I
(AV)
, AVERAGE FWD RECTIFIED CURRENT (A)
Single phase half wave
Resistive or Inductive load
I
F
, INSTANTANEOUS FORWARD CURRENT (A)
4
100
SF31 - SF34
3
10
SF35 - SF36
SF37
2
1.0
1
0.1
T
j
= 25
°
C
Pulse width = 300
µ
s
2% duty cycle
0
0
25
50
75
100
125
150
175
T
A
, AMBIENT TEMPERATURE (
°
C)
Fig. 1 Forward Current Derating Curve
0.01
0.6
1.0
1.4
1.8
V
F
, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
200
I
FSM
, PEAK FORWARD SURGE CURRENT (A)
8.3ms single half
sine-wave
1000
100
C
j
, CAPACITANCE (pF)
SF31 - SF34
100
SF35 - SF37
10
1
10
NUMBER OF CYCLES AT 60Hz
Fig. 3 Peak Forward Surge Current
100
10
1
10
V
R
, REVERSE VOLTAGE (V)
Fig. 4 Typical Junction Capacitance
t
rr
100
+0.5A
50
Ω
NI (Non-inductive)
10
Ω
NI
Device
Under
Test
(-)
Pulse
Generator
(Note 2)
0A
(+)
50V DC
Approx
-0.25A
(-)
1.0
Ω
NI
Oscilloscope
(Note 1)
(+)
Notes:
1. Rise Time = 7.0ns max. Input Impedance = 1.0M
Ω
, 22pF.
2. Rise Time = 10ns max. Input Impedance = 50
Ω
.
-1.0A
Set time base for 5/10ns/cm
Fig. 5 Reverse Recovery Time Characteristic and Test Circuit
SF31
–
SF37
2 of 2
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