0.001

0.01

1

10

0.1

100

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

I , BASE CURRENT (mA)

Fig. 4 Typical Collector Saturation Region

B

I= 1mA

C

I= 10mA

C

I= 30mA

C

I = 100mA

C

I = 300mA

C

1.0

5.0

20

10

30

0.1

10

1.0

50

REVERSE VOLTS (V)

Fig. 3 Typical Capacitance

Cobo

Cibo

1

0.1

10

100

I , COLLECTOR CURRENT (mA)

Fig. 6 Base Emitter Voltage vs. Collector Current

C

0.2

0.3

0.4

0.6

0.5

0.8

0.7

1.0

0.9

V= 5V

CE

T= 25°C

A

T= -50°C

A

T = 150°C

A

110

100

1000

I , COLLECTOR CURRENT (mA)

Fig. 5 Collector Emitter Saturation Voltage

vs. Collector Current

C

T= 25°C

A

T= -50°C

A

T = 150°C

A

0

0.1

0.2

0.3

0.4

0.5

I

I

C

B

= 10

DS30039 Rev. 9 - 2

3 of 4

www.diodes.com

MMBT4401

© Diodes Incorporated

1

10

100

1000

110

I , COLLECTOR CURRENT (mA)

Fig. 7 Gain Bandwidth Product vs. Collector Current

C

100

V= 5V

CE