1997 Apr 09

2

Philips Semiconductors

Product specification

NPN high-voltage transistor

BF419

FEATURES

• Low current (max. 100 mA)

• High voltage (max. 250 V).

APPLICATIONS

• Driver for line output transistors in colour television

receivers.

DESCRIPTION

NPN high-voltage transistor in a TO-126; SOT32 plastic

package.

PINNING

PIN

DESCRIPTION

1

emitter

2

collector connected to mounting base

3

base

Fig.1

Simplified outline (TO-126; SOT32)

and symbol.

handbook, halfpage

MAM254

12

3

Top view

1

2

3

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

TYP.

MAX.

UNIT

collector-base voltage

open emitter

−

300

V

collector-emitter voltage

open base

−

250

V

peak collector current

−

300

mA

total power dissipation

−

6W

DC current gain

45

−

feedback capacitance

−

3.5

pF

transition frequency

90

−

MHz