BL
FEATURES
Low cost
Low leakage
GALAXY ELECTRICAL
SF51G --- SF56G
VOLTAGE RANGE: 50 --- 400 V
CURRENT: 5.0 A
SUPER FAST RECTIFIERS
DO - 27
Low forward voltage drop
Glass passivated junction
The plastic material carries U/L recognition 94V-0
MECHANICAL DATA
Case:JEDEC DO--27,molded plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Polarity: Color band denotes cathode
Weight: 0.041 ounces,1.15 grams
Mounting position: Any
Dimensions in millimeters
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
SF51G
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
9.5mm lead length,
@T
A
=75
SF52G
100
70
100
SF53G
150
105
150
5.0
SF54G
200
140
200
SF55G
300
210
300
SF56G UNITS
400
280
400
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
50
35
50
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
Maximum instantaneous forw ard voltage
@ 5.0A
Maximum reverse current
@T
A
=25
I
FSM
150.0
A
V
F
I
R
t
rr
C
J
R
θ
JA
T
J
T
STG
0.95
5.0
100.0
35
50
25
- 55 ----- + 150
- 55 ----- + 150
1.25
V
A
ns
at rated DC blocking voltage @T
A
=100
Maximum reverse recovery time
Typical junction capacitance
Typical thermal resistance
(Note1)
(Note2)
(Note3)
30
pF
/W
Operating junction temperature range
Storage temperature range
NOTE: 1. Measured with I
F
=0.5A, I
R
=1A, I
rr
=0.25A.
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2. Measured at 1.0MH
Z
and applied rev erse v oltage of 4.0V DC.
3. Thermal resistance f rom junction to ambient.
Document Number
1769002
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
SF51G --- SF56G
FIG.1 -- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50
N 1.
10
N 1.
t
rr
+0.5A
D.U.T.
0
(+)
25VDC
(approx)
(-)
1
NONIN-
DUCTIVE
PULSE
GENERATOR
(NOTE2)
OSCILLOSCOPE
(NOTE 1)
-0.25A
-1.0A
1cm
NOTES:1.RISE TIME = 7ns MAX.INPUT IMPEDANCE = 1M .22pF.
JJJJJ2.RISE
TIME =10ns MAX.SOURCE IMPEDANCE=50 .
SET TIME BASE FOR 10 ns/cm
FIG.2 -- TYPICAL FORW ARD CHARACTERISTIC
INSTANTANEOUS FORWARD CURRENT
6.0
FIG.3 -- FORW ARD DERATING CURVE
z
AVERAGE FORWARD CURRENT
6 .0
5 .0
SF51G---SF54G
SF55G---SF56G
AMPERES
5.0
AMPERES
4 .0
3 .0
2 .0
1 .0
0
0
25
50
75
100
125
150
175
4.0
T
J
=25
Pulse Width=300
µ
s
Single Phase
Half Wave 60H
Z
Resistive or
Inductive Load
0.375"(9.5mm)Lead Length
3.0
0.3
0.5
0.7
0.9
1.1
1.3
1.5
INSTANTANEOUS FORW ARD VOLTAGE, VOLTS
AMBIENT TEMPERATURE,
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
PEAK FORWARD SURGE CURRENT
FIG.5 -- PEAK FORW ARD SURGE CURRENT
JUNCTION CAPACITANCE,pF
200
100
60
40
20
10
6
4
T
J
=25
SF55G - SF56G
SF51G - SF54G
175
150
125
8.3ms Single Half
Sine-Wave
AMPERES
100
75
50
25
0
1
5
10
50
100
2
1
0.1 0.2
0.4
1
2
4
10
20 40
100
REVERSE VOLTAGE,VOLTS
NUMBER OF CYCLES AT 60Hz
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Document Number
1769002
BL
GALAXY ELECTRICAL
2.
MCU
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