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BFX34 SILICON NPN TRANSISTOR s SGS-THOMSON PREFERRED SALESTYPE s NPN TRANSISTOR DESCRIPTION The BFX34 is a silicon epitaxial planar NPN transistor in Jedec TO-39 metal case, intented for high current applications. Very low saturation voltage and high speed at high current levels make it ideal for power drivers, power amplifiers, switching power supplies and relay drivers inverters. TO-39 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V CBO Collector-Base Voltage (I E = 0) 120 V V CEO Collector-Emitter Voltage (I B = 0) 60 V V EBO Emitter-Base Voltage (I C = 0) 6 V IC Collector Current 5 A P tot Total Dissipation at T case 25 Co 0.87 W T amb 25 o C 5 W o T stg Storage Temperature -65 to 200 C o Tj Max. Operating Junction Temperature 200 C June 1997 1/4 BFX34 THERMAL DATA o R thj-case Thermal Resistance Junction-case Max 35 C/W o R thj-amb Thermal Resistance Junction-amb Max 200 C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit I CES Collector Cut-off V CE = 60 V 0.02 10