70cru04pbf, Vishay high power products, Ultrafast rectifier, 2 x 35 a fred pt – Vishay 70CRU04PbF User Manual
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Document Number: 94510
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Revision: 21-Jul-08
70CRU04PbF
Vishay High Power Products
Ultrafast Rectifier,
2 x 35 A FRED Pt
TM
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Typical Reverse Recovery Time vs. dI
F
/dt
Fig. 8 - Typical Stored Charge vs. dI
F
/dt
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
= Rated V
R
Average Forward Current - I
F(AV)
(A)
Allowable Case Temperature (°C)
100
110
120
130
140
150
160
170
180
0
5
10
15
20
25
30
35
40
DC
Square wave (D = 0.50)
Rated Vr applied
see note (1)
Average Power Loss ( Watts )
Average Forward Current - I
F(AV)
(A)
0
5
10
15
20
25
30
35
40
0
5
10
15
20
25
30
35
RMS Limit
D = 0.01
D = 0.02
D = 0.05
D = 0.10
D = 0.20
D = 0.50
DC
trr ( ns )
di
F
/dt (A/μs )
50
60
70
80
90
100
110
120
130
140
150
100
1000
Tj = 125˚C
Tj = 25˚C
If = 35A
Vrr = 200V
Qrr ( nC )
di
F
/dt (A/μs )
0
500
1000
1500
2000
2500
100
1000
Tj = 125˚C
Tj = 25˚C
If = 35A
Vrr = 200V