® BUF420M
HIGH VOLTAGE FAST-SWITCHING
NPN POWER
TRANSISTOR
s STMicroelectronics PREFERRED
SALESTYPE
s HIGH VOLTAGE CAPABILITY
s VERY HIGH SWITCHING SPEED s MINIMUM LOT-TO-LOT SPREAD FOR
)RELIABLE OPERATION t(ss LOW BASE-DRIVE REQUIREMENTS ucAPPLICATIONS: ds SWITCH MODE POWER SUPPLIES ros MOTOR CONTROL te PDESCRIPTION
The BUF420M is manufactured using High
leVoltage Multi Epitaxial Planar technology for high soswitching speeds and high voltage capacity.
It buses a Cellular Emitter structure with planar edge Otermination to enhance switching speeds while -maintaining a wide RBSOA.
)The BUF series is designed for use in t(shigh-frequency power supplies and motor control capplications.
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