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Dated : 11/11/2002
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
FIG.3- PEAK FORWARD SURGE CURRENT
+0.5A
-1.0A
0
-0.25
FIG.1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
200
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
1.2
0.6
0.4
0.01
1.0
0.1
0.8
1.0
TJ=25 C
o
1.4
1.6
50
1
0
100
150
FIG.2-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
NOTES:1. Rise Time=7ns max. Input impedance=1 megohm, 22pF.
2.Rise Time=10ns max. Source impedance=50 ohms.
OSCILLOSCOPE
(NOTE 1)
10
NONINDUCTIVE
10
50
NONINDUCTIVE
(+)
25 Vdc
(approx.)
(-)
10
NONINDUCTIVE
D.U.T
250
PULSE
GENERATOR
(NOTE 2)
(+)
(-)
100
NUMBER OF CYCLES AT 60 Hz
10
TJ=25 C
o
SET TIME BASE. FOR
50/100ns/cm
1cm
trr
R30A THRU 30M
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