BF421 datasheet(1/4 Pages) CDIL

Part #	BF421

Description	PNP SILICON PLANAR EPITAXIAL HIGH VOLTAGE VIDEO TRANSISTORS

PDF	4 Pages

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Manufacturer	CDIL [Continental Device India Limited]

Direct Link	http://www.cdilsemi.com

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PNP SILICON PLANAR EPITAXIAL HIGH VOLTAGE

BF421

VIDEO TRANSISTORS

BF423

TO-92

Plastic Package

High Voltage Video Amplifier

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

DESCRIPTION

SYMBOL

423

421

UNITS

Collector Emitter Voltage

VCEO

250

300

V

Collector Base Voltage

VCBO

250

300

V

Emitter Base Voltage

VEBO

5V

Collector Current Continuous

IC

500

mA

Power Dissipation@ Ta=25ºC

PD

800

mW

Derate Above 25ºC

6.4

mW/ºC

Power Dissipation@ Tc=25ºC

PD

2.75

W

Derate Above 25ºC

22

mW/ºC

Operating And Storage Junction

Tj, Tstg

-55 to +150

ºC

Temperature Range

THERMAL RESISTANCE

Junction to ambient

Rth(j-a)

156

ºC/W

Junction to case

Rth(j-c)

45

ºC/W

ELECTRICAL CHARACTERISTICS (Ta=25ºC Unless Otherwise Specified)

DESCRIPTION

SYMBOL TEST CONDITION

423

421

UNITS

Collector Emitter Voltage*

VCEO

IC=1.0mA,IB=0

>250

>300

V

Collector Base Voltage

VCBO

IC=100µA.IE=0

>250

>300

V

EmitterBase Voltage

VEBO

IE=100µA, IC=0

>5

V

Collector-Cut off Current

ICBO

VCB=200V,IE=0

<10

nA

Emitter-Cut off Current

IEBO

VEB=5.0V, IC=0

<100

nA

DC Current Gain

hFE

IC=25mA,VCE=20V

>50

Collector Emitter Saturation Voltage

VCE(sat)

IC=20mA,IB=2mA

<0.5

V

Base Emitter Saturation Voltage

VBE(sat)

IC=20mA,IB=2mA

<2

V

Continental Device India Limited

Data Sheet

Page 1 of 4

Continental Device India Limited

An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company

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