2N5655, 2N5657

http://onsemi.com

3

1.0

20

Figure 3. Active−Region Safe Operating Area

0.5

0.2

0.1

0.01

30

40

60

100

200

300 400

600

Second Breakdown Limit

Bonding Wire Limit

d-

c

1.0 ms

0.05

0.02

10

ms

2N5655

2N5657

500

ms

There are two limitations on the power handling ability of

a transistor: average junction temperature and second

limits of the transistor that must be observed for reliable

operation; i.e., the transistor must not be subjected to greater

dissipation than the curves indicate.

variable depending on conditions. Second breakdown pulse

v 150_C. At high case temperatures, thermal limitations

will reduce the power that can be handled to values less than

the limitations imposed by second breakdown.

Figure 4. Current Gain

300

10

1.0

200

100

70

50

30

2.0

3.0

5.0

7.0

30

50

70

100

200

300

500

10

20

20

+25

°C

−55

°C

+100

°C

1.0

10

0.8

0.6

0.4

0

20

50

100

200 300

500

0.2

30

Figure 5. “On” Voltages