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Document Number: 94179
4 Revision: 04-Mar-10
VS-30BQ040PbF
Vishay High Power Products
Schottky Rectifier, 3.0 A
Fig. 5 - Maximum Average Forward Current vs.
Allowable Lead Temperature
Fig. 6 - Maximum Average Forward Dissipation vs.
Average Forward Current
Fig. 7 - Maximum Peak Surge Forward Current vs. Pulse Duration
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
70
80
90
100
110
120
130
140
150
160
Allowable Lead Temperature (°C)
I
F(AV)
- Average Forward Current (A)
13
5
420
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Square wave (D = 0.50)
80 % rated V
R
applied
See note (1)
0
1.0
1.5
0.5
2.0
Average Power Loss (W)
I
F(AV)
- Average Forward Current (A)
0.5 1.5 3.0
4.5
3.5 4.02.01.00
2.5
DC
RMS limit
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
10
1000
100
10 000
I
FSM
- Non-Repetitive Surge Current (A)
t
p
- Square Pulse Duration (µs)
10 000100010010
At any rated load condition
and with rated V
RRM
applied
following surge