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Vishay semiconductors – C&H Technology VS-UFB130FA20 User Manual

Page 5

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VS-UFB130FA20

www.vishay.com

Vishay Semiconductors

Revision: 26-Oct-11

4

Document Number: 93606

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Fig. 5 - Maximum Allowable Case Temperature vs.

Average 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

I

F(AV)

- Average Forward Current (A)

DC

0

25

50

75

100

125

150

175

0

25

50

75

100

125

150

175

200

A

llo

w

a

b

le

C

a

s

e

T

e

m

p

er

at

u

re (

°

C)

Square Wave (D = 0.5)
Rated V

R

applied

I

F(AV)

- Average Forward Current (A)

Average Power Loss (W)

0

0

10 20 30 40 50 60 70 80 90 100 110 120

25

50

75

100

125

150

RMS Limit

D = 0.05
D = 0.10

D = 0.20

D = 0.50

D = 0.33

DC

t

rr

(ns)

0

10

20

30

40

50

60

70

80

T

J

= 125 °C

T

J

= 25 °C

I

F

= 50 A

V

rr

= 200 V

100

1000

dI

F

/dt (A/μs)

Q

rr

(nC)

0

100

200

300

400

500

600

700

800

0

0

0

1

0

0

1

T

J

= 125 °C

T

J

= 25 °C

I

F

= 50 A

V

rr

= 200 V

dI

F

/dt (A/μs)