BUF420A Datasheet and Replacement

BUF420AHIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTOR SGS-THOMSON PREFERRED SALESTYPE HIGH VOLTAGE CAPABILITY VERY HIGH SWITCHING SPEED MINIMUM LOT-TO-LOT SPREAD FORRELIABLE OPERATION LOW BASE-DRIVE REQUIREMENTSAPPLICATIONS:3 SWITCH MODE POWER SUPPLIES21 MOTOR CONTROLDESCRIPTIONTO-218The BUF420A is manufactured using HighVoltage Multi Epitaxial Planar techno

isc Silicon NPN Power Transistor BUF420ADESCRIPTIONCollector-Emitter Sustaining Voltage-: V = 450V(Min.)CEO(SUS)High Speed Switching100% avalanche testedMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSDesigned for use in high-frequency power supplies andmotor control applications.ABSOLUTE MAXIMUM RATINGS(T =25)a

BUF420AWHIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTOR STMicroelectronics PREFERREDSALESTYPE HIGH VOLTAGE CAPABILITY VERY HIGH SWITCHING SPEED MINIMUM LOT-TO-LOT SPREAD FORRELIABLE OPERATION LOW BASE-DRIVE REQUIREMENTS APPLICATIONS: 32 SWITCH MODE POWER SUPPLIES1 MOTOR CONTROL TO-247DESCRIPTION The BUF420AW is manufactured using HighVoltage Multi Epita

BUF420BUF420MHIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTOR SGS-THOMSON PREFERRED SALESTYPES NPN TRANSISTOR HIGH VOLTAGE CAPABILITY VERY HIGH SWITCHING SPEED MINIMUM LOT-TO-LOT SPREAD FORRELIABLE OPERATION LOW BASE-DRIVE REQUIREMENTS13APPLICATIONS:22 SWITCH MODE POWER SUPPLIES1 MOTOR CONTROLTO-218 TO-3DESCRIPTION(version R)The BUF420 and BUF420

BUF420MHIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTOR STMicroelectronics PREFERREDSALESTYPE HIGH VOLTAGE CAPABILITY VERY HIGH SWITCHING SPEED MINIMUM LOT-TO-LOT SPREAD FORRELIABLE OPERATION LOW BASE-DRIVE REQUIREMENTS 1APPLICATIONS: 2 SWITCH MODE POWER SUPPLIES MOTOR CONTROL TO-3DESCRIPTION (version "R")The BUF420M is manufactured using HighVoltage M

isc Silicon NPN Power Transistor BUF420IDESCRIPTIONCollector-Emitter Sustaining Voltage-: V = 450V(Min.)CEO(SUS)High Speed Switching100% avalanche testedMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSDesigned for use in high-frequency power supplies andmotor control applications.ABSOLUTE MAXIMUM RATINGS(T =25)a

isc Silicon NPN Power Transistor BUF420DESCRIPTIONCollector-Emitter Sustaining Voltage-: V = 450V(Min.)CEO(SUS)High Speed Switching100% avalanche testedMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSDesigned for use in high-frequency power supplies andmotor control applications.ABSOLUTE MAXIMUM RATINGS(T =25)a

isc Silicon NPN Power Transistor BUF420MDESCRIPTIONWith TO-3 packagingLarge collector currentLow collector saturation voltageHigh power dissipationMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSDesigned for use in DC-DC converterDriver of solenoid or motorFor audio amplifier applicationsABSOLUTE MAXIMUM RATING