1N4946(2001) データシートの表示（PDF） - Rectron Semiconductor
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1N4946 Datasheet PDF : 2 Pages
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RATING AND CHARACTERISTIC CURVES ( 1N4942 THRU 1N4948 )
FIG. 1 - TYPICAL FORWARD CURRENT
DERATING CURVE
1.0
.8
.6
.4
Single Phase
Half Wave 60Hz
.2 Resistive or
Inductive Load
0
0 25 50 75 100 125 150 175
AMBIENT TEMPERATURE, ( )
FIG. 2 - MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
50
8.3ms Single Half Sine-Wave
(JEDED Method)
40
30
20
10 1
0
0 2 4 6 8 10 20 40 60 80 100
NUMBER OF CYCLES AT 60Hz
FIG. 2 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
10
TJ = 25
1.0
Pulse Width=300uS
.1
1% Duty Cycle
.01
.4 .6 .8 1.0 1.2 1.4 1.6
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
20
10
TJ = 125
1.0
TJ = 75
.1
TJ = 25
.01
0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 3 - TYPICAL JUNCTION CAPACITANCE
200
FIG. 6 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY
100
TIME CHARACTERISTIC
60
40
50
NONINDUCTIVE
10
NONINDUCTIVE
trr
+0.5A
20
10
6
4
2
1
.1
TJ = 25
(+)
25 Vdc
(approx)
(-)
D.U.T
1
NON-
INDUCTIVE
(-)
PULSE
GENERATOR
(NOTE 2)
OSCILLOSCOPE
(+)
(NOTE 1)
0
-0.25A
-1.0A
.2 .4
1.0 2 4
NOTES:1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22pF.
10 20 40 100
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
REVERSE VOLTAGE, ( V )
1cm SET TIME BASE FOR
50/100 ns/cm
RECTRON
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