MMBT3904

NPN GENERAL PURPOSE SWITCHING TRANSISTOR

Voltage - 40 Volts

Power Dissipation - 300 mWatt

●

OFF CHARACTERISTICS

Symbol

Min.

Typ.

Max.

Unit

V

C

40

–

–

V

60

–

–

Emitter–Base Breakdown Voltage

V

6

–

–

nA

–

–

50

Base Cutoff Current

nA

–

–

50

ON CHARACTERISTICS (Note 3.)

40

–

–

70

–

–

100

–

300

60

–

–

30

–

–

V

–

–

0.2

–

–

0.3

V

0.65

–

0.85

–

–

0.95

SMALL–SIGNAL CHARACTERISTICS

Symbol

Min.

Typ.

Max.

Unit

MHz

300

–

–

pF

–

–

4

pF

–

–

8

Input Impedance

k

1

–

10

Voltage Feedback Ratio

X 10

–4

0.5

–

8

Small–Signal Current Gain

100

–

400

Output Admittance

μmhos

1

–

40

Noise Figure

NF

dB

,f =1.0kHz)

–

–

5

3. Pulse Test: Pulse Width <300 μs, Duty Cycle <2.0%.

Current–Gain — Bandwidth Product

Output Capacitance

Collector–Emitter Saturation Voltage(3)

Characteristic

DC Current Gain

Input Capacitance

Characteristic

Collector–Emitter Breakdown Voltage

Base–Emitter Saturation Voltage

Collector–Base Breakdown Voltage

Collector Cutoff Current

Ω

Ω

ELECTRICAL CHARACTERISTICS (Ta = 25℃)

= 0)

(I

(I

= 0)