Datasheet

MBRS190TR, MBRS1100TR
Bulletin PD-20592 rev. C 05/02
4
www.irf.com
Fig. 4 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
Fig. 5 - Maximum Average Forward Dissipation
Vs. Average Forward Current
Fig. 6 - Maximum Peak Surge Forward Current Vs. Pulse Duration
(2) Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/ D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
Average Forward Current - I
F(AV)
(A)
Allowable Lead Temperature (°C)
Average Forward Current - I
F(AV)
(A)
Average Power Loss (Watts)
Square Wave Pulse Duration - T
p
(Microsec)
Non-Repetitive Surge Current - I
FSM
(A)
0
0.2
0.4
0.6
0.8
1
0 0.3 0.6 0.9 1.2 1.5
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
110
120
130
140
150
160
170
180
0 0.4 0.8 1.2 1.6
DC
Square wave (D = 0.50)
Rated Vr applied
see note (2)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
10
100
1000
10 100 1000 10000
At Any Rated Load Condition
And With rated Vrrm Applied
Following Surge