MBRS340TRPbF
Vishay High Power Products
Schottky Rectifier, 3.0 A
160
150
140
130
120
110
100
90
80
70
60
2.0
Allowable Case Temperature (°C)
DC
Average Power Loss (W)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
1.5
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
RMS limit
1.0
Square
wave
(D = 0.50)
Rated
V
R
applied
See note (1)
0.5
DC
0
0
1
2
3
4
5
0
0.5
1.0
1.5
2.0
2.5
3.0 3.5
4.0
4.5
I
F(AV)
- Average Forward Current (A)
Fig. 5 - Maximum Average Forward Current vs.
Allowable Lead Temperature
I
F(AV)
- Average Forward Current (A)
Fig. 6 - Maximum Average Forward Dissipation vs.
Average Forward Current
I
FSM
- Non-Repetitive Surge Current (A)
1000
100
At any rated load condition
and
with
rated
V
RRM
applied
following surge
10
10
100
1000
10 000
t
p
- Square Wave Pulse Duration (µs)
Fig. 7 - Maximum Peak Surge Forward Current vs. Pulse Duration
(1)
Note
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
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Document Number: 94321
Revision: 09-Oct-08
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