70HF(R) Series
7
Bulletin I20202 rev. F 01/05
www.irf.com
Fig. 11 - Forward Voltage Drop Characteristics
Fig. 9 - Maximum Non-Repetitive Surge Current Fig. 10 - Maximum Non-Repetitive Surge Current
300
400
500
600
700
800
900
1000
1100
110100
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
70HF(R) Series
Initial T = T Max.
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V Applied Following Surge.
RRM
J
J
200
300
400
500
600
700
800
900
1000
1100
1200
0.01 0.1 1
Peak Half Sine Wave Forward Current (A)
Pulse Train Duration (s)
Maximum Non Repetitive Surge Current
70HF(R) Series
Initial T = T Max.
No Voltage Reapplied
Rated V Reapplied
RRM
Versus Pulse Train Duration.
J
J
1
10
100
1000
00.511.522.53
T = 25°C
J
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
T = T Max.
J
J
70HF(R) Series
0.001
0.01
0.1
1
10
0.0001 0.001 0.01 0.1 1 10
Square Wave Pulse Duration (s)
thJC
Transient Thermal Impedance Z (K/W)
Steady State Value
R = 0.45 K/W
(DC Operation)
thJC
70HF(R) Series
Fig. 12 - Thermal Impedance Z
thJC
Characteristics
Fig. 13 - Forward Voltage Drop Characteristics
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
