BUL128D-BHIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTORn STMicroelectronics PREFERRED SALES Figure 1: PackageTYPEn NPN TRANSISTORn HIGH VOLTAGE CAPABILITYn LOW SPREAD OF DYNAMIC PARAMETERSn MINIMUM LOT-TO-LOT SPREAD FOR RELIABLE OPERATIONn VERY HIGH SWITCHING SPEEDn INTEGRATED ANTIPARALLEL 3COLLECTOR- EMITTER DIODE21 TO-220APPLICATIONSn ELECTRONIC BALLAST FO

BUL128D-B HIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTOR STMicroelectronics PREFERREDSALESTYPE NPN TRANSISTOR HIGH VOLTAGE CAPABILITY LOW SPREAD OF DYNAMIC PARAMETERS MINIMUM LOT-TO-LOT SPREAD FORRELIABLE OPERATION VERY HIGH SWITCHING SPEED3 INTEGRATED ANTIPARALLEL2COLLECTOR-EMITTER DIODE1APPLICATIONS:TO-220 ELECTRONIC BALLASTS FORFLUORESCENT LIGHTING

BUL128D(NPN) TO-220 TransistorTO-2201.BASE 2.COLLECTOR 3.EMITTER 3 21Features ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING FLYBACK AND FORWARD SINGLE TRANSISTOR LOW POWER CONVERTERS MAXIMUM RATINGS (TA=25 unless otherwise noted) Symbol Parameter Value Units VCBO Collector-Base Voltage 700 V Dimensions in inches and (millimeters)VCEO Collector-Emitter Vol

BUL128DR8 NPN /SILICON NPN TRANSISTOR : Purpose: Electronic ballasts for fluorescent lighting,flyback and forward single transistor low power converters. :N Features: NPN transistor,high voltage capability,low

BUL128DR7 NPN /SILICON NPN TRANSISTOR : Purpose: Electronic ballasts for fluorescent lighting,flyback and forward single transistor low power converters. :N Features: NPN transistor,high voltage capability,low

SUNROC BUL128D TRANSISTOR (NPN) TO-220 FEATURES ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING FLYBACK AND FORWARD SINGLE TRANSISTOR LOW POWER 1.BASE CONVERTERS 2.COLLECTOR MAXIMUM RATINGS (TA=25 unless otherwise noted) 3.EMITTER Symbol Parameter Value Units 1 2 3 VCBO Collector-Base Voltage 700 V VCEO Collector-Emitter Voltage 400 V VEBO Emitter-Base Voltage

Inchange Semiconductor Product Specification Silicon NPN Power Transistors BUL128D DESCRIPTION With TO-220C package High voltage ,high speed Integrated antiparallel collector-emitter diode APPLICATIONS Designed for use in lighting applications and low cost switch-mode power supplies. PINNING PIN DESCRIPTION1 Base Collector;connected to 2 mounting base