MR750 SERIES
IFSM , PEAK HALF WAVE CURRENT (AMP)
700
500
300
200
TYPICAL
iF, INSTANTANEOUS FORWARD CURRENT (AMP)
100
70
50
30
20
T
J
= 25°C
600
400
300
25°C
200
25°C
T
J
= 175°C
100
80
60
1.0
2.0
5.0
10
20
50
100
NUMBER OF CYCLES AT 60 Hz
175°C
V
RRM
MAY BE APPLIED BETWEEN
EACH CYCLE OF SURGE. THE T
J
NOTED IS T
J
PRIOR TO SURGE
MAXIMUM
10
7.0
5.0
3.0
2.0
COEFFICIENT (mV/
°
C)
+0.5
Figure 2. Maximum Surge Capability
0
TYPICAL RANGE
−0.5
1.0
0.7
0.5
0.3
0.2
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
v
F
, INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
−1.0
−1.5
−2.0
0.2
0.5
1.0
2.0
5.0
10
20
50
100
200
i
F
, INSTANTANEOUS FORWARD CURRENT (AMP)
Figure 1. Forward Voltage
20
10
5.0
HEAT SINK
Figure 3. Forward Voltage Temperature Coefficient
R
θ
JL(t) , JUNCTION−TO−LEAD TRANSIENT
THERMAL RESISTANCE (
°
C/W)
L
L
1/2"
3/8"
1/4"
1/8"
Both leads to heat sink, with lengths as shown. Variations in R
qJL(t)
below 2.0 seconds are independent of lead connections of 1/8 inch
or greater, and vary only about
±20%
from the values shown. Val-
ues for times greater than 2.0 seconds may be obtained by drawing
a curve, with the end point (at 70 seconds) taken from Figure 8, or
calculated from the notes, using the given curves as a guide. Either
typical or maximum values may be used. For R
qJL(t)
values at pulse
widths less than 0.1 second, the above curve can be extrapolated
down to 10
ms
at a continuing slope.
3.0
2.0
1.0
0.5
0.3
0.2
0.1
0.2
0.3
0.5
0.7
1.0
2.0
3.0
5.0
7.0
10
20
30
50
70
t, TIME (SECONDS)
Figure 4. Typical Transient Thermal Resistance
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