NPN SILICON PLANAR EPITAXIAL HIGH VOLTAGE

BF420

VIDEO TRANSISTORS

BF422

TO-92

Plastic Package

Designed For High Voltage Video Amplifier In Television Receivers.

ABSOLUTE MAXIMUM RATINGS(Ta=25ºC unless specified otherwise)

DESCRIPTION

SYMBOL

420

422

UNITS

Collector Emitter Voltage

300

250

V

Collector Base Voltage

300

250

V

Emitter Base Voltage

5V

Collector Current Continuous

500

mA

Power Dissipation@ Ta=25ºC

800

mW

Derate Above 25ºC

6.4

mW/ºC

Power Dissipation@ Tc=25ºC

2.75

W

Derate Above 25ºC

22

mW/ºC

Operating And Storage Junction

-55 to +150

ºC

Temperature Range

THERMAL RESISTANCE

Junction to ambient

156

ºC/W

Junction to case

45

ºC/W

ELECTRICAL CHARACTERISTICS (Ta=25ºC Unless Specified Otherwise)

DESCRIPTION

SYMBOL TEST CONDITION

422

420

UNITS

Collector Emitter Voltage*

>250

>300

V

Collector Base Voltage

>250

>300

V

Emitter Base Voltage

>5

>5

V

Collector Cut off Current

<10

<10

nA

Emitter Cut off Current

<100

<100

nA

DC Current Gain

>50

>50

Collector Emitter Saturation Voltage

<0.5

<0.5

V

Base Emitter Saturation Voltage

<2

<2

V

Transys

Electronics

LI M ITE D