Spec. No. : C660FP Issued Date : 2008.05.20 CYStech Electronics Corp.Revised Date : Page No. : 1/5 NPN Epitaxial Planar Transistor BU941ZFP Features High BVCEO Low VCE(SAT) High current capability Built-in clamping zener Pb-free package Applications High ruggedness electronic ignitions Equivalent Circuit Outline BU941ZFP TO-220FP C B E B

Spec. No. : C660F3 Issued Date : 2010.10.01 CYStech Electronics Corp.Revised Date : 2014.02.13 Page No. : 1/6 NPN Epitaxial Planar Transistor BU941ZF3 Features High BVCEO Low VCE(SAT) High current capability Built-in clamping zener Pb-free lead plating package Applications High ruggedness electronic ignitions Equivalent Circuit Outline TO-263

UNISONIC TECHNOLOGIES CO., LTD BU941Z NPN SILICON TRANSISTOR NPN POWER DARLINGTON HIGH VOLTAGE IGNITION 1TO-3PCOIL DRIVER FEATURES 1TO-220* NPN Darlington * Integrated antiparallel collector-emitter diode APPLICATIONS 1* High ruggedness electric ignitions TO-263 INTERNAL SCHEMATIC DIAGRAM (2) CB(1)(3) E ORDERING INFORMATION Ordering Number

BU941ZT/BU941ZTFPBUB941ZT HIGH VOLTAGE IGNITION COIL DRIVERNPN POWER DARLINGTON VERY RUGGED BIPOLAR TECHNOLOGY BUILT IN CLAMPING ZENER HIGH OPERATING JUNCTIONTEMPERATURE WIDE RANGE OF PACKAGES SURFACE-MOUNTING D2PAK (TO-263)3 3POWER PACKAGE IN TUBE (NO SUFFIX)2 2OR IN TAPE & REEL (SUFFIX T4)1 1TO-220 TO-220FPAPPLICATIONS HIGH RUGGEDNESS ELECTRONICI

BU941ZT/BU941ZTFPBUB941ZTHIGH VOLTAGE IGNITION COIL DRIVERNPN POWER DARLINGTON VERY RUGGED BIPOLAR TECHNOLOGY BUILT IN CLAMPING ZENER HIGH OPERATING JUNCTIONTEMPERATURE WIDE RANGE OF PACKAGES SURFACE-MOUNTING D2PAK (TO-263)3 3POWER PACKAGE IN TUBE (NO SUFFIX)2 2OR IN TAPE & REEL (SUFFIX "T4")1 1TO-220 TO-220FPAPPLICATIONS HIGH RUGGEDNESS ELECTRONICIGNITI

Spec. No. : C660E3 Issued Date : 2014.01.09 CYStech Electronics Corp.Revised Date : Page No. : 1/6 NPN Epitaxial Planar Transistor BVCEO 350VBU941ZLE3 IC 15AVCESAT(MAX) 1.6VFeatures High BVCEO Low VCE(SAT) High current capability Built-in clamping zener Pb-free lead plating package Applications High ruggedness electronic ignitions Equivalent

Spec. No. : C660E3 Issued Date : 2010.02.03 CYStech Electronics Corp.Revised Date : Page No. : 1/5 NPN Epitaxial Planar Transistor BVCEO 350VBU941ZE3 IC 15ARCESAT(MAX) 0.18 Features High BVCEO Low VCE(SAT) High current capability Built-in clamping zener Pb-free lead plating package Applications High ruggedness electronic ignitions Equivale

Spec. No. : C660P3 Issued Date : 2008.07.22 CYStech Electronics Corp.Revised Date :2011.01.04 Page No. : 1/5 NPN Epitaxial Planar Transistor BVCEO 350VIC 15ABU941ZP3 VCESAT(MAX) 2V @12AFeatures High BVCEO Low VCE(SAT) High current capability Built-in clamping zener Pb-free lead plating package Applications High ruggedness electronic ignitions

isc Silicon NPN Darlington Power Transistor BU941ZLDESCRIPTIONBuilt In Clamping ZenerHigh Operating Junction TemperatureMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSHigh ruggedness electric ignitionsABSOLUTE MAXIMUM RATINGS(TB B=25)aSYMBOL PARAMETER VALUE UNITV Collector-Emitter Voltage 350 VCEOVB Emitter-Base

isc Silicon NPN Darlington Power Transistor BU941ZPFIDESCRIPTIONCollector-Emitter Sustaining Voltage-: V = 350V(Min.)CEO(SUS)High ReliabilityLow Collector Saturation VoltageMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSHigh ruggedness electronic ignitionsHigh voltage ignition coil driverABSOLUTE MAXIMUM RATINGS(T

isc Silicon NPN Power Transistor BU941ZTDESCRIPTIONHigh VoltageDARLINGTONMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSHigh ruggedness electronic ignitionsHigh voltage ignition coil driverABSOLUTE MAXIMUM RATINGS (T =25)aSYMBOL PARAMETER VALUE UNITV Collector-Base Voltage 500 VCBOV Collector-Emitter Voltage

isc Silicon NPN Darlington Power Transistor BU941ZPDESCRIPTIONBuilt In Clamping ZenerHigh Operating Junction TemperatureMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSDesigned for use in automotive environment aselectronic ignition power actuators.ABSOLUTE MAXIMUM RATINGS(TB B=25)aSYMBOL PARAMETER VALUE UNITV Colle