USF31 Datasheet, PDF (2/2 Pages) Galaxy Semi-Conductor Holdings Limited – SUPER FAST RECTIFIER

USF31-USF34
Super Fast Rectifiers
Ratings AND Charactieristic Curves
FIG.1 -- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50
10
N 1.
N 1.
trr
+0.5A
(+)
25VDC
(approx)
(-)
D.U.T.
1
NONIN-
DUCTIVE
OSCILLOSCOPE
(NOTE 1)
PULSE
GENERATOR
(NOTE2)
NOTES:1.RISE TIME = 7ns MAX.INPUT IMPEDANCE = 1M .22pF.
JJJJJ2.RISE TIME =10ns MAX.SOURCE IMPEDANCE=50 .
0
-0 .2 5A
-1 .0 A
1 cm
SET TIME BASE FOR 10/20 ns/cm
FIG.2 -- TYPICAL FORWARD CHARACTERISTIC
100
40
20
10
TJ=25
P ulse W idth=300 µ s
4
2
1
0.4
0.2
0.1
0 .0 4
0 .0 2
0 .0 1
0 0.2
0.4 0.6 0.8 1.0 1.2 1.4
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
FIG.3 -- FORWARD DERATING CURVE z
Single Phase
5
Half Wave 60HZ
Resistive or
Inductive Load
4
0.375"(9.5mm)Lead Length
3
2
1
0
0 25 50 75 100 125 150 175
AMBIENT TEMPERATURE,
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
100
60
40
20
10
6
4
2
TJ=25
f=1.0MHZ
01.1 0.2 0.4 1 2 4 10 20 40 100
REVERSE VOLTAGE,VOLTS
FIG.5 -- PEAK FORWARD SURGE CURRENT
150
125
8.3ms Single Half
Sine-Wave
100
75
50
25
0
1
5 10
50 100
NUMBER OF CYCLES AT 60Hz
FIG.6 -- TYPICAL REVERSE CHARACTERISTICS
100
T J= 1 5 0
10
1
T J=100
.1
.0 1
0 20
T J= 2 5
40 60 80
100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE,
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