FAST RECOVER RECTIFIER
FR251 THRU FR257
VOLTAGE RANGE
CURRENT
50 to 1000 Volts
2 .5Ampere
RATING AND CHRACTERISTIC CURVES FR251 THRU FR257
FIG.2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
200
8.3ms Single Half Sine-Wave
(JEDEC Method) Tj=Tjmax
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
3.0
AVERAGE FORWARD CURRENT,
PEAK FORWARD SURGE
100
80
2.0
CURRENT, (A)
60
(A)
40
1.0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375"(9.5mm)Lead Length
20
0
0
25
50
75
100
125
150
175
10
1
2
4
6
8
10
20
40
60 80 100
AMBIENT TEMPERATURE, (° C)
NUMBER OF CYCLES AT 60 Hz
FIG.3-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT,
20
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
10
10
INSTANTANEOUS REVERSE CURRENT,
T
j
=100° C
1.0
(A)
1.0
Tj =25° C
Pulse Width=300us
1% Duty Cycle
0.1
(uA)
0.1
T
j
=25° C
0.01
0
20
40
60
80
100
120
140
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
INSTANTANEOUS FORWARD VOLTAGE,(V)
PERCENT OF RATED PEAK
REVERSE VOLTAGE,(%)
FIG.5-TYPICAL JUNCTION CAPACITANCE
FIG.6-TEST CIRCUIT DIAGRAM AND
REVERSE REXOVERY TIME CHARACTERISTIC
100
80
60
+0.5A
JUNCTION CAPACITANCE,(pF)
40
50Ω
NONINDUCTIVE
10Ω
NONINDUCTIVE
20
(+)
25 Vdc
(approx)
(-)
(-)
0
0.25A
D.U.T
10
8
6
4
TJ=25° C F=1MHz
2
Vsig=50mVp-p
PULSE
GENERATIOR
(NOTE 2)
1Ω
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
-1.0A
NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF
2.Rise time=10ns max.Source Impedance=50 ohms
SET TIME BASE FOR
50 /100NS /cm
1
0.1
1.0
10
100
REVERSE VOLTAGE,(V)
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