RATINGS AND CHARACTERISTIC CURVES SF21 THRU SF28
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
FIG. 1- FORWARD CURRENT DERATING CURVE
£PEAK FORWARD SURGE CURRENT,
AMPERES
2.0
FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
50
1.6
40
1.2
30
0.8
Single Phase
Half Wave 60Hz
Resistive or
inductive Load
20
0.4
10
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
0
0
25
50
75
100
125
150
175
0
1
10
100
AMBIENT TEMPERATURE, C
NUMBER OF CYCLES AT 60 Hz
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
1,000
20
10
T
J
=25 C
PULSE WIDTH=300
ms
1%DUTY CYCLE
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD
CURRENT,AMPERES
100
1
10
TJ=100 C
1
0.1
SF21-SF24
SF25-SF28
0.1
TJ=25 C
0.01
0
0.4
0.8
1.2
1.6
1.8
0.01
0
20
40
60
80
100
INSTANTANEOUS FORWARD VOLEAGE,
VOLTS
PERCENT OF PEAK REVERSE VOLTAGE,%
FIG. 5-TYPICAL JUNCTION CAPACITANCE
200
100
T
J
=25 C
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
TRANSIENT THERMAL IMPEDANCE,
C/W
100
JUNCTION CAPACITANCE, pF
10
10
1
SF21-SF24
SF25-SF28
1
0.1
1.0
10
100
0.1
0.01
0.1
1
10
100
REVERSE VOLTAGE,VOLTS
t,PULSE DURATION,sec.
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