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PRESSFIT RECTIFIER DIODES
Features and Descriptions
Convenient pressfit package
Available with and without leads
High surge capabilities
Application
Welders, Battery charges, Alternators
Bulletin I20262 Rev.A 06/03
8AF SERIES
50 A
Major Ratings and Characteristics
Parameters
IF(AV)
IF(RMS)
IFSM
I2t
@TC
@50Hz
@60Hz
@50Hz
@60Hz
I2√t
8AF
50
150
79
714
747
2546
2324
25455
Units
A
°C
A
A
A
A2s
A2s
A2√s
VRRM range
TJ
100 to 800
- 65 to 195
V
oC
IR Case Style B-47
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1






8AF Series
Bulletin I20262 Rev.A 06/03
200
8AF Series
RthJC (DC) = 0.6 K/W
190
180
Conduction Angle
170
200
8AF Series
RthJC (DC) = 0.6 K/W
190
180
Conduction Period
170
160
150
140
0
90°
60° 120°
30° 180°
5 10 15 20 25 30 35 40 45 50 55
Average Forward Current (A)
Fig. 1 - Current Ratings Characteristics
160
150
140
0
90°
60°
30°
120° 180°
DC
10 20 30 40 50 60 70 80
Average Forward Current (A)
Fig. 2 - Current Ratings Characteristics
80
70
60
50
40
30
20
10
0
0
180°
120°
90°
60°
30°
RMS Limit
R
1.5 K/W
2 K/W
3 K/W
= 1 K/W
- Delta R
Conduction Angle
8AF Series
TJ = 195°C
5 K/W
10 K/W
15 K/W
10 20 30 40 50
Average Forward Current (A)
600 25 50 75 100 125 150
Maximum Allowable Ambient Temperature (°C)
Fig. 3 - Forward Power Loss Characteristics
90
80 DC
180°
70 120°
90°
60 60°
30°
50
RMS Limit
R
1.5 K/W
2 K/W
3 K/W
= 1 K/W
- Delta R
40
5 K/W
30
Conduction Period
20 10 K/W
8AF Series
10
TJ = 195°C
15 K/W
0
0 10 20 30 40 50 60 70 800 25 50 75 100 125 150
Average Forward Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 4 - Forward Power Loss Characteristics
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