Datasheet

VS-20L15TPbF, VS-20L15T-N3
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Vishay Semiconductors
Revision: 26-Aug-11
4
Document Number: 94165
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Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Maximum Non-Repetitive Surge Current
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6);
Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= 80 % rated V
R
I
F(AV)
- Average Forward Current (A)
Allowable Case Temperature (°C)
70
75
80
85
90
95
100
048 12 16 20 24
See note (1)
Square wave (D = 0.50)
I
F(AV)
- Average Forward Current (A)
Average Power Loss (W)
0 5 10 15 20 25 30
0
2
4
6
8
10
12
14
RMS limit
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
t
p
- Square Wave Pulse Duration (µs)
I
FSM
- Non-Repetitive Surge
Current (A)
10
100
1000
10 000
100
1000
At any rated load condition and
with rated V
RRM
applied
following surge
Current
monitor
High-speed
switch
D.U.T.
R
g
= 25 Ω
+
Freewheel
diode
V
d
= 25 V
L
IRFP460
40HFL40S02