1

Power Transistors

Parameter

Collector cutoff current

Collector to base voltage

Collector to emitter voltage

Emitter to base voltage

Forward current transfer ratio

Base to emitter voltage

Collector to emitter saturation voltage

Transition frequency

Collector output capacitance

Symbol

Conditions

min

300

300

7

50

70

typ

140

2.7

max

10

250

1.2

1.5

Unit

µA

V

V

V

V

V

MHz

pF

Parameter

Collector to base voltage

Collector to emitter voltage

Emitter to base voltage

Peak collector current

Collector current

Collector power

dissipation

Junction temperature

Storage temperature

Symbol

Ratings

300

300

7

200

100

10

2.0

150

–55 to +150

Unit

V

V

V

mA

mA

W

˚C

˚C

Ta=25

°C

2SC3942

Silicon NPN triple diffusion planar type

For color TV chroma output

q

q

q

Full-pack package which can be installed to the heat sink with

one screw

Unit: mm

1:Base

2:Collector

3:Emitter

TO–220 Full Pack Package(a)

10.0

±0.2

5.5

±0.2

0.5

+0.2

–0.1

1.4

±0.1

1.3

±0.2

0.8

±0.1

2.54

±0.25

5.08

±0.5

2

13

2.7

±0.2

4.2

±0.2

φ3.1±0.1