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BUT92 FAST-SWITCHING POWER TRANSISTOR s SGS-THOMSON PREFERRED SALESTYPE s NPN TRANSISTOR s hFE > 10 AT IC =35A s HIGH EFFICIENCY SWITCHING s VERY LOW SATURATION VOLTAGE s RECTANGULAR SAFE OPERATING AREA s WIDE ACCIDENTAL OVERLOAD AREA APPLICATIONS 1 s UNINTERRUPTABLE POWER SUPPLY 2 s SWITCH MODE POWER SUPPLIES s MOTOR CONTROL TO-3 DESCRIPTION (version "S") The BUT92 is a Multiepitaxial Planar NPN Transistor in TO-3 package. It is intended for use in high frequency and efficency converters, switching regulators and motor control. INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V CEV Collector-Emitter Voltage (V BE = -1.5 V) 350 V V CEO Collector-Emitter Voltage (I B = 0) 250 V V EBO Emitter-Base Voltage (I C = 0) 7 V IE Emitter Current 50 A I EM Emitter Peak Current 75 A IB Base Current 10 A I BM Base Peak Current 15 A P tot Total Power Dissipation at T case 25 Co 250 W o T stg Storage Temperature -65 to 200 C o Tj Junction Temperature 200 C June 1997 1/4 BUT92 THERMAL DATA o R thj-case Thermal Resistance Junction-case Max 0.7 C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit I CER Collector Cut-off V CE = V CEV 0.4 mA o Current (R BE = 10 ) V CE = V CEV T c = 100 C 4 mA