www.vishay.com

For technical questions within your region, please contact one of the following:

Document Number: 86006

148

Rev. 1.7, 09-Aug-10

BY448 , BY458

Vishay Semiconductors

Standard Avalanche Sinterglass

Diode

Fig. 1 - Typ. Thermal Resistance vs. Lead Length

Fig. 2 - Forward Current vs. Forward Voltage

Fig. 3 - Max. Average Forward Current vs. Ambient Temperature

Fig. 4 - Reverse Current vs. Junction Temperature

Fig. 5 - Max. Reverse Power Dissipation vs. Junction Temperature

Fig. 6 - Diode Capacitance vs. Reverse Voltage

0

20

40

80

60

100

120

15

10

5

0

202530

l - Lead Length (mm)

949101

ll

T

0.001

0.01

0.1

1

10

100

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

16417

T

T

0

0.5

1.0

1.5

2.0

2.5

16418

075

50

25

125

100

150

V

half sine wave

R

l = 10 mm

R

PCB: d = 25 mm

1

10

100

1000

25

50

75

100

125

150

16419

V

0

50

100

150

200

250

300

350

400

25

50

75

100

125

150

16420

V

P

P

0

5

10

15

20

25

30

35

0.1

1

10

100

16421

f = 1 MHz