
40HF(R) Series
7
Bulletin I20201 rev. A 09/98
www.irf.com
Fig. 11 - Forward Voltage Drop Characteristics
Fig. 9 - Maximum Non-Repetitive Surge Current Fig. 10 - Maximum Non-Repetitive Surge Current
100
150
200
250
300
350
400
450
500
550
1 10 100
P eak Half Sine Wav e F orwar d C urrent (A)
N um b er Of E q ua l Am p lit ud e Ha lf Cycle Cu rren t P u lse s (N )
I nitial T = T M ax .
@ 60 Hz 0.00 83 s
@ 50 Hz 0.01 00 s
A t Any Ra ted Lo ad Condition A nd Wit h
R ated V Applied Following Surge.
RRM
40HF( R ) S er ies
J J
100
150
200
250
300
350
400
450
500
550
600
0.01 0.1 1
P eak H alf Sin e Wave For war d C urrent (A)
P ulse Train Duration ( s )
Maximum Non Repe titive Surge C urrent
40H F(R ) S eri es
I n itial T = T Max.
No Voltag e Reappli ed
R at ed V Reap plied
V er s us Pulse Tra in Duration.
RRM
J
J
1
10
100
1000
00.511.522.533.544.55
T = 25°C
J
In stantaneous Forward C urrent (A)
Instantaneou s Forward Voltage (V)
T = T Max.
J J
4 0HF (R) Se ri es
Fig. 12 - Thermal Impedance ZthJC Characteristics
0.01
0.1
1
10
0.0001 0.001 0.01 0.1 1 10
S quar e Wave P ulse D uration (s)
Transient Thermal Impedance Z (K/W)
40HF (R ) S eries
thJC
S tea dy Stat e Va lue
R = 1.0 K/W
(D C O per ation)
thJC
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