MUR805G, MUR810G, MUR815G, MUR820G, MUR840G, MUR860G, MURF860G,
SUR8820G, SUR8840G
http://onsemi.com
4
MUR840G, SUR8840G
Figure 6. Typical Forward Voltage
vF,
INSTANTANEOUS VOLTAGE (VOLTS)
0.6 1.00.8 1.2 1.6
30
0.1
0.3
0.2
2.0
1.0
100
20
7.0
3.0
0.5
5.0
50
, INSTANTANEOUS FORWARD CURRENT (AMPS)
F
VR, REVERSE VOLTAGE (VOLTS)
0 15050 200 500100 250 300
350
400
450
1000
0.1
0.01
10
100
TJ
= 175
°C
I
R
Figure 7. Typical Reverse Current*
TA, AMBIENT TEMPERATURE (°C)
0
12
2.0
6.0
4.0
14
I
F(AV)
0
20 40 60 80 200100 120 140 160 180
TC, CASE TEMPERATURE (°C)
140 150
0
2.0
1.0
3.0
5.0
4.0
I
180
Figure 8. Current Derating, Case
Figure 9. Current Derating, Ambient
0
1.0
6.0
10
0
1.0 2.0
IF(AV), AVERAGE FORWARD CURRENT (AMPS)
Figure 10. Power Dissipation
0.4
0.7
10
70
1.4
100°C
TJ= 175°C
25°C
1.0
, REVERSE CURRENT ( A)
100°C
25°C
170
160
* The curves shown are typical for the highest voltage device in the
grouping. Typical reverse current for lower voltage selections can be
estimated from these same curves if VR
is sufficiently below rated V
R.
P
, AVERAGE FORWARD CURRENT (AMPS)
TJ
= 175
°C
i
, AVERAGE FORWARD CURRENT (AMPS)
F(AV)
3.0 4.0 105.0 6.0 7.0 8.0 9.0
5.0
2.0
RATED VR
APPLIED
dc
SQUARE WAVE
SQUARE WAVE
8.0
10
dc
, AVERAGE POWER DISSIPATION (WATTS)
F(AV)
3.0
4.0
9.0
8.0
7.0
7.0
6.0
8.0
10
9.0
SQUARE WAVE
dc
SQUARE WAVE
dc
RJA
= 16
°C/W
RJA
= 60
°C/W
(NO HEAT SINK)
150°C