UFB280FA40 Vishay Siliconix, UFB280FA40 Datasheet - Page 4

• Manufacturer Part Number: UFB280FA40
• Description: Insulated Ultrafast Rectifier Module
• Manufacturer: Vishay Siliconix

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VS-UFB280FA40
Vishay Semiconductors
Note
(1)
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4
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
Formula used: T
Pd = Forward power loss = I
Pd
REV
175
150
125
100
250
225
200
175
150
125
100
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
75
50
25
75
50
25
Fig. 5 - Maximum Allowable Case Temperature vs.
0
0
= Inverse power loss = V
0
0
Square wave (D = 0.50)
80 % rated V
See note (1)
I
I
F(AV)
F(AV)
25
Average Forward Current (Per Leg)
40
C
- Average Forward Current (A)
50
- Average Forward Current (A)
= T
80
J
75
R
DC
- (Pd + Pd
applied
120
100
F(AV)
125
R1
160
x V
REV
x I
DC
150
FM
) x R
R
200
(1 - D); I
For technical questions, contact:
at (I
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Insulated Ultrafast Rectifier Module, 280 A
175 200
thJC
RMS limit
F(AV)
240
;
This document is subject to change without notice.
R
/D) (see fig. 6);
at V
280
225
R1
= 80 % rated V
R
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5000
4500
4000
3500
3000
2500
2000
1500
1000
250
200
150
100
500
50
0
Fig. 7 - Typical Reverse Recovery Time vs. dI
100
100
V
T
T
V
T
T
Fig. 8 - Typical Stored Charge vs. dI
I
I
J
J
R
J
J
R
F
F
= 125 °C
= 25 °C
= 125 °C
= 25 °C
= 200 V
= 200 V
= 150 A
= 75 A
dI
dI
F
F
/dt (A/µs)
/dt (A/µs)
www.vishay.com/doc?91000
Document Number: 93458
I
I
F
F
= 150 A
= 75 A
Revision: 13-May-11
F
/dt
1000
1000
F
/dt
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