SFR151
THRU
SFR157
1.5 AMPS. Soft Fast Recovery Rectifiers
Voltage Range
50 to 1000 Volts
Current
1.5 Amperes
Features
Low forward voltage drop
High current capability
High reliability
High surge current capability
Fast switching for high efficiency
DO-15
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: 0.40 gram
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
151 152
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
@ 1.5A
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
153
SFR
154
SFR
155
SFR
156
SFR
Units
157
200
140
200
400
280
400
1.5
50
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
15
65
-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 10mm x 10mm on P.C.B.
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RATINGS AND CHARACTERISTIC CURVES (SFR151 THRU SFR157)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
2.0
AVERAGE FORWARD CURRENT AMPERES
60
FIG.2- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT. (A)
50
40
1.5
1.0
30
0.5
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375" (9.5mm)
Lead Length
0
25
50
75
100
o
20
10
0
1
2
4
6
10
40
100
NUMBER OF CYCLES AT 60Hz
0
125
150
175
AMBIENT TEMPERATURE. ( C)
FIG.3- TYPICAL FORWARD CHARACTERISTICS
20
10
90
FIG.4- TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE.(pF)
INSTANTANEOUS FORWARD CURRENT. (A)
3.0
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
70
50
30
20
10
1.0
0.3
Tj=25
0
C
0.1
1
1
2
4
6
10
20
40
60
100
REVERSE VOLTAGE. (V)
0.03
0.01
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
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