CYStech Electronics Corp.


Spec. No. : C234A3
Issued Date : 2004.02.27
Revised Date : 2004.07.28
Page No. : 1/4

BF422A3 CYStek Product Specification


NPN Epitaxial Planar Transistor
BF422A3

Description
• NPN high voltage transistors in a TO-92 plastic package.
• Complementary to BF423A3.


Features
• Low feedback capacitance.

Applications
• Class-B video output stages in color television and professional monitor equipment.

Symbol Outline


Absolute Maximum Ratings (Ta=25°C)
Parameter Symbol Conditions Min Max Unit
Collector-Base Voltage VCBO Open emitter 250 V
Collector-Emitter Voltage VCEO Open base 250 V
Emitter-Base Voltage VEBO Open collector 5 V
Collector Current (DC) IC 50 mA
Peak Collector Current ICM 100 mA
Peak Base Current IBM 50 mA
Power Dissipation; Pd Tamb≤25℃ ; Note 830 mW
Junction Temperature Tj 150 °C
Storage Temperature Tstg -65 +150 °C
Operating Ambient Temperature Tamb -65 +150 °C
Note : Transistor mounted on a printed-circuit board.
BF422A3

TO-92

B： Base
C： Collector
E： Emitter
E C B