
(approx)
(-)
PULSE
GENERATOR
(NOTE 2)
1W
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
(+)
0
-0.25A
trr
NOTES: 1. Rise Time=7ns max. Input Impedance=
1 megohm 22pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
-1.0A
1cm
SET TIME BASE FOR
5/ 10ns/ cm
- 429 -
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