BYV255V

3/5

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

0

50

100

150

200

250

300

350

400

450

500

P=100W

P=70W

P=40W

P=20W

T

I

M

=tp/T

tp

IM(A)

Fig.2 : Peak current versus form factor.

Tj=125 C

o

IFM(A)

1

10

100

1000

VFM(V)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

Fig.3 : Forward voltage drop versus forward

current (maximum values).

0.1

1.0

0.2

0.5

Zth(j-c) (tp.

)

K=

Rth(j-c)

=0 . 5

=0 . 2

=0 . 1

Single pulse

tp(s)

T

=t p/T

tp

1.0E-03

1.0E-02

1.0E-01

1. 0E+0 0

K

Fig.4 : Relative variation of thermal impedance

junction to case versus pulse duration.

0

204060

80

100

120

0

10

20

30

40

50

60

70

80

90

100

110

120

=0.05

=0.1

=0.2

=0.5

T

=tp/T

tp

IF(av)(A)

P F(av)(W)

=1

Fig.1 : Average forward power dissipation versus

average forward current.

0

20406080

100

120

140

160

0

20

40

60

80

100

120

T

=tp/T

tp

=0.5

F(av)(A)

I

o

Tamb( C)

Rth(j-a)=Rth(j-c)

Fig.6

:

Average

current

versus

ambient

temperature. (duty cycle : 0.5)

0.001

0.01

0.1

1

0

100

200

300

400

500

600

700

800

900

1000

I M(A)

IM

t

=0.5

t(s)

Tc=25 C

o

Tc=110 C

o

Tc=75 C

o

Fig.5 : Non repetitive surge peak forward current

versus overload duration.