RATINGS AND CHARACTERISTIC CURVES
50
N.1.
10
N.1.
1N4933-
--1N4937
FIG.1 -- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
t
rr
+0.5A
D.U.T.
(+)
50VDC
(APPROX)
(-)
1
N.1.
( - )
PULSE
GENERATOR
(NOTE2)
OSCILLOSCOPE
(NOTE 1)
( + )
0
-0.25A
-1.0A
N TE 1. R TIM = 7ns M IN U IM E AN E= 1M . 22P
O S: ISE E
AX. P T P D C
F
2. R TIM = 10ns M SO R EIM E AN E= 50
ISE E
AX. U C P D C
SE TIM BASE FO 50/100 ns /cm
T E
R
1cm
FIG.2 --FORWARD DERATING CURVE
INSTANTANEOUS FORWARD CURRENT
AMPERES
FIG.3 -- TYPICAL FORWARD CHARACTERISTICS
AVERAGE FORWARD CURRENT
AMPERES
1.0
100
10
4
2
1 .0
0 .4
0 .2
0 .1
0 .06
0 .04
0 .02
0 .01
0 .6
0 .8
1 .0
1 .2
1 .4
1 .6
1.8
2.0
T
J
=25
P u ls e W id th = 3 0 0
µ
S
.8
.6
.4.
.2
Single Phase
Half Wave 60H
Z
Resistive or
Inductive Load
25
50
75
100
0
125
150
175
AMBIENT TEMPERATURE,
FIG.4--PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURREN
AMPERES
INSTANTANEOUS FORWARD VOLTAGE,VOLTS
FIG.5-- TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE,pF
10
16
14
12
10
50
8.3ms Single Half
Sine-Wave
40
30
20
4
2
1
.1
10
0
1
2
TJ=25
f=1MHz
4
6
8 10
20
40
60 80 100
.2
.4
1.0
2
4
10
20
40
100
NUMBER OF CYCLES AT 60 Hz
REVERSE VOLTAGE,VOLTS
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Document Number 0261014
BL
GALAXY ELECTRICAL
2.
BILIN [ GALAXY SEMI-CONDUCTOR HOLDINGS LIMITED ]
