NPN MMBT3904WT1 PNP MMBT3906WT1

4

Motorola Small–Signal Transistors, FETs and Diodes Device Data

MMBT3904WT1

Figure 5. Turn – On Time

IC, COLLECTOR CURRENT (mA)

70

100

200

300

500

50

Figure 6. Rise Time

IC, COLLECTOR CURRENT (mA)

1.0

2.0 3.0

10

20

70

5

100

Figure 7. Storage Time

IC, COLLECTOR CURRENT (mA)

Figure 8. Fall Time

IC, COLLECTOR CURRENT (mA)

5.0 7.0

30

50

200

10

30

7

20

70

100

200

300

500

50

1.0

2.0 3.0

10

20

70

5

100

5.0 7.0

30

50

200

10

30

7

20

70

100

200

300

500

50

1.0

2.0 3.0

10

20

70

5

100

5.0 7.0

30

50

200

10

30

7

20

70

100

200

300

500

50

1.0

2.0 3.0

10

20

70

5

100

5.0 7.0

30

50

200

10

30

7

20

VCC = 40 V

IC/IB = 10

VCC = 40 V

IB1 = IB2

IC/IB = 20

IC/IB = 10

IC/IB = 10

tr @ VCC = 3.0 V

td @ VOB = 0 V

40 V

15 V

2.0 V

IC/IB = 10

IC/IB = 20

IC/IB = 10

IC/IB = 20

t

′s = ts – 1/8 tf

IB1 = IB2

MMBT3904WT1

MMBT3904WT1

MMBT3904WT1

MMBT3904WT1

TYPICAL AUDIO SMALL– SIGNAL CHARACTERISTICS

NOISE FIGURE VARIATIONS

(VCE = 5.0 Vdc, TA = 25°C, Bandwidth = 1.0 Hz)

Figure 9. Noise Figure

f, FREQUENCY (kHz)

4

6

8

10

12

2

0.1

Figure 10. Noise Figure

RS, SOURCE RESISTANCE (k OHMS)

0

1.0

2.0

4.0

10

20

40

0.2

0.4

0

100

4

6

8

10

12

2

14

0.1

1.0

2.0

4.0

10

20

40

0.2

0.4

100

f = 1.0 kHz

IC = 1.0 mA

IC = 0.5 mA

IC = 50 mA

IC = 100 mA

SOURCE RESISTANCE = 200

W

IC = 1.0 mA

SOURCE RESISTANCE = 200

W

IC = 0.5 mA

SOURCE RESISTANCE = 500

W

IC = 100 mA

SOURCE RESISTANCE = 1.0 k

IC = 50 mA

MMBT3904WT1

MMBT3904WT1