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Dated : 20/06/2003
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Fig. 3-TYPICAL FORWARD CHARACTERISTICS
FORWARD VOLTAGE, (V)
0.01
0.1
3.0
20
0.4
0.6
0.8
1.0
1.2
1.4
1.6
NUMBER OF CYCLES AT 60Hz
0
Fig. 2-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
10
100
10
20
30
40
50
Fig. 1-MAXIMUM FORWARD CURRENT DERATING CURVE
0
0.5
1.0
1.5
AMBIENT TEMPERATURE, C
25
50
75
100
125
150
175
2.0
o
20
1
10
100
REVERSE VOLTAGE. (V)
Fig. 4-TYPICAL JUNCTION CAPACITANCE
100
Tj=25 C
o
Tj=25 C
Pulse Width=300 s
1% Duty Cycle
o
SINGLE PHASE
HALF WAVE
60Hz
RESISTIVE OR
INDUCTIVE LOAD
.375" 9.5 mm LEAD LENGTH
0
60
24
6
40
10
0.3
1.0
0.03
1.8
10
40
60
24 6
20
40 60
Fig. 5-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
PULSE
GERATOR
(NOTE 2)
50
NONINDUCTIVE
(+)
50Vdc
(appox)
(-)
DUT
OSCILLOSCOPE
(NOTE 1)
10
NONINDUCTIVE
1
NON
INDUCTIVE
(-)
(+)
NOTES:1. Rise Time=7ns max. Input Impedance=
1 megohm 22 pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
+0.5A
0
-0.25A
-1.0A
SET TIME BASE FOR
5/10ns/cm
trr
1cm
RATINGS AND CHARACTERISTIC CURVES (SFR151 THRU SFR157)
SFR151 THRU SFR157