C&H Technology UFB200FA20P - Manual (Page 5)

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4 Revision: 25-Apr-08
UFB200FA20P
Vishay High Power Products Insulated Ultrafast
Rectifier Module, 240 A
Fig. 5 - Maximum Allowable Case Temperature vs.
Avarage Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
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
= 80 % rated V
R
0 20
Allo
wab
le Case
T
e
mperature (°C)
I
F(AV)
- Average Forward Current (A)
130
140
150
See note (1)
100
DC
90
40 60
Square wave (D = 0.50)
Rated V
R
applied
100 160
70
80
80 120
110
120
140
0 40
A
v
era
g
e P
o
wer Loss (W)
I
F(AV)
- Average Forward Current (A)
0
D = 0.01
D = 0.02
D = 0.05
D = 0.10
D = 0.20
D = 0.50
DC
20 80
60
120
150
RMS limit
120 160
90
30
60 100 140
100 1000
t rr
(n
s
)
dI
F
/dt (A/µs)
20
40
V
R
= 160 V
T
J
= 125 °C
T
J
= 25 °C
30
70
10
I
F
= 150 A
I
F
= 75 A
60
50
100 1000
Q
rr
(nC)
dI
F
/dt (A/µs)
200
I
F
= 150 A
I
F
= 75 A
900
700
V
R
= 160 V
T
J
= 125 °C
T
J
= 25 °C
500
800
0
100
300
600
400