BUF420A

HIGH VOLTAGE FAST-SWITCHING

NPN POWER TRANSISTOR

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STMicroelectronics PREFERRED

SALESTYPE

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HIGH VOLTAGE CAPABILITY

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VERY HIGH SWITCHING SPEED

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MINIMUM LOT-TO-LOT SPREAD FOR

RELIABLE OPERATION

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LOW BASE-DRIVE REQUIREMENTS

APPLICATIONS:

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SWITCH MODE POWER SUPPLIES

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MOTOR CONTROL

DESCRIPTION

The BUF420A is manufactured using High

Voltage Multi Epitaxial Planar technology for high

switching speeds and high voltage capacity. It

use a Cellular Emitter structure with planar edge

termination to enhance switching speeds while

maintaining a wide RBSOA.

The

BUF

series

is

designed for

use

in

high-frequency power supplies and motor control

applications.

®

INTERNAL SCHEMATIC DIAGRAM

June 2000

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Val ue

Uni t

1000

V

450

V

7

V

Collect or Current

30

A

60

A

Base Current

6

A

9

A

200

W

St orage Temperature

-65 to 150

Max. Operating Junction Temperature

150

1

2

3

TO-218

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